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 1Likes
04-01-2013, 01:11 PM
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Senior Club Cobra Member
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Join Date: Jan 1999
Location: MARKSVILLE,LA.,,
Posts: 3,235
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Not Ranked
A little off topic, but related........I just ordered a Ford factory distributor at the local O'Reilly's for a 1985 Mustang GT 302 engine, (last year of the carbed engines) to use on my 331 carbed engine.....I wanted one with the factory vacum advance on it and I'm tired of fighting rusted MSD distributors........
anyway, it does say it comes with a steel gear for a roller cam, which is what I need......
My question is: I don't trust this at all, is there anyway to tell the difference between a steel gear and a cast iron gear used on a hydraulic flat tappet cammed engine?????
Distributor should be in wensday morning........
David
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DAVID GAGNARD
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04-01-2013, 04:23 PM
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CC Member
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Join Date: Mar 2004
Cobra Make, Engine: spf 2112 *427 stroker windsor
Posts: 333
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Not Ranked
Luce
The wear on the cam verses the distributor gear seams to point to the distributor gear being steel and the cam gear being cast iron
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04-01-2013, 04:35 PM
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CC Member
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Join Date: Mar 2004
Cobra Make, Engine: spf 2112 *427 stroker windsor
Posts: 333
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Not Ranked
David
Should be able to tell by looking at it
Cast iron gear has rough cast finish on the un machined areas
Steel gear has machined finish on all surfaces
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04-01-2013, 04:47 PM
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Senior Club Cobra Member
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Join Date: Jan 1999
Location: MARKSVILLE,LA.,,
Posts: 3,235
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Not Ranked
Quote:
Originally Posted by carmine
David
Should be able to tell by looking at it
Cast iron gear has rough cast finish on the un machined areas
Steel gear has machined finish on all surfaces
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Thanks for the tip, I never really paid any attention to this....I have a distributor out of a 94 Mustang GT,factory roller cammed engine,the gear looks almost like new, I tried to take it off and save it, but it is either frozen on the shaft or welded on  , I tried everything I know of and never got it to move even .00001 fo an inch,including heat form a torch!!!!!!!!!
I was going to use this distributor, but since my engine is a carbed engine and this distributor is for a computer controlled/fuel injection engine, the electronics will not work, hence the 1984/1985 style distributor for the factory carbed cars......
the computer at O'Reilly's says it comes with a steel gear,I just don't trust any parts place anymore with this kind of info,things change all the time and they rarely update their computers to these changes.......
I'll compare it to the one I already have when the new one gets here in a few days.....
Thanks again:
David
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DAVID GAGNARD
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04-01-2013, 05:08 PM
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CC Member
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Join Date: Aug 2010
Cobra Make, Engine: Lone Star with IRS, 427W with megasquirt, T56 magnum
Posts: 309
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Not Ranked
Honestly, I have one of the first Ford 427w's. At the time, the PDF instructions were not yet available. I read around and thought that all roller cams were steel. My engine may not have had a steel cam. I never saw anything specifically saying use a steel gear until way after I had already installed one and didn't look back. I saw the PDF saying use a steel gear well after I had mine installed.
Brent has hooked me up with replacement parts and now it's just a waiting game. I'm hoping I get the stuff before this weekend, but not counting on it. It'll be a PITA, but it will clear up a lot of issues that were making me question things I know as fact and making wilder and wilder theories to explain the troubles I was having. I'm happy knowing what the problem is so I can fix it.
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04-01-2013, 06:50 PM
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Senior Club Cobra Member
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Join Date: May 2001
Location: Florence,
AL
Cobra Make, Engine: RCR GT 40 & 1966 Fairlane 390 5 speed
Posts: 4,511
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Not Ranked
A friend just when thru this Comp cam / steel gear thing.
Comp bought some cam blanks (or made them) out of very hard stuff. They are eating up all dist. gears. My buddy use the poly gear which lasts 8,000 miles.
After calling the builder and Comp he found out that Lunati has a new gear that works with any cam but only fits stock dist.
The builder drilled out the gear to fit my buddies MSD dist.
All problems solved!
I would never use a bronze in a street motor. The gear will wear out (fast) and you have all that bronze dust in the oil going thru the bearings! Not on my motor.
They OK on a race motor that gets pulled down a lot.
Dwight
__________________
''Life's tough.....it's even tougher if you're stupid.'' ~ John Wayne
"Happiness Is A Belt-Fed Weapon"
life's goal should be; "to be smarter than inanimate objects"
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04-01-2013, 08:34 PM
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CC Member
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Join Date: Sep 2009
Location: Dallas,
tx
Cobra Make, Engine: FFR track car, SL-C track car
Posts: 1,262
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Not Ranked
Well that's very interesting. My Ford Racing 427W also ate my cam gear.
Pulled the motor and sent it back to Ford because luckily it was still under warranty. They made it good, but gave no reason as to why it might have happened. I was using the distributor gear they recommend for the cam.
I've seen a fair number of distributor gears eaten up, mostly due to material mismatch, but have seen very few cam gears eaten up.
Mine looked like about 1/3 of the teeth broke off. It did not look like wear.
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