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airschooled Air-Schooled
Joined: April 04, 2012 Posts: 12688 Location: on a bike ride somewhere
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Posted: Sat Aug 17, 2019 10:18 pm Post subject: Re: Chasing an Oil Leak - Gaskets? Seals? |
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raygreenwood wrote: |
Indian head also works great with seals like this where the fit is difficult. You have to work fast on warm days though....that stuff tacks up and freezes fast. Ray |
Yes! I’ve used it to cure a variety of ill-fitting parts that I have no choice with. It hasn’t let me down.
Just look for “Lion Head Shellac” now, as the name and logo changed in 2018. Some time this year the formula changed and it is now more transparent. I have not changed my application methods and I have not had any problems, but it is harder to see the evenness of applications.
Robbie _________________ Learn how your vintage VW works. And why it doesn't!
One-on-one tech help for your Volkswagen:
www.airschooled.com |
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Abscate Samba Member
Joined: October 05, 2014 Posts: 22573 Location: NYC/Upstate/ROW
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Posted: Sun Aug 18, 2019 3:41 am Post subject: Re: Chasing an Oil Leak - Gaskets? Seals? |
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Smitty,
Don’t be tempted and take your fan apart. Rebalancing it is a subtle task, possible but a pain.
Nice track down and jury rig on the seal replacement. _________________ .ssS! |
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smitty1976bus Samba Member
Joined: January 21, 2013 Posts: 369 Location: Cape Cod
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Posted: Sun Aug 18, 2019 7:17 am Post subject: Re: Chasing an Oil Leak - Gaskets? Seals? |
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Thanks for the tips guys! The books I have only vaguely mention these seals, they only reference them in pictures:
asiab3 wrote: |
Nice job getting in there and getting it done.
When the new fan seal arrives, it should not slide into the bore without a bit of work. Find a big-ass socket JUST smaller than the seal and use it as a drift to tap it in with a hammer. This is one time I would use a hardenening sealant like Permatex Aviation. Usually I would use non-hardening sealants like Curil, but if the seal just slides into place you’re going to need to hold it somehow. You might eventually have to order a custom seal for the bore. If this happens, let us know. We have rescources for stuff like this.
Make sure you spread a thin layer of anti-seize on the crank/fan hub junction. If your repair works you may not be in there for a long time.
Robbie |
Thank you! Yea, kind of worried that the new one will just slide in like this old one did; wish there was a vintage vw parts store near me, so didnt have to wait for the shipping.
timvw7476 wrote: |
There is an O-ring in there too, deep on the crank snout. |
Thanks for the head up on the o-ring, because I had no idea theres one in there. I can't even find where to buy a replacement, the only place seems to be:
https://vwparts.aircooled.net/Fan-Hub-O-ring-Type-4-Engines-021-119-125A-p/021-119-125a.htm
BusDepot doesnt seem to carry them, unless they only include them in the gasket sets..
TomWesty wrote: |
Wait a minute.... You took a sawzall to your fan hub? |
Nothing a sawzall cant fix |
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raygreenwood Samba Member
Joined: November 24, 2008 Posts: 21474 Location: Oklahoma City
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Posted: Sun Aug 18, 2019 7:23 am Post subject: Re: Chasing an Oil Leak - Gaskets? Seals? |
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asiab3 wrote: |
raygreenwood wrote: |
Indian head also works great with seals like this where the fit is difficult. You have to work fast on warm days though....that stuff tacks up and freezes fast. Ray |
Yes! I’ve used it to cure a variety of ill-fitting parts that I have no choice with. It hasn’t let me down.
Just look for “Lion Head Shellac” now, as the name and logo changed in 2018. Some time this year the formula changed and it is now more transparent. I have not changed my application methods and I have not had any problems, but it is harder to see the evenness of applications.
Robbie |
Oh man!...thanks for that info! I am working through a 3oz bucket of it. I would have had to really look when it was time to buy new.
