Re: Replacing eccentric on 340 cam shaft
[Re: Demonizer]
#106077
08/16/08 08:43 PM
08/16/08 08:43 PM
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Joined: Dec 2007
Posts: 18,157
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DAYCLONA
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I Live Here
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Posts: 18,157
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Sometimes the eccentric can go south,just make sure you don't have a suction/ feed problem in the tank or line, before you open up the motor?.....if it's the eccentric, better hope it's not the bolt holding it in is the culprit!....because the bolt holds the washer, that holds the eccentric, that holds the upper timing gear on!.....I wouldn.t run it till I opened up the motor,.....you'll have to pull the water pump, the crank dampner, to get the timing chain cover off......good time to put a gear drive, or new double roller timing chain on, and new water pump,.....you know Murphys Law!...the pump or chain will go after you fix the eccentric!.......been there, done that....to many times!.....good luck 
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Re: Replacing eccentric on 340 cam shaft
[Re: farmington]
#106078
08/16/08 08:55 PM
08/16/08 08:55 PM
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Joined: Dec 2007
Posts: 18,157
Mass
DAYCLONA
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
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Quote:
that would make one hell of a racket if it was loose. Try to blow air in fuel line back to tank. maybe strainer in tank is plugged or fuel filter is plugged. If it was loose, the cam sprocket would be loose on the cam, your cam would be walking all over the place, etc. Its a lot of work to check that. Try pumping fuel out of a gas can connected by rubber hose to your pump (quote)
Don,.....ya would think it would cause a lot of noise,...but I had an eccentric that the center got all busted up on, still stayed on the motor, the bolt was tight, the eccentric relocated itself centered, instead of offset, the pump didn't work, felt the eccentric inside the pump hole, everything felt fine....drove me nuts for 2 days playing with the whole fuel system, before I tore the front end of the motor off!....I hope our friend here has exhausted all other avenues of fuel starvation before resorting to the eccentric......just diconnect the rubber inlet from the pump inlet and put it in a small can of fuel, and disconnect the outlet from the pump, and crank the car over, if you can pump gas from the can, out the exit of the pump,....start looking at suction blockage, needle seat, stuck float......otherwise if no fuel on this test,......the eccentric is your culprit!
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