WestfieldSEI
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| posted on 18/9/09 at 03:39 PM |
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Crossflow Problems
I am just rebuilding my crossflow and have hit upon a problem with the crankshaft pulley.
It slides onto the shaft fine but when I torque up the centre bolt the pulley flanges tightens up against the block/sump.
This is a 711 1600 block, everything is standard including the pulley (pressed steel type). I cannot work out how the crankshaft can have moved
towards the clutch or whether there was a spacer inside the pulley nose to space it away from the block/sump.
Any answers gratefully received...
cheers
James
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Marcus
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| posted on 18/9/09 at 04:30 PM |
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Sounds like an endfloat issue to me..
Have you replaced the main bearings?
One of the end ones (can't remember which) controls the crank endfloat. If the crank is too far back in the block, the pulley will foul the
block / sump.
Don't know if this is any help, but I can't think of anything else which would cause this....
Marcus
Because kits are for girls!!
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WestfieldSEI
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| posted on 18/9/09 at 04:32 PM |
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well thats what I was thinking, but quite sure there is no endfloat and that thrust washers are in correct place...
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MikeRJ
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| posted on 18/9/09 at 04:57 PM |
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Is the timing chain cover straight and bolted down fully?
The crank pulley butts up against the sprocket that drives the camshaft and the large "oil thrower" washer; is this washer definitely
fitted?
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WestfieldSEI
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| posted on 18/9/09 at 05:04 PM |
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hmmm
good question, i'll make sure....
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prawnabie
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| posted on 18/9/09 at 05:24 PM |
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Your not using a FWD timing case are you by any chance?
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rusty nuts
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| posted on 18/9/09 at 05:25 PM |
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Did you strip the engine? was it OK before stripping? What parts have you changed? Would recommend NOT using the pressed steel pulley as they self
destruct although it shouldn't cause any problems with assembly. I have a spare pulley somewhere that I can measure if it helps
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WestfieldSEI
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| posted on 19/9/09 at 01:00 PM |
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okay its sorted, the problem was quite obvious once i realised what it was. The pulley I was using looks as though its been in 'pushed
back' as might happen in a frontal smash. I compared to another pulley I had on a spare engine and the difference was obvious. I fitted the
spare pulley and all is well!
Thanks for the suggestions
James
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