Author
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Topic: Got one for yall
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Wes
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Member # 3891
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posted
I put a 351 in my 91gt, runs great except...It keeps eating the gear off of my distributors. I have 502-520 crane cam. Im using rebuilt 351 distributors. All the info I've found on this says it should work with the stock distributor. Any one ever heard of this. [ July 18, 2004, 08:21 PM: Message edited by: Wes ]
Posts: 82 | From: vacaville ca | Registered: Dec 2003
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Fostang
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Member # 3752
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posted
Is it the correct material for the cam?
Can't remember the exact combo bronze with what but I know there is a difference.
-------------------- 67' Fastback TT 408 67' Camaro Lsx 64' Corvette Fuelie 57' Chevy Bel Air Lsx 68’ Pony Convertible 66’ Pony Coupe
Posts: 3013 | From: Stockton/Danville | Registered: Nov 2003
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Wes
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Member # 3891
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posted
Hopfully i do need bronze..But everything ive read says it should work with the stock one which we know is cast. It only took about 5 min. of run time to eat it.
Posts: 82 | From: vacaville ca | Registered: Dec 2003
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wilit
Mustang Messiah
Member # 3367
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posted
I think it's roller cam=bronze gear, non-roller=steel gear. It's either that, or the other way around. I can't remember.
-------------------- "If a man hasn't found something worth dying for, he isn't fit to live." - Martin Luther King Jr.
Posts: 4793 | From: 37.78514° North 122.40100° West | Registered: Oct 2003
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S351-R
CAFords OG
Member # 1605
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posted
Sounds like you are using a non-roller cam distributor drive gear in a roller cam equipped block. Most of the non-roller cam distributors use a cast iron drive gear. Roller cams require a steel drive gear. [ July 18, 2004, 09:40 PM: Message edited by: SALEENx3 ]
Posts: 344 | From: Earth | Registered: Jul 2002
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Wes
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Member # 3891
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posted
Thanks fellas
Posts: 82 | From: vacaville ca | Registered: Dec 2003
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JohnB
Tech Moderator
Member # 969
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posted
Ok cam guru's, let's get some input.
NON-roller cam, NON-roller block. Engine is a 89 351w, Crane cam, stock oil pump. The thing is going through stock distributors like crazy. It's literally grinding the teeth right off the gears.
Things that have been checked:
Dist drive gear (proper height and correct installation) Cam thrust plate Cam freeze plug Oil pump drive
Any ideas??
-------------------- 1965 Shelby Cobra 1993 Cobra 2012 F150 Raptor 2020 GT500
Posts: 6525 | From: Orlando FL/Redding CA | Registered: Mar 2002
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FasterDamnit
Bad Attitude
Member # 442
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posted
Ask Crane.
It should work- flat tappet cam is just case hardened iron. The roller cams are steel. Iron dist. gear should match up.
-------------------- '92 LX T5 Looked stock, went 11's 11.90 at 115mph.
'65 Mustang 347
www.fordmuscle.com
Livin' in the Carolina Pines
Posts: 2971 | From: NorCal | Registered: Sep 2001
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mtbaughs
Road Racer
Member # 4052
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posted
Have you checked the teeth on the cam to make sure they are not messed up or missing
Posts: 2019 | From: Boise, Idaho | Registered: Jan 2004
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JohnB
Tech Moderator
Member # 969
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posted
Opps, should have included that in the post. Crane was called this morning. Tech rep stated it could only be one cause...a high-volume oil pump. It's got a standard one installed.
The gear on the camshaft is EXTREMELY sharp. Sharp enough that after 5 mins run time, it's already chewing up a dist gear. I have a bad feeling the cam wasn't cut/ground correctly.
Maybe if we all send Wes a PM with the words "roller setup" we can put this flat-tappet stuff behind us ![[Razz]](tongue.gif)
-------------------- 1965 Shelby Cobra 1993 Cobra 2012 F150 Raptor 2020 GT500
Posts: 6525 | From: Orlando FL/Redding CA | Registered: Mar 2002
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chosen1
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Member # 1906
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posted
speaking from experience, i can tell you why my setup ate up distributor gears. the cam thrust plate had backed off; so far that the bolt holding the cam timing sprocket dug into the timing cover. so yes, because my cam was traveling, it was taking distributor gears with it. when i finally tore the motor apart, the gear on the cam appeared to be perfect.
i know run a bronze gear in my roller setup 351. i still find myself checking the distributor gear for wear.
-------------------- 1967 Fastback. Should go 10's -but doesn't 1993 Cobra 2003 Suzuki SVS 1966 Coupe -For Sale
Posts: 2205 | Registered: Sep 2002
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Wes
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Member # 3891
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posted
Screw it...Im ordering a new cam, Yes non-roller, and tearing the front of the engine apart.....we'll see what happens.
Posts: 82 | From: vacaville ca | Registered: Dec 2003
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