[DeTomaso] distributor gear

[Roland Jaeckel]

Mikeal's 600 HP+ Cleveland IS a race engine.
A race engine has to be inspected after ecvery race.
That HP isn't avaiable in a street Cleveland without trouble.
You want the power, so you have to live with the hassle.

If it would be mine, i would try a Craine steel gear. If it workes, fine. If 
not, i would change the cam and gear to a working combo.

Roland


----- Original Message ----- 
From: "Thomas Tornblom" <thomas at hax.se>
To: <detomaso at realbig.com>
Sent: Friday, April 13, 2012 2:10 PM
Subject: Re: [DeTomaso] distributor gear


> 2012-04-13 13:41, Mikael skrev:
>> With all the detailed input, my head is spinning. My conclusion for 
>> myself
>> is that since I have a cam of unknown origin, I would be a very brave man 
>> to
>> use anything else than bronze and cruise around Europe this summer. I'm 
>> not
>> that brave. I'll bring an extra bronze gear though.
>>
>> It still puzzles me why this is a problem for the aftermarket, when
>> apparently the factories has it sorted, never heard of this issue for a
>> stock cam/gear.
>
> It is only a problem for some of the aftermarket.
>
> I have a Crane steel hydraulic roller cam, with a Crane steel
> distributor gear, and when I swapped to distributorless ignition, and
> pulled the dist out, the gear looked perfect. I installed the cam
> position sensor instead of the distributor, using a new Crane gear, just
> because I was too lazy to pull the old one, and I had a new one laying
> around.
>
> I would never accept having to replace the distributor gear regularly.
> That might be fine on a race engine, but never on a street car.
>
> And then there's all that bronze crap moving around in your engine. No
> thanks.
>
> Thomas
>
>>
>> Thanks for input
>>
>> Mikael
>> -----Oprindelig meddelelse-----
>> Fra: JDeRyke at aol.com [mailto:JDeRyke at aol.com]
>> Sendt: 13. april 2012 10:05
>> Til: will.kooiman at gmail.com; detomaso at realbig.com
>> Emne: Re: [DeTomaso] distributor gear
>>
>> In a message dated 4/12/12 7:51:48 PM, will.kooiman at gmail.com writes:
>>
>>> This metallurgy discussion only applies to roller cams, right?
>>> I've always assumed that I didn't have to worry about the dist gear
>>> material with my flat tappet cam (CompCams).
>>>
>> I agree with Dan. Regardless of the cam being run, the only real 'safe'
>> setup with a 351-C is to minimize the loads the oil pump applies to the 
>> cam
>> gear and the one in its mesh on the bottom of the distributor shaft. The
>> distributor load is trivial; its all pump load. And there are three 
>> failure
>> points: the distributor gear pin, the oil pump driveshaft and finally the
>> gear teeth themselves. The first two are simple to fix; there is no 
>> perfect
>> fix (so
>> far) for #3.
>> To cloud the mix further, occasionally, an aftermarket cam of any kind 
>> will
>> get its integral gear cut at the wrong pressure-angle; with such a cam, 
>> any
>> gear may last only 5 miles. Yes- it's happened. My 2¢- J Deryke
>>
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>
> -- 
> Real life:   Thomas Törnblom             Email:    thomas at hax.se
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