Replaced pump valve o-rings - now idle pulsation

[glenlloyd]

Ok, so I replaced the copper crush washers and o-rings on the first three IP valves last night. All seemed to go ok except there was fuel coming out all over the place.

At any rate got the work done, could only do three since I forgot the intake manifold gasket at home and the back three valves are too far under the intake to torque reliably at that angle.

I got rid of the leaking problem now but I have an idle pulsation that did not exist before.

Suggestions are welcome but I'll bet I have to go back in there again.

steve a

[bobodaclown]

I think I've read it will take a few miles approx 200 for things to work out.

[glenlloyd]

Originally Posted by bobodaclown

I think I've read it will take a few miles approx 200 for things to work out.

Thanks for the info, can you point me to something that talks about the "working out" period etc?

Thanks
Steve A

[tombance]

I did all 5 of mine yesterday, and mine is very noisy at idle, whereas it used to be very quite (before the leak started at least). I'm going to drive it 90 miles to work and back tomorrow and see if it improves.

[glenlloyd]

Originally Posted by tombance

I did all 5 of mine yesterday, and mine is very noisy at idle, whereas it used to be very quite (before the leak started at least). I'm going to drive it 90 miles to work and back tomorrow and see if it improves.

Mine hasn't been driven too much since three of the six have been replaced but the idle sound has changed a little in addition to the slight pulsation. After the engine is completely warm the pulsation is less but still present.

Please post back after you've made the trip with any change that you noticed.

Thanks
Steve A

[tombance]

Heres a thread with some speculation as to the nailing after changing: Possible cause of “nailing” after crush washer and "O" ring replacement

From what I've read EVERYONE has had this problem. Your not alone!