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Loose cylinder liner
Posted: Wed Feb 04, 2015 1:50 pm
Author: sprint
In the process of doing a strip and rebuild of my A4. Have the barrels off and have noticed that I can push the No 1 liner in and out by hand?
Is this a common problem with these engines?
Was planing to smear some Loctite bearing around the sleeve and push it in again, is that OK and best thing to do?
Posted: Wed Feb 04, 2015 2:00 pm
Author: z1bman
i would coat it in three bond that way it will be sealed from oil working its way between the liner & the barrel. the head will stop it moving once it is fitted in place
Posted: Wed Feb 04, 2015 2:28 pm
Author: sprint
Thanks.
Have never heard of three bond? Is there a specific type/version I need?
Posted: Wed Feb 04, 2015 4:11 pm
Author: zed1015
Loose liners are common.
Shouldn't cause too much bother as the liner can't move once the heads bolted on.
You should be able to buy liner bond from a local engine reconditioners or online etc.
This stuff -
http://www.permatex.com/products-2/prod ... ner-detail
Posted: Wed Feb 04, 2015 5:16 pm
Author: z1bman
Posted: Tue Feb 10, 2015 9:23 am
Author: Garn 1
Let me tell you of a stupid thing I once did. Fitted new liners. I noticed that they were all protruding about five thou. Not to worry I thought!
The head gasket will effect a better seal when the head is pulled down.
What did I forget.....?
Sure it effected a better seal around the liner tops, however, it did not effect a seal on the four corners of the block.. where the oil comes thru to the head.
Stupid mistake!
RegardZ.