Technical re-timing following cam belt failure

s and b · May 9, 2014

It snapped in the fast lane of the A34 ! My wife was driving at about 50/60mph.

throw it away then
ive wasted ink on my keyboard saying wack a belt on too

Colin Harrison · May 9, 2014

Thanks a lot for this info - but, I'm not sure it's enough. Lining up the crank is okay but it could be in that position twice during the 4-stroke cycle. Let's assume when the crank is lined up with the timing marks piston 1 is at top dead centre, that could be at the end of the compression stroke or the end of the exhaust stroke. For the compression stroke I would need to time the camshaft so the valves are shut, for exhaust I would need the exhaust valve open. Essentially, the crank has lost it's position! Do I need some device to enable me to read the crankshaft position sensor output? Then I would know which part of the cycle it thinks it's on when I line it up with the timing marks. Does that make sense?

stephenbebop · May 9, 2014

Its the cam that gives it the right stroke not the crank

AndyRKett · May 9, 2014

s and b said:
throw it away then
ive wasted ink on my keyboard saying wack a belt on too

:yeahthat:

if at that speed and the belt has completely gone the engine is toast.

varesecrazy · May 9, 2014

Colin Harrison said:
Thanks a lot for this info - but, I'm not sure it's enough. Lining up the crank is okay but it could be in that position twice during the 4-stroke cycle. Let's assume when the crank is lined up with the timing marks piston 1 is at top dead centre, that could be at the end of the compression stroke or the end of the exhaust stroke. For the compression stroke I would need to time the camshaft so the valves are shut, for exhaust I would need the exhaust valve open. Essentially, the crank has lost it's position! Do I need some device to enable me to read the crankshaft position sensor output? Then I would know which part of the cycle it thinks it's on when I line it up with the timing marks. Does that make sense?

PM me, as I'm not too far from you ( the A34)

and I've got the relevant paperwork,

I'm even in need of Punto parts if it's beyond repair..

charlie

varesecrazy · May 10, 2014

I suspect the Marea, and Multi's had the same 1.9 JTD unit (at the turn if the century),

the multi section has some good "hands-on" people,:worship:
whereas the punto2 is pretty light on JTD info

this is a bargain..!!http://www.ebay.co.uk/itm/LINDSAY-P...es_Manuals_Litterature_ET&hash=item19ecf65f7a

charlie

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