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mg50 
Samba Member
Joined: August 30, 2022
Posts: 648
Location: Southeast
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 Posted: Thu Jan 26, 2023 4:36 pm Post subject: Re: 71 Beetle engine pull adventure |
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I set the crank successfully. To help, I suspended it over the case with a small hoist I had so I could bring it down close and wiggle the bearings, raising up an inch if I needed to reposition or take a break. I was careful to engage the distributor drive without crushing gears. This image is before I put in the new bearings.
This probably should go in the stupid questions section, but I have no shame so here goes:
Is #1 firing position (and for TDC) when rod #1 is fully extended as in my picture?
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Tom K.
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Joined: March 10, 2005
Posts: 1606
Location: Central Pennsylvania
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Rickf1985
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Joined: November 26, 2022
Posts: 285
Location: NJ
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| Posted: Thu Jan 26, 2023 6:51 pm Post subject: Re: 71 Beetle engine pull adventure |
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| You are not replacing Number 2 main bearing? Not replacing one main bearing is not a good idea. The crank is going to flex at that main from the difference in sizing with tight bearing on either side of a loose bearing. |
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Tom K.
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Location: Central Pennsylvania
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Buggeee
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Joined: December 22, 2016
Posts: 4421
Location: Stuck in Ohio
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| Posted: Fri Jan 27, 2023 11:34 am Post subject: Re: 71 Beetle engine pull adventure |
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| mg50 wrote: |
This probably should go in the stupid questions section, but I have no shame so here goes:
Is #1 firing position (and for TDC) when rod #1 is fully extended as in my picture?
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In this picture, yes. So long as when you rotate it the dots on the crank gear and the cam gear will line up. The rotor, however, should be pointing at the notch in the distributor body by your little white arrow when the crank is in the position shown in the picture.
I must say that is the most exquisite contraption ever devised to assist with this operation. It belongs in a John Muir cartoon! 
_________________
1966 Sportsmobile Camper https://www.thesamba.com/vw/forum/viewtopic.php?t=...mp;start=0
72 Super Duper http://www.thesamba.com/vw/forum/viewtopic.php?t=672387
(adopted out) 61 Turkis Pile https://www.thesamba.com/vw/forum/viewtopic.php?t=728764
| SnowDaySyncro wrote: |
| Every setback is an opportunity to learn stuff and to buy new tools. |
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mg50
Samba Member
Joined: August 30, 2022
Posts: 648
Location: Southeast
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| Posted: Fri Jan 27, 2023 12:01 pm Post subject: Re: 71 Beetle engine pull adventure |
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[quote="Buggeee"]
| mg50 wrote: |
I must say that is the most exquisite contraption ever devised to assist with this operation. It belongs in a John Muir cartoon! |
________________________
if you mean my hanging crank contraption, it made things easy to keep the crank level with the target: for us skinny weaklings who like to work slow and steady  |
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Cusser
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Joined: October 02, 2006
Posts: 31379
Location: Hot Arizona
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| Posted: Fri Jan 27, 2023 12:27 pm Post subject: Re: 71 Beetle engine pull adventure |
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| Buggeee wrote: |
| I must say that is the most exquisite contraption ever devised to assist with this operation. |
Yeah - I just held by the #1 and #2 connecting rods on mine !!!
_________________
1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70. Second owner of each. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. All manual transmission except for the Yukon. http://www.thesamba.com/vw/forum/album_page.php?pic_id=335294 http://www.thesamba.com/vw/forum/album_page.php?pic_id=335297 |
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Rickf1985
Samba Member
Joined: November 26, 2022
Posts: 285
Location: NJ
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| Posted: Fri Jan 27, 2023 6:48 pm Post subject: Re: 71 Beetle engine pull adventure |
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| Tom K. wrote: |
| That last image was taken before new bearings were installed. |
I see new bearings everywhere but #2. Thinking he did not want to pull the gears and replace them. |
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mg50
Samba Member
Joined: August 30, 2022
Posts: 648
Location: Southeast
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| Posted: Fri Jan 27, 2023 7:10 pm Post subject: Re: 71 Beetle engine pull adventure |
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| Rickf1985 wrote: |
| Tom K. wrote: |
| That last image was taken before new bearings were installed. |
I see new bearings everywhere but #2. Thinking he did not want to pull the gears and replace them. |
Hey Rick, I'm working on it. You guys aren't going to let me cut any corners are you  |
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Rickf1985
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Joined: November 26, 2022
Posts: 285
Location: NJ
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| Posted: Sat Jan 28, 2023 8:07 am Post subject: Re: 71 Beetle engine pull adventure |
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| Nope, not a one. If this motor fails it will not be because we led you wrong!!!! |
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Rickf1985
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Joined: November 26, 2022
Posts: 285
Location: NJ
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| Posted: Sat Jan 28, 2023 8:11 am Post subject: Re: 71 Beetle engine pull adventure |
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| You need a clamshell puller, or the special more expensive specialty puller, to get the gears off but putting them back on is surprisingly easy by heating them up and dropping them on. |
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mg50
Samba Member
Joined: August 30, 2022
Posts: 648
Location: Southeast
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| Posted: Sat Jan 28, 2023 8:36 am Post subject: Re: 71 Beetle engine pull adventure |
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| Rickf1985 wrote: |
| You need a clamshell puller, or the special more expensive specialty puller, to get the gears off but putting them back on is surprisingly easy by heating them up and dropping them on. |
I found a used one and still waiting for it to arrive in the mail. |
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mg50
Samba Member
Joined: August 30, 2022
Posts: 648
Location: Southeast
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| Posted: Sat Jan 28, 2023 8:47 am Post subject: Re: 71 Beetle engine pull adventure |
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Prepped the new oil cooler, attaching it to the stand but not the case, rubber grommets, torqued to 5 ft. lb.
