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OldSchoolVW's Samba Member
Joined: July 03, 2020 Posts: 1131 Location: San Diego
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Posted: Sat Nov 16, 2024 8:59 pm Post subject: Engine Off Center After Install - ’63 Bug (Photos) |
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Before pulling the engine, everything was centered. After reinstalling the engine this afternoon, I found it was off center (see photos). The engine was out for a rebuild and new muffler (a straight stock engine rebuild, no mods). While the engine was out I replaced the rear transmission mounts and throw out bearing. At first I thought it was just the way the muffler was mounted, but I checked the engine compartment and found the gap between the tin and body on the left side was much bigger than the gap on the right side, so the whole engine appears to be cocked to the right. I tried loosening the lower transmission mount bolts to see if I could get the engine to shift a bit to the left, but no improvement. The engine and transmission are original to the car and fit straight before the engine was pulled. What should I be checking and adjusting to correct (or at least improve) this alignment? BTW, I’m planning to use the foam bus style seal, so I need at least a 1/4” gap to squeeze it in.
Thanks for your help!
_________________ Tom
"Following distance is proportional to IQ."
"If you don't do it this year, you'll be one year older when you do." Warren Miller
"But I also have to say, for the umpty-umpth time, that life isn't fair. It's just fairer than death, that's all." William Goldman
'63 Beetle Sedan
'69 Beetle Sunroof
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WrennMetallWerks Samba Member
Joined: December 06, 2007 Posts: 3186 Location: Rescue ca
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OldSchoolVW's Samba Member
Joined: July 03, 2020 Posts: 1131 Location: San Diego
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Posted: Sat Nov 16, 2024 11:44 pm Post subject: Re: Engine Off Center After Install - ’63 Bug (Photos) |
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WrennMetallWerks wrote: |
Is it possible that it was like this previously and it just wasn’t noticed until you put the motor back in the car ? |
I'd have noticed something like that when I bought the car and it would have bugged the daylights out of me. I know this kind of situation normally suggests rear end damage that was poorly repaired, but I know it was straight/centered before I pulled the engine.
I have a theory at this point ... I think the new trans mounts are the only variable. It's possible that their studs and slots are slightly out of place ... it was a major chore to get them in. If they are off by a fraction of an inch, it would cause the trans to be slightly shifted when tightened down. That fraction of an inch could very well turn into a 1/4" at the left and right engine tins and almost an inch by the time you get to the tailpipes. If I remove the lower trans mount bolts and enlarge the holes, it might give me enough wiggle room to compensate for any imperfections in the mounts. Jus sayin' ...
BTW ... I'm enjoying your Patina Pal build! _________________ Tom
"Following distance is proportional to IQ."
"If you don't do it this year, you'll be one year older when you do." Warren Miller
"But I also have to say, for the umpty-umpth time, that life isn't fair. It's just fairer than death, that's all." William Goldman
'63 Beetle Sedan
'69 Beetle Sunroof
'70 Beetle Sedan
'73 Type 3 Fastback |
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Busstom Samba Member
Joined: November 23, 2014 Posts: 4561 Location: San Jose, CA
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Posted: Sun Nov 17, 2024 12:06 am Post subject: Re: Engine Off Center After Install - ’63 Bug (Photos) |
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Hmmm, weird problem. Your new rear mounts look normal from the pics, and the only way I could see a mount cocking the whole works like that is if you'd changed the front mount, with one that had some anomalous stud positioning, thereby cocking the tranny almost like a rudder would steer a boat...but you didn't change the front mount.
I know this seems like an absurd question, but are you certain the engine is mated fully and flush with the transaxle housing? That's the only thing that jumps to mind at the moment, I can't imagine some stubborn rear mounts could even move in that axis, the only way I can see that is if the M18 holes in the cradle were slotted left/right.
