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how can u tell if timing is off(driving wise)? t-belt q 700 1991

so i just replaced the T-belt on my volvo and when reinstalling i had a few probs and questions. well i think i got mine on off by one tooth on the cam or crank gear. which is 6deg on the cam and 12 on the crank ... SO ... if i had the timing retarded by 6 deg on the cam gear how would i be able to tell? all te marks for the belt seem to line up but i'm just not 100% sure because i can't really find the mark on the crank.

so i drove the car around and it 'feels' a little laggy slower than norm, that's y i think the timing is off, i figure if it was advanced i'd feel/hear the motor detonate when i get into boost and i dont' get any of that so i'm thinking it must be retarded unless its just me wishing my car was faster haha...

so hm well ... will mpg be affected if the timing was retarded by 6 deg? if so by how much? when i start the motor it seems to take a few more turns to turn over than normally, but that could just be because i'm doing it on a cold motor when its cold out(my plugs are 2 ranges colder so it takes a little longer normally to start when cold).

anyidea's? car rev's fine, doesn't really even feel laggy untill its in gear and i get the on gas .... ha i figure might as well just crank up the boost a bit more if its off by 6deg, that way less to worry about detonation








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how can u tell if timing is off(driving wise)? t-belt q 700 1991

It is NOT OFF on the crank gear!

The ONLY ONE you need to worry about is the camshaft. Take off the camshaft timing belt cover.

Line the crank pulley to zero (rotate it until the camshaft mark also goes to, or just adjacent to zero). Is the camshaft pulley timed properly?

***note that we are assuming that your crankshaft pulley is accurate, because they can slip sometimes. That's why you always verify the crank sprocket position, and then briefly slip the timing cover over and put the pulley on for a brief moment--to see if they are the same. If it had slipped somewhere, then you could be totally hosed unless you pull off the pulley, lower cover, and compare the index marks on the little sprocket, and oil seal housing. Then you'll know for sure.

But let's say they ARE the same--your crank is therefore zero anytime you turn it to the 0 mark on the timing cover. The intermediate shaft on your particular car is of little consequence, so never mind that.

IF the camshaft is not lined up, loosen and compress the tensioner. Make sure the crank stays on 0, and move the camshaft until it is lined up with the mark. Then slide the belt back on and your car is timed.

Performance wise it won't run right with the belt off. USually lacking power or surging a lot, perhaps worse in the case of a B230F. I've never driven a B230F with a jumped belt, although I've driven other cars with them and it's usually a very distinctive feeling.

It's possible that you knocked the airflow meter harness or something like that too, or maybe you didn't get the intake/turbo hoses on all the way. Or something. You'll find it. Timing the engine is pretty much a yes/no thing. Also, trying to determine it from the spark plug hole is almost impossible without instruments.
--
Chris Herbst, in Wisconsin.








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how can u tell if timing is off(driving wise)? t-belt q 700 1991

w/ the crank @ zero i got this

i've talked w/ a friend who know's a LOT about belts and had him help me .. and well ... from what we keep thinking everything is on right ... and its just me wishing my car was quicker ... but it feels right ... there is no surging or anything under load taht would throw me off .. i guess i'll go out today and test it in 3rd gear to see if there is any knock.











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how can u tell if timing is off(driving wise)? t-belt q 700 1991

hehehehe... you need a better digital camera ;)

--
1980 244DL, 1982 245GL, 1987 744GLE, 1991 245SE, 1996 855GLT, 2001 V70








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how can u tell if timing is off(driving wise)? t-belt q 700 1991

lol quiet ... i know ... i'm trying to save up to buy one







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