Something I could do in the meantime is install the engine compartment seals, I have both bottom and firewall. Sounds like sore fingertips. |
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Buggeee
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Location: Stuck in Ohio
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Tom K.
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mg50
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Joined: August 30, 2022
Posts: 648
Location: Southeast
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| Posted: Sun Jan 29, 2023 8:29 am Post subject: Re: 71 Beetle engine pull adventure |
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Rods -
Since I'm this deep in, decided to go ahead and remove rods and replace rod bearings.
Weighed each rod and all were same except for one 5 grams heavier.
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Rickf1985
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Joined: November 26, 2022
Posts: 285
Location: NJ
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| Posted: Sun Jan 29, 2023 12:58 pm Post subject: Re: 71 Beetle engine pull adventure |
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| I real good way to tell if the motor has been beat on is the see if those numbers from the rod are embossed into the back of the rod bearing. The bearings in the pic do not look bad at all. Just wondering, does the rod that is heavier look newer than the other three? It may have been replaced. I am anal about that stuff and I would balance it to match the others but to do that you need to check big end weights against small end weights. All big ends should weigh the same and all small ends should weigh the same. In your case for what you are doing I really would not worry too much about it. I balance mine because I tend to have a heavy foot and I also seldom build a stick motor. |
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mg50
Samba Member
Joined: August 30, 2022
Posts: 648
Location: Southeast
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| Posted: Sun Jan 29, 2023 2:06 pm Post subject: Re: 71 Beetle engine pull adventure |
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| Rickf1985 wrote: |
| I real good way to tell if the motor has been beat on is the see if those numbers from the rod are embossed into the back of the rod bearing. The bearings in the pic do not look bad at all. Just wondering, does the rod that is heavier look newer than the other three? It may have been replaced. I am anal about that stuff and I would balance it to match the others but to do that you need to check big end weights against small end weights. All big ends should weigh the same and all small ends should weigh the same. In your case for what you are doing I really would not worry too much about it. I balance mine because I tend to have a heavy foot and I also seldom build a stick motor. |
I read that within 5 grams of each other is acceptable. I suppose I could file a little off of the one. They all look to be the same series of rods, with matching #s on rod and cap. |
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Tom K.
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Rickf1985
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Joined: November 26, 2022
Posts: 285
Location: NJ
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| Posted: Mon Jan 30, 2023 7:13 am Post subject: Re: 71 Beetle engine pull adventure |
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| mg50 wrote: |
| Rickf1985 wrote: |
| I real good way to tell if the motor has been beat on is the see if those numbers from the rod are embossed into the back of the rod bearing. The bearings in the pic do not look bad at all. Just wondering, does the rod that is heavier look newer than the other three? It may have been replaced. I am anal about that stuff and I would balance it to match the others but to do that you need to check big end weights against small end weights. All big ends should weigh the same and all small ends should weigh the same. In your case for what you are doing I really would not worry too much about it. I balance mine because I tend to have a heavy foot and I also seldom build a stick motor. |
I read that within 5 grams of each other is acceptable. I suppose I could file a little off of the one. They all look to be the same series of rods, with matching #s on rod and cap. |
If you are not going to be beating on this engine then do not worry about it. If you do want to file on the heavy one be sure to read up on the procedure since there are certain areas that you can file and certain areas you do not want to file.
You know, If you keep this up I can see you asking about porting and polishing the heads and cc'ing the combustion chambers. It is a slippery slope building these engines I tell ya". LOL. |
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