. _________________ My name's Steve and it's pronounced "Bust 'em" (cuz people think I'm Tom)
cory464 wrote: |
if you aren't perfectly centered in the hole you will have issues when you tap it. |
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Stockholm VW Samba Member
Joined: July 02, 2020 Posts: 331 Location: California
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Posted: Sun Nov 17, 2024 12:25 am Post subject: Re: Engine Off Center After Install - ’63 Bug (Photos) |
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The only variable in this equation seems to be the transmission mounts. I’d start there. _________________ 1966 Volkswagen 1300 Sedan (now 1641), 6 volt, L456 Ruby Red, Platinum leatherette. |
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richparker Samba Member
Joined: November 24, 2011 Posts: 7312 Location: Durango, CO
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OldSchoolVW's Samba Member
Joined: July 03, 2020 Posts: 1131 Location: San Diego
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Posted: Sun Nov 17, 2024 7:32 am Post subject: Re: Engine Off Center After Install - ’63 Bug (Photos) |
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Busstom wrote: |
Hmmm, weird problem. Your new rear mounts look normal from the pics, and the only way I could see a mount cocking the whole works like that is if you'd changed the front mount, with one that had some anomalous stud positioning, thereby cocking the tranny almost like a rudder would steer a boat...but you didn't change the front mount.
I know this seems like an absurd question, but are you certain the engine is mated fully and flush with the transaxle housing? That's the only thing that jumps to mind at the moment, I can't imagine some stubborn rear mounts could even move in that axis, the only way I can see that is if the M18 holes in the cradle were slotted left/right.
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Right, I didn't touch the front mount. It was solid so let it be. I've got the upper and lower nuts on quite tight, so the engine should be mated to the transmission evenly. I did remove the cradle to clean it up, but reinstalled it as it came out and torqued to spec. If you really zoom in on the trans mounts, you can see that the one on the left seems to sit just rearward of the edge of the cradle and the right one seems to sit just forward of the edge of the cradle. It's not much, but maybe enough to cause the problem I'm having?
Unless another suggestion comes up, I'll slide the engine back out and have another look at the mounts and cradle. I see what you're saying about the mounts not being able to make the trans shift like this. The holes in the bottom of the mounts are slotted, but it seems that would allow the trans to rotate in the cradle rather than shift from side to side. Head scratching continues ... _________________ Tom
"Following distance is proportional to IQ."
"If you don't do it this year, you'll be one year older when you do." Warren Miller
"But I also have to say, for the umpty-umpth time, that life isn't fair. It's just fairer than death, that's all." William Goldman
'63 Beetle Sedan
'69 Beetle Sunroof
'70 Beetle Sedan
'73 Type 3 Fastback |
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OldSchoolVW's Samba Member
Joined: July 03, 2020 Posts: 1131 Location: San Diego
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Posted: Sun Nov 17, 2024 7:48 am Post subject: Re: Engine Off Center After Install - ’63 Bug (Photos) |
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richparker wrote: |
Whose mounts did you use?
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Ordered them from WW. They looked well made ... better than they look in the photo on their website. They make note of the density of the mount material. The ones I ordered were the same density as the OEM material (65-durometer rubber). I'm guessing the CB Performance mounts are higher density material, as might be needed for off-road applications?
https://www.wolfsburgwest.com/cart/DetailsList.cfm?ID=111301263 _________________ Tom
"Following distance is proportional to IQ."
"If you don't do it this year, you'll be one year older when you do." Warren Miller
"But I also have to say, for the umpty-umpth time, that life isn't fair. It's just fairer than death, that's all." William Goldman
'63 Beetle Sedan
'69 Beetle Sunroof
'70 Beetle Sedan
'73 Type 3 Fastback |
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richparker Samba Member
Joined: November 24, 2011 Posts: 7312 Location: Durango, CO
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aquifer Samba Member
Joined: August 30, 2021 Posts: 174 Location: Nebraska
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Posted: Sun Nov 17, 2024 8:37 am Post subject: Re: Engine Off Center After Install - ’63 Bug (Photos) |
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Interesting problem, and I agree that it’s probably the mounts causing the bell housing to sit off to one side slightly.
I think I would find a center point on the bell housing and a consistent place on each side of the car to measure against. That would tell you if the back of the transmission is cocked off to the side a little bit. I suppose the measurements might not be definitive in an of themselves because the spot on the car you’re measuring against could be off kilter, but if the measurements are consistent with what you’re seeing from the tail pipes, then it’s a pretty good indicator that the bell housing is off center.
