[Healeys] knock

Michael Salter michaelsalter at gmail.com
Thu Nov 21 10:22:07 MST 2019

I would suggest doing the test ... hot oil and start after 10-20 minutes...
each time with a different plug wire off.
Might help in determining if one cylinder (pistin, big end etc.) is at


On Thu, Nov 21, 2019, 11:41 AM healeymanjim, <healeymanjim at hansencc.net>

> before i tear my engine down i am going out one more time to see if anyone
> has ever encountered this condition before and
> the remedy.  after about 500 miles on rebuilt engine detected a knock near
> front of engine.  two conditions have to be met
> for this knock to occur.  engine oil must be hot and it must have set for
> 10-20 minutes.  will not knock on cold engine or
> upon immediate restart.  knock ceases immediatly when oil pressure builds
> have plastigaged rods and the two middle main
> bearings.  have checked all new lifters, pushrods and valve train.
> installed a new timing chain tensioner and damper.  oil
> pump about 5 years old.   have had piston slap and wrist pin suggested as
> culprit.  any ideas?
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