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-   -   bronze distributer gear! (https://www.offshoreonly.com/forums/do-yourself-boating-budget/219717-bronze-distributer-gear.html)

tx911 11-08-2009 10:13 PM

I had the same problem, cost me a motor. Distributor gear chewed down to nothing, I drained oil, flushed with kerosene, replaced oil, ran for about 20 min, and changed again. Motor still spun a bearing at 10 hours and ruined bloch and a nice lunati crank. Pull the motor, and tear it down, be sure to pull the cam bearings as behind them will be full of metal, and flush or replace oil cooler.

[email protected] 11-08-2009 10:18 PM


Originally Posted by tx911 (Post 2987845)
I had the same problem, cost me a motor. Distributor gear chewed down to nothing, I drained oil, flushed with kerosene, replaced oil, ran for about 20 min, and changed again. Motor still spun a bearing at 10 hours and ruined bloch and a nice lunati crank. Pull the motor, and tear it down, be sure to pull the cam bearings as behind them will be full of metal, and flush or replace oil cooler.

were you running a bronze or steel gear?

[email protected] 11-08-2009 10:22 PM


Originally Posted by TexomaPowerboater (Post 2987824)
You don't want it to eat up the cam. I am going through the same thing. I had an engine builder properly set the height and check timing. Charged about an hour and a half. Engine only had 15 hours on a new custom built motor. We are hoping it was a height problem at installation. I had billet cam, so we just replaced the steel dist gear.

I'm going to pull the oil pan to get the shavings. You dont want those chunks cloging up the oil pump.

well i might be wrong but this is why people should use a bronze gear, becauseits a softer material so you dont chew up other parts. steelgear does not have any mercy.

tx911 11-09-2009 03:17 PM

I had a steel gear, the cam was a roller, but had a press on cast gear. Even with bronze I would not take a chance with a motor I have 13 grand in. Thats just me

[email protected] 11-09-2009 05:46 PM


Originally Posted by tx911 (Post 2988191)
I had a steel gear, the cam was a roller, but had a press on cast gear. Even with bronze I would not take a chance with a motor I have 13 grand in. Thats just me

thanks for the info.

[email protected] 11-09-2009 05:49 PM

well it looks like the ultra poly comp gear is the way to go in my situtation.

[email protected] 11-09-2009 05:52 PM


Originally Posted by Rockfish71 (Post 2987327)
What cam are you running is it all one piece billet roller or two piece then it has a cast iron gear You can buy teflon gaskets "shims" from jegs or summit you need to adjust the distributor with the shims to get the right gear height and make sure you can move the shaft up and down a little if you can't move it up the distributor is too far down.

it is a cast iron crane gear, thanks for all the help!

Griff 11-10-2009 01:14 AM


Originally Posted by [email protected] (Post 2988296)
it is a cast iron crane gear, thanks for all the help!

Then you can and should run a steel gear on the distributor.

ezstriper 11-10-2009 06:27 AM

the dist gear needs to be matched to the cam you are running, only the billet steel solid rollers require a bronze gear, adding one to a std cam would not be a good idea...if you are having issues with the correct gear to cam set, either the cam is junk or dist height way off...Rob

[email protected] 11-10-2009 09:01 AM


Originally Posted by ezstriper (Post 2988534)
the dist gear needs to be matched to the cam you are running, only the billet steel solid rollers require a bronze gear, adding one to a std cam would not be a good idea...if you are having issues with the correct gear to cam set, either the cam is junk or dist height way off...Rob

yea im pretty sure its a height prob.


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