The one thing about Indian head/Lion Head and similar....is that once you use it....it does not come off...so a re-do or reseal usually means at tear down time. Ray |
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SGKent Samba Member
Joined: October 30, 2007 Posts: 41031 Location: Citrus Heights CA (Near Sacramento)
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Posted: Sun Aug 18, 2019 9:17 am Post subject: Re: Chasing an Oil Leak - Gaskets? Seals? |
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might want to check those motor mounts while you are there. Leave the oil pump alone.
As said by others, find that O-ring because you need to replace it too. _________________ “Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin |
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ToolBox Samba Member
Joined: January 27, 2004 Posts: 3439 Location: Detroit, where they don't jack parts off my ride in the parking lot of the 7-11
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Posted: Wed Aug 21, 2019 9:43 am Post subject: Re: Chasing an Oil Leak - Gaskets? Seals? |
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[quote="smitty1976bus"
Thank you! Yea, kind of worried that the new one will just slide in like this old one did; wish there was a vintage vw parts store near me, so didnt have to wait for the shipping.
[/quote]
You don't need to wait.
Here is a list of seal and packing suppliers in your area. A good seal house will be able to supply the correct parts in minutes to you. |
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smitty1976bus Samba Member
Joined: January 21, 2013 Posts: 369 Location: Cape Cod
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Posted: Wed Aug 21, 2019 7:13 pm Post subject: Re: Chasing an Oil Leak - Gaskets? Seals? |
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Abscate wrote: |
Smitty,
Don’t be tempted and take your fan apart. Rebalancing it is a subtle task, possible but a pain. |
Good advice. Less work the better!
SGKent wrote: |
might want to check those motor mounts while you are there. Leave the oil pump alone.
As said by others, find that O-ring because you need to replace it too. |
Motor mounts are new; well probably 3 years old. Back when I put the motor into the bus... Back when i should have changed every single seal and gasket when the engine was out of the vehicle... If only I knew what i know now back then.
ToolBox wrote: |
You don't need to wait.
Here is a list of seal and packing suppliers in your area. A good seal house will be able to supply the correct parts in minutes to you. |
That's a good idea, theres alot around me too. I didn't even think of going to one of them, dang. Parts came in the mail today too, haha. |
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smitty1976bus Samba Member
Joined: January 21, 2013 Posts: 369 Location: Cape Cod
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Posted: Wed Aug 21, 2019 7:26 pm Post subject: Re: Chasing an Oil Leak - Gaskets? Seals? |
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Seals and o-ring came in the mail today
The crank seal look a little different than the original one.
But it seems to fit very nicely:
It doesn't just slide in, like the old seal did, which was a hug relief. Engine case is in good shape and looks like this seal will work. No need to add any shellac or sealers. Made a make-shift driver, since I had no large sockets to fit around the seal:
Took a little while, but the seal was driven in, flush with the metal:
Slide the new o-ring in, filled up the crevasse with oil (not sure if needed to be, or not, but thought it should be), and put the hub back on (with thread lock and torqued to 23 foot pounds)
And ta-da!
All done, and hopefully does the trick. Don't have enough time to button up everything tonight (dang days getting shorter). I'll have to finish up later and see if anything leaks out. |
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SGKent Samba Member
Joined: October 30, 2007 Posts: 41031 Location: Citrus Heights CA (Near Sacramento)
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Posted: Wed Aug 21, 2019 7:35 pm Post subject: Re: Chasing an Oil Leak - Gaskets? Seals? |
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good job _________________ “Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin |
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smitty1976bus Samba Member
Joined: January 21, 2013 Posts: 369 Location: Cape Cod
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Posted: Sun Aug 25, 2019 7:12 pm Post subject: Re: Chasing an Oil Leak - Gaskets? Seals? |
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Thank you!
Finaly was able to button it all up, spruced up the engine bay a bit:
And boom, no oil dripping!
