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Old 03-06-2008, 09:38 AM   #1
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Default Engine end float questions.

On a 1200 cc engine should i be able to feel a bit of end float on the crank or not? Can the end float be measured in situe and if so what is acceptable?
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Old 03-06-2008, 09:46 AM   #2
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You should be able to feel it but not see it. 0.07 - 0.13mm is acceptable.
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Old 03-06-2008, 10:49 AM   #3
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If it's a used engine , ie full of oil; as a rule of thumb, if you can feel the end play you probably have too much.
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Old 03-06-2008, 11:07 AM   #4
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So what happens if the end float is too big then?
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Old 03-06-2008, 11:26 AM   #5
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You measure the float (best with a dial gauge if you have one or can borrow one) and adjust with shims under the flywheel on the crankshaft to correct it. you should only use 3 shims; they can be bought in various thickness. Replace the "O" ring in the flywheel recess at the same time.
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Old 04-06-2008, 09:17 AM   #6
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I,ve measured about 0.25 mm end float. What damage will i cause if i run with this?
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Old 04-06-2008, 09:40 AM   #7
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Thats over the allowable amount, but not massively so. Re-shimming may well help, but its not the shims thats worn, its the case (bearing thrust face). At .25 endfloat, I'd say you'll get a fair few thousand miles out of her yet, but it will slowly increase as crank pounds back and forth. Personally, if its not a daily driver I'd just use it for now, I daresay there's a lot of vw's out there running more endfloat than that.
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Old 04-06-2008, 09:44 AM   #8
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Quote:
Originally Posted by Ping View Post
I,ve measured about 0.25 mm end float. What damage will i cause if i run with this?
You will pound out the thrust on the case and then you will need to rebuild the motor and have the case thrust cut, if it goes to deep the case will be junk. We just took apart a case that had this issue and the bearing collor came off when we took the flywheel off. Fix it now before it gets worse how it is still cheap to fix.
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