Bulltear distributor gear set problem.

[Jeep madness]

I,m so mad I can't even think straight!!! My truck ate the dizzy drive gears last month after I installed a HEI dizzy. Well lesson learned, transfer the gear form your old dis. to new dis.. Well last weekend I tore the motor down and installed a new set from Bulltear. My motor only has about 8000 miles on it, so I even pulled the pan to get all the metal out. This morning, I loaded my truck to go to the dump, and it crapped out a mile from the house. I pulled the distributor, and the Bulltear gear set is chewed up!!!! I drive the truck about 30 miles and it was running great. I got in it, stopped to put fuel it, and when I started at the gas station, it started running ruff when I pulled out onto the highway. I know it had done it again. I was only a 1/2 mile from the house, so my wife pulled me back to the house with her Cherokee. Has anyone had a set of Bulltear gears fail???

[Dumpy]

That really stinks. Are you sure you had the distributor gears seated all the way into the oil pump gear? If so, it might be worth tearing apart the front end to check that gear and see what could be going on in there.

[Jeep madness]

The distributor was all the way in. I have to do it all over again!!! Monday I'm going to call Bulltear.

[Dumpy]

Ouch. I'm sure they will replace it, but as I mentioned, check that oil pump gear. If that bolt has come loose it could be causing the damage to the new one. If you chew up another one I would say that the gear isn't the problem. Hopefully they will just send you a new one.

[Ristow]

you may something else going on in there with the gears taking the toll.

[The Colonel]

Is the new HEI the only thing you had changed? Did you install new timing chain set or anything before this started happening?

[Thumper168]

Sounds like an oiling problem, I recently changed mine and I havnt had any problems but I dont have any faith in it either.

[Jeep madness]

Originally Posted by The Colonel

Is the new HEI the only thing you had changed? Did you install new timing chain set or anything before this started happening?

I only changed the distributor. The motor only has about 8000 miles on it. I thought getting rid of the points dis. would help performance. I use the truck hard when I use it, pulling tractors, hay balers, and car trailer. I built it about 3 1/2 years ago and have not turned a screw on the motor until now.

[derf]

The HEI distributor may be out of spec. Measure it against a factory distributor to make sure it's right.

[Jeep madness]

Originally Posted by derf

The HEI distributor may be out of spec. Measure it against a factory distributor to make sure it's right.

I did that before I put it in with the new gears. It is the same dimensions. I looked at every thing close before I put the motor back together. Changing the gear is a big pain! I did not want to do it again. But here I am, truck broke down again! I'm not putting that distributor back in ether just in case that has something to with the problem.

[Thumper168]

Did you pack it in assy. lube when you installed it? Postitive you have it installed the correct way? Did it have any oil on it or was it dry after removing again? Was the dizzy tightned up good? It wasnt BullTears gears problem so much as your motor having an issue. Id swap back to the old dizzy after replacing the gears again.

[badaboom]

Could be a number of issues as others have noted.
The set is the cam gear and distributor gear.

set from Bulltear

replaced both gears - cam and distributor?

[Stuka]

When you rebuilt the motor, did you put a new timing chain and gears in? If so, did the top gear have the hole in it so that the cam/distributer gear gets oiled?

I say this because there is a known issue with some timing sets not having that oiling hole. And the result is exactly what you describe here.

[Jeep madness]

The motor has the original timing cover. The distributor gear is missing teeth on one side. I will try to get some pictures of it.

[jaber]

Originally Posted by Stuka

When you rebuilt the motor, did you put a new timing chain and gears in? If so, did the top gear have the hole in it so that the cam/distributer gear gets oiled?

I say this because there is a known issue with some timing sets not having that oiling hole. And the result is exactly what you describe here.

This is where my thoughts went. There have been a couple of threads here about inspecting these oil ports for line-up and casting in them.

[jeepsr4ever]

Yes it can happen 100 times in a row even with the best gear set if conditions arent met. If its a DUI then it is probly sitting down too far. What make is the HEI?

[Jeep madness]

Talked to Mat at Bulltear, after talking it over with him, I'm looking for a stopped up oil passage. I got another set of gears coming. Wish me luck!!!

[billyrb]

might also be worth checking your cam too along with the oiling issues. If the cam has a bad lobe, it'll jump forward causing the gears to grind. Lack of oiling to the gears also has the same effect, just like the dizzy not being shimmed properly.

[Thumper168]

Make sure the gear on the dizzy doesnt have excess slack up and down on the shaft, anything more than enough to allow it to turn loosely is to loose and will allow the gear to move up and down.

[Michael_King024]

i bought an 89 this past july from one of my regular customers who gave up on his...he told me that he had rebuilt the engine with his dad who is a very well respected mechanic here in town, and that a month or so after the rebuild, the dizzy gear broke one morning after he tried to start it...i bought it brought it home...pulled the dist. and sure enough 4 of the teeth on one side were broken...teeth on the cam look fine but when i tried to spin the oil pump manually it wouldnt budge...(now im thinkin maybe oil pump gears are wrecked)...anyways i pull the oil pump cover off and the gears slide out like molasses...they are pristine but the entire pump is caked slam full of old petroleum jelly. Great Googley MoogleyGreat Googley MoogleyGreat Googley Moogley ive never heard of using vaseline to prime the oil pump...we've alwasy used a drill to do it manually. vaseline is everywhere and i get out as much as i can....next i think well maybe i have a problem with the rotating assembly...sure enough..i turn the crank almost 2 complete turns and it stops dead in its tracks..pull the oil pan...looks good....and found the broken teeth in there...now im lookin at the top end ...thinkin maybe i dropped a valve or a broke rod maybe....well find out here in the near future...."its a thin line between love and hate!"