Well.... not as fast anyways. Seems my engine just wants to leak oil. After the start up, after the repair, I blew a valve cover gasket. Maybe not blew it out, but it was leaking pretty bad from the drivers valve cover. (was fine before the repair) Replaced that, and all seems to be fine now. I don't know much about it, but could I have a high positive crank case pressure? I noticed that there's a lot of pressure coming out of my oil filler neck (had it off to check something). No idea whats normal though. Back to the research table! |
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aeromech Samba Member
Joined: January 24, 2006 Posts: 16926 Location: San Diego, California
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Posted: Sun Aug 25, 2019 7:45 pm Post subject: Re: Chasing an Oil Leak - Gaskets? Seals? |
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Glad I was able to help _________________ Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound |
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Savybosh Samba Member
Joined: February 26, 2011 Posts: 3 Location: Houston
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Posted: Wed Aug 04, 2021 1:19 pm Post subject: Re: Chasing an Oil Leak - Gaskets? Seals? |
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So how can you remove a stuck fan hub seal. Mine is way stuck, and at this point it's definitely been damaged enough to HAVE TO come out.
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telford dorr Samba Member
Joined: March 11, 2009 Posts: 3547 Location: San Diego (Encinitas)
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Posted: Wed Aug 04, 2021 1:33 pm Post subject: Re: Chasing an Oil Leak - Gaskets? Seals? |
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Slide hammer with a hook of some sort on it? _________________ '71 panel, now with FI
'Experience' is the ability to recognize a mistake when you're making it again - Franklin P. Jones
In theory, theory works in practice; in practice, it doesn't - William T. Harbaugh
When you're dead, you don't know you're dead. The pain is only felt by others.
Same thing happens when you're stupid. - Philippe Geluck
More VW electrical at http://telforddorr.com/ (available 9am to 9pm PST) |
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telford dorr Samba Member
Joined: March 11, 2009 Posts: 3547 Location: San Diego (Encinitas)
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Posted: Wed Aug 04, 2021 1:33 pm Post subject: Re: Chasing an Oil Leak - Gaskets? Seals? |
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(double post) _________________ '71 panel, now with FI
'Experience' is the ability to recognize a mistake when you're making it again - Franklin P. Jones
In theory, theory works in practice; in practice, it doesn't - William T. Harbaugh
When you're dead, you don't know you're dead. The pain is only felt by others.
Same thing happens when you're stupid. - Philippe Geluck
More VW electrical at http://telforddorr.com/ (available 9am to 9pm PST)
Last edited by telford dorr on Wed Aug 04, 2021 8:19 pm; edited 1 time in total |
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cmonSTART Samba Member
Joined: July 15, 2014 Posts: 1915 Location: NH
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mikewire Samba Member
Joined: March 22, 2010 Posts: 802 Location: San Antonio, TX
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Wildthings Samba Member
Joined: March 13, 2005 Posts: 50261
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Posted: Wed Aug 04, 2021 2:40 pm Post subject: Re: Chasing an Oil Leak - Gaskets? Seals? |
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Just be aware that all of these "T" shaped seal pullers are not created equal. Some are pretty flimsy. I hit a half dozen FLAPS and bought what looked to be the sturdiest puller. Sorry don't remember the brand at this point. |
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cmonSTART Samba Member
Joined: July 15, 2014 Posts: 1915 Location: NH
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Posted: Wed Aug 04, 2021 3:06 pm Post subject: Re: Chasing an Oil Leak - Gaskets? Seals? |
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I have a set of these too which work. The foot on them is a bit flatter, too, so less chance of damaging something. They don't always fit.
https://www.amazon.com/4pcs-Steel-Heel-Aligning-Ro...amp;sr=8-2 _________________ '78 Bus 2.0FI
de K1IGS |
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aeromech Samba Member
Joined: January 24, 2006 Posts: 16926 Location: San Diego, California
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Posted: Wed Aug 04, 2021 6:25 pm Post subject: Re: Chasing an Oil Leak - Gaskets? Seals? |
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[img][/img] _________________ Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound |
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