I’m glad you posted this as I will soon be reinstalling my transmission, complete with new mounts. I’ll be sure to try to find some way to measure it to make sure the bell housing is in the “center” of the car laterally - as a starting point anyway.
Edited to add: if the measurements indicate that the bell housing is off to the side like you think, I wonder if loosening the two large bracket bolts and giving it a shove might be enough to fix the problem. Measure it again, then tighten everything up. _________________ Current hobby vehicles:
1967 Beetle
1973 Beetle
1998 Jaguar XJR, restored myself, in near-immaculate condition |
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McFunzeepants Samba Member
Joined: February 04, 2015 Posts: 131 Location: Santa Cruz
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Posted: Sun Nov 17, 2024 9:23 am Post subject: Re: Engine Off Center After Install - ’63 Bug (Photos) |
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I thought only weird stuff like this happened to me...
Lots of good advice here on the TheSamba.
It's ether the motor /trans being off center or it's the body right?
To tease out variables, you might want to:
- Reinstall the old rear trans mounts to see if anything changed?
-If the old mounts are too far gone, flip the current mounts from left to right- anything changed?
-Any cracks in the front nose cone mount?
-Does the shift linkage / shift coupler look straight when you look at in the tunnel?
- Is the trans cradle centered on the horns? |
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OldSchoolVW's Samba Member
Joined: July 03, 2020 Posts: 1131 Location: San Diego
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Posted: Sun Nov 17, 2024 12:00 pm Post subject: Re: Engine Off Center After Install - ’63 Bug (Photos) |
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aquifer wrote: |
I think I would find a center point on the bell housing and a consistent place on each side of the car to measure against. That would tell you if the back of the transmission is cocked off to the side a little bit.
if the measurements indicate that the bell housing is off to the side like you think, I wonder if loosening the two large bracket bolts and giving it a shove might be enough to fix the problem. Measure it again, then tighten everything up. |
I suspect the car isn't perfectly symmetrical, but will try to locate two opposing points of reference to measure from and see what I get.
By "two large bracket bolts" I believe you are referring to the bolts that attach the cradle to the horns, right? I don't recall if the holes in the cradle were slightly oversized so as to allow some repositioning. Definitely something to check if fiddling with the trans mounts doesn't work.
McFunzeepants wrote: |
I thought only weird stuff like this happened to me...
Lots of good advice here on the TheSamba.
It's ether the motor /trans being off center or it's the body right?
To tease out variables, you might want to:
- Reinstall the old rear trans mounts to see if anything changed?
-If the old mounts are too far gone, flip the current mounts from left to right- anything changed?
-Any cracks in the front nose cone mount?
-Does the shift linkage / shift coupler look straight when you look at in the tunnel?
- Is the trans cradle centered on the horns? |
I'm sure the "weird stuff" club isn't as exclusive as you think ... especially when it comes to these cars.
Yup, the body didn't experience any trauma while the engine was out, and the engine position is dependent on the transmission's position.
Unfortunately, the old mounts are long gone. They weren't completely shot, but far enough along to warrant replacement.
I was thinking about rotating the right mount 180 degrees and reinstalling. I figure it might be best to try one thing at a time, otherwise I might end up over correcting.
The front mount was really solid, so I left it in. Replacing it would introduce another variable to factor in. The engine was centered prior to removal with the existing front mount in place, so I think I'll just leave that in place.
Didn't think of checking the shift coupler ... but I will to see if it looks off.
I'm not sure of the best way to determine if the cradle is centered on the horns ... but I'll see if I can find some reference points that will work.
It's a chilly 45 degrees in the garage this morning, so I think I'll wait a bit before getting out there and attempting to pretzel myself like a younger me used to do ... _________________ Tom
"Following distance is proportional to IQ."
"If you don't do it this year, you'll be one year older when you do." Warren Miller
"But I also have to say, for the umpty-umpth time, that life isn't fair. It's just fairer than death, that's all." William Goldman
'63 Beetle Sedan
'69 Beetle Sunroof
'70 Beetle Sedan
'73 Type 3 Fastback |
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OldSchoolVW's Samba Member
Joined: July 03, 2020 Posts: 1131 Location: San Diego
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Posted: Sun Nov 17, 2024 3:29 pm Post subject: Re: Engine Off Center After Install - ’63 Bug (Photos) |
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Okay, it looks like we have a smoking gun. The left trans mount is definitely sitting farther rearward in the cradle than the right mount. I don't recall seeing any markings on the mounts to suggest that they needed to be oriented a particular way.
