Friday night Diesel fun - Page 4

Laird Scooby · Oct 25th, 2020, 11:47

Would really need to see the other valve clearances to comment but yes, it's highly likely this is the cause of your low compression. What's worse is if they haven't checked the clearances or used the wrong figures for them, chances are they're all wrong. If they're all wrong by the same factor then i'd suggest they thought they were using Imperial gauges and converted to Metric on the basis of 2.54mm = 0.1" which isn't the right conversion for this as it's too large but works out if done correctly. I suspect they converted the wrong way.

volvo-express · Oct 27th, 2020, 18:26

Hi,

I was.on the D24T.COM site and got a good tip from member there.

I ended up oiling the piston rings ....left oil in bore over night and put back together and works perfect again.

Laird Scooby · Oct 27th, 2020, 18:35

I kind of assumed you would already have done that. What oil did you use?

Oct 25th, 2020, 11:47	#31
Laird Scooby Premier Member Last Online: Apr 15th, 2024 09:22 Join Date: May 2012 Location: Lakenheath	Would really need to see the other valve clearances to comment but yes, it's highly likely this is the cause of your low compression. What's worse is if they haven't checked the clearances or used the wrong figures for them, chances are they're all wrong. If they're all wrong by the same factor then i'd suggest they thought they were using Imperial gauges and converted to Metric on the basis of 2.54mm = 0.1" which isn't the right conversion for this as it's too large but works out if done correctly. I suspect they converted the wrong way. __________________ Cheers Dave Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........

Oct 27th, 2020, 18:26	#32
volvo-express Master Member Last Online: Apr 20th, 2023 21:16 Join Date: Jul 2007 Location: St Neots, Cambs.	Working again Hi, I was.on the D24T.COM site and got a good tip from member there. I ended up oiling the piston rings ....left oil in bore over night and put back together and works perfect again. __________________ 1991 940 TD - straight six turbo diesel - some people hate them I love them!

Oct 27th, 2020, 18:35	#33
Laird Scooby Premier Member Last Online: Apr 15th, 2024 09:22 Join Date: May 2012 Location: Lakenheath	I kind of assumed you would already have done that. What oil did you use? __________________ Cheers Dave Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........

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