Need Help: Timing Belt Swap

Cookiemonster · Post by **Cookiemonster** » Mon Jul 02, 2007 8:45 am

Using 2nd hand cam belts isn't going to help.

Post by **Alspos** » Mon Jul 02, 2007 8:59 am

Take the top plastic cover off from over the cam. Check the belt and make sure it's still tight. Turn the engine over and look for the cam moving. Also check teeth for being mangled. I doubt this is your problem though.

oped · Post by **oped** » Mon Jul 02, 2007 9:57 am

Yeh it had the cam belt replaced when i got the new motor as the last one seized and shredded the old one. The tensioner was alright, same with the cam pulley alignment and all the pulleys spun freely. Not sure if the cam was bolted on too tight.

Yeh when i went back to it, the belt was still tight and of what i could see of the belt it seemed fine

Post by **Alspos** » Mon Jul 02, 2007 11:13 am

You can't do the cam up too tight.

Put crank on 0 timing mark and see if cam is in the correct spot.

Start checking spark and fuel. Then electrical connectors.

oped · Post by **oped** » Mon Jul 02, 2007 12:06 pm

Ill get my mate to tow it to my house after he finishes work tonight, and ill have a look at it tomorrow and report back

The thing is that everything was fine, ran out of petrol, put petrol in, car was almost starting, as it was turning over and almost running, but as soon as we went to push start it when i dropped the clutch the wheels locked up for half a second then it just rolled freely and thats when i think the cam belt destroyed

JPC · Post by **JPC** » Tue Jul 03, 2007 2:33 am

oped wrote:as soon as we went to push start it when i dropped the clutch the wheels locked up for half a second then it just rolled freely and thats when i think the cam belt destroyed

That doesn't sound like a belt problem. If it's rolling freely while you're in gear and the clutch is engaged, it's likely to be one of:

(a) very low compression
(b) something broken in the drivetrain - clutch, gearbox, etc

oped · Post by **oped** » Tue Jul 03, 2007 11:09 am

I took the top cover off the cam belt cover and when i tried to start it the cam belt didn't spin at all. Thats why i mostly assume its the cam belt

Post by **Alspos** » Tue Jul 03, 2007 12:47 pm

Pretty fair assumption.

You may not have done the tensioner up tight enough or it's stuck.

Or something else really nasty is eating belts.

Can you pull the belt out? i.e. is it broken?

oped · Post by **oped** » Tue Jul 03, 2007 1:23 pm

I couldnt pull it out, and it doesnt seem loose, may be stuck. I should be bale to get my car home today to look at it

JD_Stazza_Brendan · Post by **JD_Stazza_Brendan** » Tue Jul 03, 2007 2:48 pm

Something stopping the cam itself from spinning, like seised??

Scorp16 · Post by **Scorp16** » Tue Jul 03, 2007 7:51 pm

my money is that the belt has striped the teeth off, pretty common.

oped · Post by **oped** » Tue Jul 03, 2007 10:08 pm

Right on the money Scorp16, yeh the belt stripped up like crazy... I cant believe it, 3rd belt ive been through in under a year...
Flav came down and saved my ass and fitted the belt in about 5mins flat... pro.

Hopefully this one will live longer, its a brand new one from Bursens

VR4JA · Post by **VR4JA** » Tue Jul 03, 2007 10:13 pm

my old sohc spun a cam bearing which also momentarily stopped the cam from spining chewing a few teeth clean off ... we whacked on a new timing belt and it went for another 1700k's before taking it off the road.. for the complete overhall

JPC · Post by **JPC** » Wed Jul 04, 2007 2:13 am

oped wrote:I took the top cover off the cam belt cover and when i tried to start it the cam belt didn't spin at all. Thats why i mostly assume its the cam belt

Can you see the crank pulley spinning?

Austarion

Need Help: Timing Belt Swap

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