Crankshaft pulley needed please

Crankshaft pulley needed please

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Discussion

Tyre Tread

Original Poster:

10,525 posts

215 months

Tuesday 21st April 2015
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V8 Junkie said:
Sorry about that, It,s amazing what they can do sorted the imbalance out insitucool
No apologies necessary.

Can I ask what thge issue was with yours please?

V8 Junkie

101 posts

236 months

Tuesday 21st April 2015
quotequote all
Bad idle, engine leaping around a bit,eek Had tried to tune it out to no avail(Previous owner had installed a stroker kit to the 302c.i engine which increased the c.i to 5.7).
Drove it up and spoke to Steve and booked it in. He took out the imbalance (which there was a lot!) in situ by removing and adding metal from the Flywheel and damper and pulleys and gave me a graph showing the difference.

I was very impressed with the difference the car drove really well after his attentionsmile Impressive state of the art equipment and expert knowledge

Tyre Tread

Original Poster:

10,525 posts

215 months

Tuesday 21st April 2015
quotequote all
ah right so probably no good for me as I have already run the engine without ancilliaries and had all moving parts balance. The pistons are within half a gram of each other as are the con rods.

It should be as smooth as silk as everything that moves had been balanced and its definitely an engine issue not transmission.

davep

1,141 posts

283 months

Tuesday 21st April 2015
quotequote all
Tyre Tread said:
ah right so probably no good for me as I have already run the engine without ancilliaries and had all moving parts balance. The pistons are within half a gram of each other as are the con rods.

It should be as smooth as silk as everything that moves had been balanced and its definitely an engine issue not transmission.
If the engine is internally balanced is the harmonic balancer/pulley assembly neutrally balanced? Is the harmonic balancer the rubber type, if so check the integrity of the seals between the outer ring, the rubber and the central core. The outer ring on mine was sliping slightly which showed up during ignition timing adjustments.

Tyre Tread

Original Poster:

10,525 posts

215 months

Tuesday 21st April 2015
quotequote all
davep said:
If the engine is internally balanced is the harmonic balancer/pulley assembly neutrally balanced? Is the harmonic balancer the rubber type, if so check the integrity of the seals between the outer ring, the rubber and the central core. The outer ring on mine was sliping slightly which showed up during ignition timing adjustments.
Checked, substituted and not the problem but thanks.

TVaRt

364 posts

221 months

Wednesday 22nd April 2015
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My latest plan if the balancer is buggered is to change it, but retain the metal back plate with weights. Theory being the balancer is err... balanced, and the back plate if not changed in orientation will keep the offset of weights correct.

If this doesnt work i may call in the balance experts to balance in situ, i dont want to have to strip the engine down just to balance the crank.

TVaRt

364 posts

221 months

Wednesday 22nd April 2015
quotequote all
V8 Junkie said:
Bad idle, engine leaping around a bit,eek Had tried to tune it out to no avail(Previous owner had installed a stroker kit to the 302c.i engine which increased the c.i to 5.7).
Drove it up and spoke to Steve and booked it in. He took out the imbalance (which there was a lot!) in situ by removing and adding metal from the Flywheel and damper and pulleys and gave me a graph showing the difference.

I was very impressed with the difference the car drove really well after his attentionsmile Impressive state of the art equipment and expert knowledge
Can i ask what kind of cost that was?

V8 Junkie

101 posts

236 months

Wednesday 22nd April 2015
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Can,t remember I.m afraid it was a few years ago. I remember being pleasantly surprised, after thinking the engine might need removal and stripping down to rebalance the rotating assembly.

TVaRt

364 posts

221 months

Wednesday 22nd April 2015
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No problem. I have emailed them just waiting a response...

TVaRt

364 posts

221 months

Monday 11th May 2015
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Have since figured out that the engine is a V8 developments replacement, and its internally balanced. Someone put the original 500 pulley back on which is not neutrally balanced (but was used to balance the assembly externally on a 500 engine).
So going to removed the rear plate with welded weight, hopefully this should sort the enginer vibration. After that i guess its time to check the flywheel to see if its been drilled/weighted.

Anyone know if its possible to remove the flywheel whilst the engine and box are still in the car?


jojackson4

3,026 posts

136 months

Monday 11th May 2015
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You have to pull the gearbox or separate