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Timing Belt Adjustment[200/1985] posted by David Hussain on
Monday, 9 August 1999, at 8:56 a.m.
Has anyone managed to fit a timing belt on an OHC engine and get it one
notch out?
After fitting a new head gasket and re-assembling my 240 B23E, the engine
doesn't run particularly well. (It actually ran better with a blown gasket) It did, however, start first time.
I have check all fittings and hoses and was wondering if I may have got the belt out by one notch. I checked the settings by aligning the marks etc when I assembled it so it should be OK.
David
Re: Timing Belt Adjustment[200/1985] posted by Mike W. on
Monday, 9 August 1999, at 10:20 a.m.
David: Actually, it's pretty easy to get things off by a notch, or even two! The intermediate shaft which drives the distributor has little or no resistance, so this is the one which is usually off. You pretty much have to take everything apart and start over to correct it. If you're using a genuine Volvo replacement belt, there are lines painted on the belt itself to help you line things up. There are diagrams in the Haynes manual and/or in the IPD catalog which may help you. Retime the engine after you're done; retension the belt after 600 miles or so and check the timing again then.
--Mike W., '85 245DL 209K, '87 245DL 109K, Largo, FL
Re: Timing Belt Adjustment[200/1985] posted by Don Foster on
Monday, 9 August 1999, at 2:12 p.m.
David --
Yep, done that. :) I got the cam one tooth off, but the I-shaft was timed, so ignition was timed. ('83 B23F LH.)
Car started and drove fine around town, but on the highway it lost power accelerating beyond 50 mph.
Amazing how over confidence can lead to a red face.
Monday, 9 August 1999, at 11:17 p.m.
David,
For what its worth, check your timing marks again, and make sure they are lined up, if not, and it sounds like they might not be. Loosen belt and re-adjust. Now after you have re-adjusted, turn the engine over by hand (i.e. socket on crank bolt) a couple of times and double check to make sure the timing marks are aligned with the appropriate pointer/mark. Once you do this, you know for sure that everything is lined up correctly. Also, make sure you rotate the engine in its direction of rotation. Good luck.
--Mike