So out comes the engine. I'll start by turning the left mount 180 degrees and see if it sits like the right mount. Hopefully this is all it takes. Stay tuned ..
_________________ Tom
"Following distance is proportional to IQ."
"If you don't do it this year, you'll be one year older when you do." Warren Miller
"But I also have to say, for the umpty-umpth time, that life isn't fair. It's just fairer than death, that's all." William Goldman
'63 Beetle Sedan
'69 Beetle Sunroof
'70 Beetle Sedan
'73 Type 3 Fastback |
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viiking Samba Member
Joined: May 10, 2013 Posts: 2964 Location: Sydney Australia
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Posted: Sun Nov 17, 2024 3:39 pm Post subject: Re: Engine Off Center After Install - ’63 Bug (Photos) |
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Is it my eyes or the angle of the last two photos?
If you draw a straight line between the centreline of bolts on the second last photo and compare it to the last photo does the line of the "L" bracket in the last photo not look like it lines up with the outside of the bolt not the centre of the bolt?
Could just be the photo though. _________________ 1968 1500 RHD Lotus White Beetle since birth. In the hospital for major surgery
1966 Lancia Flavia Pininfarina Coupe - in the waiting room
Discharged: 1983 Vanagon, 1974 1800 Microbus,1968 Low Light,1968 Type 3 |
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Busstom Samba Member
Joined: November 23, 2014 Posts: 4561 Location: San Jose, CA
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Posted: Sun Nov 17, 2024 4:53 pm Post subject: Re: Engine Off Center After Install - ’63 Bug (Photos) |
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OldSchoolVW's wrote: |
I'll start by turning the left mount 180 degrees and see if it sits like the right mount. Hopefully this is all it takes. Stay tuned .. |
I installed a pair of those gray WW mounts recently and I did notice a very slight offset, so I installed them symmetrically.
I guess I'm ready to be surprised, best of luck. I don't see how that could cock the whole works so much (most of the offset was accommodated by the slots in the cradle). _________________ My name's Steve and it's pronounced "Bust 'em" (cuz people think I'm Tom)
cory464 wrote: |
if you aren't perfectly centered in the hole you will have issues when you tap it. |
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rcooled Samba Member
Joined: September 20, 2008 Posts: 2650 Location: Santa Cruz, CA
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Posted: Sun Nov 17, 2024 5:21 pm Post subject: Re: Engine Off Center After Install - ’63 Bug (Photos) |
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OldSchoolVW's wrote: |
The left trans mount is definitely sitting farther rearward in the cradle than the right mount. |
The mounting holes in the transmission cradle are slotted, allowing some fore/aft adjustment of the rubber mounts. In your photos, it looks like the right mount is pushed all the way forward in the slots, while the left one is pushed all the way back. That's what accounts for the difference in the way the mounts are sitting in the cradle and why the motor is offset to the right. The mounts aren't specifically R or L...they can go on either side. _________________ '63 Ragtop (current)
'65 Ghia coupe (totaled)
'67 Ghia convertible (current)
'69.5 Ghia convertible and
'62, '63, '65, '69 Bugs (all long gone) |
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OldSchoolVW's Samba Member
Joined: July 03, 2020 Posts: 1131 Location: San Diego
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Posted: Sun Nov 17, 2024 9:02 pm Post subject: Re: Engine Off Center After Install - ’63 Bug (Photos) |
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I appreciate all the thinking and input.
So the engine is out and all of the bolts and nuts for the trans mounts are removed. I guess the next step would be to remove the cradle, pull the mounts check and reinstall as Busstom did to minimize any offset. I don't recall if the holes for the cradle mounting bolts (to the fork) are oversized or slotted to allow for any lateral adjustment, but if so, I can shift it a bit to the left. I think I'll leave the lower bolts for the trans mounts out when I reinstall the engine. The trans can only pivot on the front mount, so if I can get the engine into the proper position, I should be able to see how well the holes in the cradle and the holes in the trans mounts line up. If they're too far off, the only solution I see would be to drill out these holes so I can install the bolts while the engine is in the correct position, right? I don't particularly like the idea of drilling out these holes, but aftermarket parts usually don't fit like the originals and don't leave us with many good options for making them work. Thoughts and opinions on this plan are welcome. _________________ Tom
"Following distance is proportional to IQ."
