distributor

[pug]

What causes knocking sound at distibutor cap. thanks

[86FUBAR]

Unbolt the cap and flip it around and look inside at the contacts and inspect for bent , broken or scored contacts and check the rotor for damage (fix as necessary) then reinstall the cap and make sure the cap sits flat on the distributor housing . It sounds as if the rotor is contacting the cap.

[pug]

Will try tomorrow. Thanks

[pug]

Checked rotor wasnt bad replaced anyway. New plugs new cap and wires. Still has knock idels smooth at 650rpm. Is it something i have to worry about or let it go. thanks

[HOrnbrod]

Pull the rotor a check to see if you have any side-to-side slop on the distributor shaft. The bearing may be worn out.

[pug]

Just checked there is a lot of play side to side on distributor shaft. Can i replace just the bearing or do i have to replace distributor. thanks

[HOrnbrod]

Just checked there is a lot of play side to side on distributor shaft. Can i replace just the bearing or do i have to replace distributor. thanks

 

I've been unsuccessful finding parts to rebuild distributors. :( You may luck out find a good used one at the yard (doubtful), or shop around and buy one new/rebuilt.

[pug]

Ok will do. Is it a bearing or is it a gear you are talking about. thanks

[HOrnbrod]

Ok will do. Is it a bearing or is it a gear you are talking about. thanks

 

Shaft bearing(s). You can still buy the gear replacements.

[pug]

Is there anyway to tell if it is the bearing or the gear. thanks

[HOrnbrod]

Pull it out and inspect it.

[pug]

Pulled out distibutor no side to side play. There is play up and down. Is that normal.thanks

[HOrnbrod]

Yes, about 1/16" up/down play is normal. There should be no side-to-side play. How's the drive gear look? If it's okay I'd say your distributor is okay.

[pug]

Yes gear has some wear don't know if it is within spec. If there is one were can you buy just the gear. thanks

[HOrnbrod]

http://www.jeep4x4center.com/distributor-gear-83504635.html

[pug]

Ok thanks hopefully that will fix it.

[pug]

Installed new gear this weekend still have knock at distributor. Installed new distributor same result. Anything else i can check. thanks

[nitroxsteve]

When do you hear the knock? I had a Knock from my distributor after rebuilding my engine. It would miss under part throttle and I would hear a knock from the distributor. I found the problem was the gasket that came in the engine kit would flatten out and let the distributor come loose after driving a few miles. This would let the distributor slap back and fourth on the clamp bolt everytime the timeing would try to advance or retard. It actualy left little thread marks on the clamp. I fixed it by removing the gasket and just using grey RTV. I have put about 2,000 miles on it so far and no more problems. I'm not sure if this is what your experiancing but it's something to look at.

 

Good Luck,

[pug]

I will try anything at this point. Thanks

[pug]

Today got timing checked it was good and rtv it. Going to let it sit over night.Hopefully this works.

[pug]

RTV did not work. Is this going to be a problem i have to worry about. thanks

[pug]

Over the weekend talked to a mechanics he said it might be a cam bearing. Does this sound write and if it is. How hard to replace. thanks

[pug]

Still have knock sound from distributor. Is this something i am going to have to wory about.Would like to get fixed before weather gets bad if i have to. thanks

[carnuck]

Is the cap on 180 degrees out? There is a notch that has to be lined up so the cap sits straight.

[pug]

Just checked cap. Looks like there is only one way to put it on and cap is sitting straight.