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 Dozza
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| posted on July 22nd, 2005 at 11:12 AM |
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Stubborn Oil Leak!!!????
Hoping someone can help me....
1600 Kombi engine.
Oil leaking from very common place, where the engine meets the gear box, right in the middle at the bottom, beteen the studs.....
Took the engine out, changed the flywheel seal and O ring.... still leaking!
There isnt much end play in the motor? Where could it be coming from and how can I stop it......
Cam plug? dont know much about this?? can it be fixed if its coming from there?
Gearbox oil? could it be coming from there//.....?!!!
HELP please...............:sandrine
Low Slow and Cruising
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General_Failure
A.k.a.: Tristan
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| posted on July 22nd, 2005 at 11:53 AM |
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Gearbox oil is thinner, and tends to be greyish when it finds its way out. Honey if its new of course.
That is a nasty little problem you have there my friend.
How bad is the oil leak?
If it's bad enough to be noticable, may I suggest pulling out the oil filler in the transmission (when cold!) and sticking your little finger in. If
you cover your finger in oil you need more. If not then it's not the transmittion.
If you need more oil, top it up, and then recheck later to see if it's leaking.
How much oil does your motor use normally? any usage spikes recently?
If at first you don't succeed. Build, build again.
Vehicle: 1975 Special order delivery walkthrough panel based LCA pop-top camper. Motor: Nippon 1.8L Single port Wasserboxer, Transmission: 3 rib 002.
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ragged
A.k.a.: David
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| posted on July 22nd, 2005 at 12:50 PM |
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Quite possibly a cracked case! Remove the flywheel and inspect behind the flywheel on the oil cooler side of the crank case for a verticle crack.
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 Bizarre
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| posted on July 22nd, 2005 at 01:37 PM |
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| Quote: | Originally
posted by Dozza
There isnt much end play in the motor?
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what do you call not much??
3 thou???
Can you feel it??
Should only be able to feel it.
there is a drain back hole near the seal - is that blocked?
any burs on the shimmecutting the seal??
Futue te ipsum!!!
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Kombi_Rescue
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| posted on July 22nd, 2005 at 05:44 PM |
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try this quick tip ...when flywheel is removed splash the case with lavish amounts of talcom powder......blow off the excess and sit back and
watch...if the case is cracked a oil line will appear thru the talc..if there are no lines the case is ok....try and do this as soon as the engine is
pulled..ps degrease the troubled area first ,then apply the talc when its dry..cheers steve
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Old Dubber
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| posted on July 22nd, 2005 at 05:53 PM |
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Dozza
| Quote: |
Took the engine out, changed the flywheel seal and O ring
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Was there a good surface where the oil seal runs?
or was it grooved?
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karmen
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| posted on July 22nd, 2005 at 06:00 PM |
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heah check that lip on the flywheel dozza
lucky u not in London mate..
Karmen
56 oval resto 60 Cal KG
58 & 62 beetle parting. 74 panel parting
63 Baja 80 GLD parting
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Dozza
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| posted on July 22nd, 2005 at 08:43 PM |
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Thanks guys....
Karmen... Yeah I am not in London, lots of friends there though..... I know someone who has a friend that was killed! I think a lot of people in
London were expecting it though...
..................................
Will try the talc idea when I get the engine out....
Surface was good around the oil seal..... dont think it is that...
Wouldnt there be more oil leaking if thew case was cracked? The leak isnt that bad, say 5, 10 drops after the engine is cut
Can it be fixed if its cracked, or is that a silly question, already recently changed this motor for a one with a crack in the case by the oil pump!
Low Slow and Cruising
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ancientbugger
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| posted on July 22nd, 2005 at 09:34 PM |
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I had this on a type 1 case, had the engine in and out half a dozen times replacing the oil seal, checking it again and again and it ended up being a
cracked case that only leaked when hot.
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Special Air Service
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| posted on July 23rd, 2005 at 08:53 PM |
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If the groove that the "o-ring" sits in is not spotlessly clean you can get a leak from there. It happened to me, took engine out to fix oil leak
(main seal), back in to find a worse leak, back out cleaned groove spotless and no more leaks. Im talking O-ring not main seal.
Cheers
SAS
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Grey 57
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| posted on July 23rd, 2005 at 09:21 PM |
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Another thing to check is that the fly wheel shims have not cut a groove in the crank shaft. It is possible for the shims to cut a groove down to the
flywheel dowels and cause oil to leak out the dowell holes. You cannot repair this. Crank is junk basically.
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karmen
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| posted on July 23rd, 2005 at 10:43 PM |
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carn't ya redrill and increase dowel size Grey?
you can also remove the wire spring inside the seal and cut of a few mms and rejoin it to icrease the tension, be careful - i would check the run of
the seal by hand on the actual flywheel.
I imagine you could carefully put water in the seal , to the top of the rim of seal----to see if it leaked through while it sits on the horizontally
positioned flywheel
Karmen
56 oval resto 60 Cal KG
58 & 62 beetle parting. 74 panel parting
63 Baja 80 GLD parting
58 donor split 11 window 63 Splitty sgle cab /son's
96 Seat Cordoba GLX daily drvr.
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Grey 57
A.k.a.: Dean
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| posted on July 23rd, 2005 at 10:53 PM |
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No you cant re-drill. The cut will be thru the outside of the crank down thru the dowel holes. Where the seal and shims sit.
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Grey 57
A.k.a.: Dean
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| posted on July 23rd, 2005 at 10:56 PM |
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No you cant re-drill. The cut will be thru the outside of the crank down thru the dowel holes. Where the seal and shims sit.
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karmen
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| posted on July 24th, 2005 at 09:25 PM |
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any pics to explain grey 57 i was talkin of loose dowel situa'n OR elongated holes in the flywheel Dozza!
but should have quoted hay
cheers
Karmen
56 oval resto 60 Cal KG
58 & 62 beetle parting. 74 panel parting
63 Baja 80 GLD parting
58 donor split 11 window 63 Splitty sgle cab /son's
96 Seat Cordoba GLX daily drvr.
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Dozza
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| posted on July 25th, 2005 at 07:41 AM |
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You guys..... I am a little confused now.....:duh
Low Slow and Cruising
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karmen
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| posted on July 25th, 2005 at 08:18 AM |
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ok, a groove can be worn on the flywheel from the actual seal connection esp if the seal is old and HARD.
2ndly if the fywheel has been loose the dowelholes into the crank can be elongated causing some oil to seep -make sure there is no gaps
Karmen
56 oval resto 60 Cal KG
58 & 62 beetle parting. 74 panel parting
63 Baja 80 GLD parting
58 donor split 11 window 63 Splitty sgle cab /son's
96 Seat Cordoba GLX daily drvr.
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Grey 57
A.k.a.: Dean
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| posted on July 26th, 2005 at 08:10 AM |
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Its not from the seal , its from the big round shims that are used to set the end float on the crank. These are between the flywheel and the shoulder
on the crank. If the flywheel loosens slightly these shims start to rotate on the crank and can cut a trench thru into the dowel holes. You would see
the damage straight away when you inspect the crank.
If your dowel holes are elongated then its probable that the flywheel has become slightly loose.
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