"If you don't do it this year, you'll be one year older when you do." Warren Miller
"But I also have to say, for the umpty-umpth time, that life isn't fair. It's just fairer than death, that's all." William Goldman
'63 Beetle Sedan
'69 Beetle Sunroof
'70 Beetle Sedan
'73 Type 3 Fastback |
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Busstom Samba Member
Joined: November 23, 2014 Posts: 4561 Location: San Jose, CA
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Posted: Sun Nov 17, 2024 10:29 pm Post subject: Re: Engine Off Center After Install - ’63 Bug (Photos) |
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I'm just brainstorming some things that I would check if I was in that predicament...if you have a 24" level (or other rigid, trusty straightedge), you can place it across the bellhousing flange and just eyeball if it seems parallel with the firewall. Of course, the puffy nature of the tarboard might obscure the view of a lateral line on the firewall.
The other thing I'd be tempted to do is drop a plumb bob from a centerpoint on the body and let the bob hang in front of the tranny input shaft, that might show you if/how much it's skewed. For a hanging point on the body, you might use the bracket that is for latching the decklid spring into.
The M18 holes in the cradle are usually pretty snug and won't allow much sideward adjustment at all, not enough to help your situation, yours is really off. Hopefully it's something with the mounts (fingers crossed emoji here).
By the way, when I said I noticed an offset on the WW mounts, it was slight, I mean very slight, such that it should be negligible in the scheme of things.
By the way #2, in this pic below, the space between the tray (shelf) and the 3-4 tin looks pretty much parallel (as did the 1-2 side), I would think those lines should be divergent if the tranny was truly skewed/cocked, making this quandary all the more puzzling.
_________________ My name's Steve and it's pronounced "Bust 'em" (cuz people think I'm Tom)
cory464 wrote: |
if you aren't perfectly centered in the hole you will have issues when you tap it. |
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aquifer Samba Member
Joined: August 30, 2021 Posts: 174 Location: Nebraska
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Posted: Mon Nov 18, 2024 6:25 am Post subject: Re: Engine Off Center After Install - ’63 Bug (Photos) |
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Busstom wrote: |
By the way #2, in this pic below, the space between the tray (shelf) and the 3-4 tin looks pretty much parallel (as did the 1-2 side), I would think those lines should be divergent if the tranny was truly skewed/cocked, making this quandary all the more puzzling. |
I noticed that too. I wonder if the entire transmission is mounted too far to the right. That would mean that the front mount is also “off” and needs to be moved to the left along with the rear mounts. All of that seems to be too coincidental to me, but it’s all I can think of. Especially since the problem didn’t exist before. The only thing that has changed is the mounts. Right?
I like the idea of the plumb bob. It wouldn’t necessarily speak to the orientation of the transmission, so the nose cone could still be cocked one way or the other I suppose, while the output shaft would appear to be centered. I don’t have a suggestion for that yet, just thinking out loud here.
Edited to add: how does the hockey stick shaft look under the back seat? Is it in the center of the hole? Does it seem to be coming in at an angle? Not sure if you can tell much by looking there, but maybe? _________________ Current hobby vehicles:
1967 Beetle
1973 Beetle
1998 Jaguar XJR, restored myself, in near-immaculate condition |
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Ovally Samba Member
Joined: June 14, 2014 Posts: 490 Location: Belgium
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Posted: Mon Nov 18, 2024 8:07 am Post subject: Re: Engine Off Center After Install - ’63 Bug (Photos) |
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Is the marking in the center of the transmission carrier in line with the center of the lower rib of the transmission?
If not, the gearbox and engine will be off center.
Example is from a split case transmission but also applies to a later transmission.
Regards. _________________ VW Bug Oval 1953
VW Bug 1200 D motor
Porsche 911S MFI 1970
Mazda 929 Hardtop 1977
Mercedes SLC 180 Roadster 2018 |
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