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351C distributor

 
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1s1k
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Joined: 09 Sep 2006
Posts: 4

224.44 points



PostPosted: Wed Oct 31, 2007 11:22 am    Post subject: 351C distributor Reply with quote

My 351C has eaten up 5 cast iron distributor gears after ten mile of driving each.
Item replaced: Distributor, Camshaft, Oil pump (non high volume)Oil pump shaft and Timing chain. Still no luck.

Thank you.
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af2
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Joined: 01 Sep 2003
Posts: 5557
Location: grassvalley, ca
71191.50 points


1933 Willys Coupe

PostPosted: Wed Oct 31, 2007 1:22 pm    Post subject: Reply with quote

I would be looking at the cam gear after the first failure. After 5 that is probably the answer.
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1s1k
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PostPosted: Wed Oct 31, 2007 1:39 pm    Post subject: Reply with quote

af2 thank you. I replaced the camshaft after the second gear.
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Big Dave
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Joined: 04 Dec 2005
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Location: Tampa Florida
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PostPosted: Wed Oct 31, 2007 3:00 pm    Post subject: Reply with quote

Try the German made plastic distributor gears that CompCams and Crane Cams repackage with their logo on it. Many have said it cures their problems with the brass gear (used when ever you run a billet forged steel camshaft like a mechanical roller); otherwise see if there is a Melonized one available. I personally don't like Melonizing because it is a gas process, that only puts on a few microns thickness worth of protection.

Big Dave
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af2
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Location: grassvalley, ca
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1933 Willys Coupe

PostPosted: Wed Oct 31, 2007 4:01 pm    Post subject: Reply with quote

What part of the gear is going away first?

Where the heck is BAM when you need him! Laughing Laughing
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1s1k
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Joined: 09 Sep 2006
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PostPosted: Wed Oct 31, 2007 4:23 pm    Post subject: Reply with quote

The tips of the gear
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af2
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Joined: 01 Sep 2003
Posts: 5557
Location: grassvalley, ca
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1933 Willys Coupe

PostPosted: Wed Oct 31, 2007 4:35 pm    Post subject: Reply with quote

That tells me it is not deep enough. I might be wrong but the 302/289 distributor is shorter and will do the same in a 351. Just something to look at. Very Happy
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wagon train
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Joined: 07 Jun 2007
Posts: 258
Location: Orange City, FL
7307.16 points


1983 Mercury Capri

PostPosted: Wed Oct 31, 2007 11:04 pm    Post subject: Reply with quote

Measure from the pad in the block where the gear ride up to the machined part of the block where the dist. goes into.then measure the dist. in those same places and see if it is correct.MSD has a tolerance for that.I had the same thing happen to the engine I built for my brothers car.We ended up using a bronze gear because the cam was messed up.Never had a failure after that.
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FORD POWER RULES DEATH TO ALL CHEVYS.

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William Jones
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Joined: 30 Jan 2006
Posts: 820
Location: Lake city, FL
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1971 Ford Mustang

PostPosted: Thu Nov 01, 2007 1:25 pm    Post subject: Reply with quote

I agree with wagon train and AF2 on the depth issue you cou7ld get the block machined to make the Dist. sit down in the block further so it will mesh properly. Are you sure it is a Cleveland and not a 351W the windsor has a taller deck and sometimes gets mistaken for a cleveland. If you get me the cast numbers off the block I can tell you what it is. Also when you install the cam did you put grease on the gear to see how it was meshing with the cam gear? Also is the base of the distributor going all the way in and making contact with the block? If not you might have a 351W oil pump drive its longer and wont let the distributor go all the way down. Just some things to check let us know what you find.

Later Bam

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wagon train
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Joined: 07 Jun 2007
Posts: 258
Location: Orange City, FL
7307.16 points


1983 Mercury Capri

PostPosted: Thu Nov 01, 2007 9:24 pm    Post subject: Reply with quote

The easiest way to tell a Cleveland from a Windsor block is the thermostat is in the block next to the dist.On a Windsor it is in the manifold.Also the front covers are different,Windsor like a 289-302,Cleveland has a 12 ga flat plate that bolts to the block.
_________________
FORD POWER RULES DEATH TO ALL CHEVYS.

"BAKER"
10/5/50-11/7/06

"She doesn't seem to be breathing right,it might be the jets."-The Mechanic
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1s1k
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Joined: 09 Sep 2006
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PostPosted: Fri Nov 02, 2007 9:35 am    Post subject: Reply with quote

Thanks a lot everyone. The block is a 351C because I also have a 351W block. The two distributor I have are also for a 351C. This weekend I will check the camshaft end-play. Before the engine got rebuild I did not have this issue.
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