Problem with Timing
31-03-2007, 08:51 PM
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Problem with Timing
replaced the head gasket along with a new head today, and had a very stressful 4 hours trying to time the engine up. basically done the normal procedure (match up the TDC with marks on camshaft and lower pulley) BUT when it comes to putting the belt on its a nightmare, put the belt on pulling the right side up to make it tight but the belt doesnt seem to fit on the teeth of the camshaft pulley tight only way it will fit tight is by moving the camshaft a bit but if i do this the timing is completly out, tried so many other options but every time i did 2 revolutions and checked the TDC position they both didnt match up 
anyone know what could be the problem?
are pulleys different because the old 1 i had reads AA and the one on the new head is something like AX but both are standard items.
anyone know what could be the problem? are pulleys different because the old 1 i had reads AA and the one on the new head is something like AX but both are standard items.
31-03-2007, 09:09 PM
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Originally Posted by Rick
The pulleys ARE DIFFERENT!!!
You Should have a KA pulley - the others u have a wrong!
You Should have a KA pulley - the others u have a wrong!
31-03-2007, 09:10 PM
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Originally Posted by Christian and Beccy
Head height? Had one of the heads been skimmed more than the other?
31-03-2007, 09:43 PM
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yes, specially for RST. The keyway spacing etc is different, it runs slighly retarded cam timing. Don't expect it to line up perfectly - within half a tooth is fine.
31-03-2007, 09:55 PM
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Originally Posted by Rick
yes, specially for RST. The keyway spacing etc is different, it runs slighly retarded cam timing. Don't expect it to line up perfectly - within half a tooth is fine.
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31-03-2007, 10:42 PM
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I don't know your area...
But, the pulley u have should still work. If it's less than a tooth out it won't harm the engine. If it's on a dizzy still, then u may have to swing it to get her idling properly, but i doubt it. Use that till you source a KA.
But, the pulley u have should still work. If it's less than a tooth out it won't harm the engine. If it's on a dizzy still, then u may have to swing it to get her idling properly, but i doubt it. Use that till you source a KA.
01-04-2007, 07:42 AM
#9
Originally Posted by BlueFiesta85
Originally Posted by Rick
yes, specially for RST. The keyway spacing etc is different, it runs slighly retarded cam timing. Don't expect it to line up perfectly - within half a tooth is fine.
03-04-2007, 12:31 AM
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Originally Posted by Rick
The pulleys ARE DIFFERENT!!!
You Should have a KA pulley - the others u have a wrong!
You Should have a KA pulley - the others u have a wrong!
03-04-2007, 01:58 PM
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Ah ok.
I believe his problem is with the leading edge of the belt though, i doubt it'd be the tensioner! Head my have been skimmed laods like Christian said.
Still waiting on Ricks reply aswell
I believe his problem is with the leading edge of the belt though, i doubt it'd be the tensioner! Head my have been skimmed laods like Christian said.
Still waiting on Ricks reply aswell
03-04-2007, 02:56 PM
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Just chatted to Rick and discussed what i wanted to confirm.
Being as all of the pulleys give the cam slightly different timing the timing mark on the head will never be 100% spot on, you will have to spin the cam FRACTIONALLY to get the belt in the teeth, but it should be easily visible which teeth are closest lining up
But as Christian has said, an over skimmed head will make this worse, being as each time its skimmed it makes the cams timing fractionally out.
Being as all of the pulleys give the cam slightly different timing the timing mark on the head will never be 100% spot on, you will have to spin the cam FRACTIONALLY to get the belt in the teeth, but it should be easily visible which teeth are closest lining up
But as Christian has said, an over skimmed head will make this worse, being as each time its skimmed it makes the cams timing fractionally out.
03-04-2007, 07:57 PM
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cheers guys for the info, i changed the pulley over to a KA one like Rick suggested and yes the belt went on straight without having to move the cam out a bit so that was good news, also had it tunned up at power engineering, the dizzy had to be altered to get the timing right but apart from that the cars running sweet now
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