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airkooledchris Samba Member
Joined: January 25, 2005 Posts: 2710
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Posted: Tue Jun 04, 2013 12:57 pm Post subject: trials and tribs of buying used engines |
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a month back I picked up a used engine from a 79 bus, as a few months back I picked up a 79 bus with no engine. (well, no case, but it came with the heads and P&C from a few year old rebuild by a quality shop with quality parts)
Here is the used motor:
Ive been slowly cleaning it up to throw in this bus, and I decided to do the pushrod tube seals as a few of them were leaking.
I hadn't carefully inspected the underside of the motor yet, when I found my first snag:
First, the stud on the left is bent, so ill have to try and remove that one to replace it (or beat it back into shape, in place)
But that other stud, on the right in this shot, is broken off just before that staggered bit of threads would appear. There was about 2 turns of thread barely showing on there, so I stuck a nut on there and smeared some JB Weld onto it. Im assuming that i'll just end up spinning the nut free of the JB Weld when I try it, so how the H do I extract that stud from the head with no threads showing? have someone come over and weld the nut to the stud and then try wrenching it off?
I figured I may as well start the pushrod tube seals while I figure out what to do with this exhaust stud, and that's when I noticed this hiding under the rocker assembly:
my heart sank when I saw this. it's probably a whole GEX motor, or at the very least one of their heads. it's too bad since the motor is actually pretty clean otherwise. now im half tempted to just pull these stupid heads and swap on the known good ones I have in a box on the shelf. Maybe even swap out the P@C while im at it with the other set from the good build. Both motors were from 79 busses, so they both have hydraulic lifters and matching cam. |
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fastfil Samba Member
Joined: November 25, 2006 Posts: 356 Location: Sunshine Coast, AUS
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Posted: Tue Jun 04, 2013 1:33 pm Post subject: |
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Can you get a small pipe wrench onto it? There are also stud removal sockets that work great for jobs like that. Probably a wise investment for working on 30+ yo motors.
Don't forget to give it some hearty taps with hammer on the top of the stud to help break the thread's bite (if you don't have heat). _________________ "...swingaxle...transaxle...same diff." |
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Mal evolent Samba Member
Joined: March 31, 2009 Posts: 2912 Location: San Antonio, Nuevo Mexico
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Posted: Tue Jun 04, 2013 2:39 pm Post subject: |
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if you have the nut welded to the head the stud will get vwery hot and expand. when it gets cool it will contract more than the aluminum and come out very easy. _________________ 73 Beetle Baja, Ghia front brakes, Type 3 rear brakes, 2220 ( 94 X 80 ), Weber Progressive, Bosch SVDA, '97 Mustang seats
Baja Bugs for Volkswagen Virgins: Index |
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airkooledchris Samba Member
Joined: January 25, 2005 Posts: 2710
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Posted: Wed Jun 05, 2013 11:09 am Post subject: |
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Pipe wrench didn't fit well, and the smoothness of the stud without threads was impossible to get a tight enough grasp onto.
Ive been hitting it with penetrating fluid for a few days now.
I finally went out and hacksawed a slit in it and then used my impact screwdriver and the BFH to back it out 1/8th of a turn at a time. Once I was about halfway out I could just muscle it the rest of the way with my big screwdriver.
It was such a release to finally get that sucker out of there - it was like I finally had a BM after a week of being plugged.
AHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH |
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Cusser Samba Member
Joined: October 02, 2006 Posts: 31361 Location: Hot Arizona
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Posted: Wed Jun 05, 2013 11:58 am Post subject: |
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airkooledchris wrote: |
It was such a release to finally get that sucker out of there - it was like I finally had a BM after a week of being plugged.
AHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH |
Thank you for the full disclosure. _________________ 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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scotth17 Samba Member
Joined: January 30, 2012 Posts: 335 Location: Bedford Texas
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Posted: Wed Jun 05, 2013 1:39 pm Post subject: |
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Be sure to wipe well.... |
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vw57drvr Samba Member
Joined: October 23, 2005 Posts: 1705 Location: Rome, Ga
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Posted: Wed Jun 05, 2013 1:49 pm Post subject: |
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Those type IV engines are tough. I wouldnt discount it yet just because GEX had a hand on it. They probably just put fresh bearings and rings in it and sent it on its way. _________________ 60 Rock Grey Vert |
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