Bump stick trouble
Thread Starter
|
Senior User
Joined: Aug 2007
Posts: 448
Likes: 0
From: Winnfield,La.
Bump stick trouble
Hi gang Just-n-time here, Our 77 with a 351W in it has developed a proublem, the cam Drive gear has failed and destroyed the driven gear on the Dissy. I will have to replace the cam and I am looking for input.
Truck is set up like this, Edlebrock performer , 600cmf Holley, five speed with .79 final and 4.56 rear gears.
Looking for input on new bump stick, the block is an early model not a roller style.
Truck is set up like this, Edlebrock performer , 600cmf Holley, five speed with .79 final and 4.56 rear gears.
Looking for input on new bump stick, the block is an early model not a roller style.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Sent you a PM.
If you put a distributor with a cast gear into a late model 5.8 with a roller cam then that's why this happened, you need a steel drive gear on the dizzy to match the cam.
If you put a distributor with a cast gear into a late model 5.8 with a roller cam then that's why this happened, you need a steel drive gear on the dizzy to match the cam.
Thread Starter
|
Senior User
Joined: Aug 2007
Posts: 448
Likes: 0
From: Winnfield,La.
bump stick
Hotshot
Joined: May 2004
Posts: 12,170
Likes: 5
From: The hills of No. Calif.
I'm more concerned with the fact that the bottom of the distributor shaft which drives the oil pump is busted out. Oil pump locked up maybe? Do you have a stock oil pump shaft in it (which would normally simply shear if the oil pump locked up) or an aftermarket hardened shaft?
Thread Starter
|
Senior User
Joined: Aug 2007
Posts: 448
Likes: 0
From: Winnfield,La.
No Dan that happend when I was trying to remove the gear from the shaft, the trouble is the teeth on the cam are worn down to a knife edge and the driven gear on the dissy are worn as if the two gears tried to ride each other.
Hotshot
Joined: May 2004
Posts: 12,170
Likes: 5
From: The hills of No. Calif.
I saw the chewed teeth on the distributor gear, just thought it might be related to the blown oil pump drive portion of the dist. shaft...but if you did that yourself from hammering on it, then obviously there's no correlation...
Thread Starter
|
Senior User
Joined: Aug 2007
Posts: 448
Likes: 0
From: Winnfield,La.
damage to dissy
NO Dan there was no relation to the gear, I was the dummy who failed to check the end clearance before hammering
though I have another area to be corrected, the end plate for the cam is to thick. The came sprocket is rubbing it as in photos and a few of the came teeth.
though I have another area to be corrected, the end plate for the cam is to thick. The came sprocket is rubbing it as in photos and a few of the came teeth.
Trending Topics
Thread Starter
|
Senior User
Joined: Aug 2007
Posts: 448
Likes: 0
From: Winnfield,La.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Cargo Master
Joined: May 2007
Posts: 2,071
Likes: 36
From: British Columbia
Maybe the distributor is too tight, causing the camshaft to be pulled forward by its gear, resulting in the thrust plate wear. The extra work required to turn a tight distributor could also wear out those gear teeth.
