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#1 |
Registered Member
Join Date: Nov 2001
Location: germantown MD
Posts: 283
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![]() I bought a new timing chain and it doesn't look like it is going to work. The cam that mounts on the front of the cam gear for the fuel pump doesnt sit evenly. I have a couple ideas but I don't know if any of them are a good idea. the fuel pump cam has these two circular peices the outer one is the reason that it doesn't fit. If I just mounted up the innner piece it would fit fine but that takes away the bearing affect. I was also thinking about grinding down one side of the cam gear. I would only have to take a little off to make it fit but I don't want to throw it off balance. I don't have the money to get an electric and a block off plate so i have to make this work somehow.
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85 GT 4bbl roller cam 2 ch. Flowmasters, O/R H-pipe Performer intake and carb milodon water pump, FMS 9mm wires, aluminum driveshaft, king cobra clutch |
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#2 |
Registered Member
Join Date: Jan 2001
Location: Moline Il
Posts: 901
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![]() What timing set did you get? Another thing to watch for is the gear thickness. I had a fuel pump eccentric actually rub on the timing cover once. That was with a one piece eccentric though, it sounds like you have a 2 piece.
andy
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88 coupe 91 LX NMRA Pure Street 5120 |
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#3 |
Registered Member
Join Date: Nov 2001
Location: germantown MD
Posts: 283
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![]() If I took the outer ring off it would fit fine. Is a one peice eccentric ok. The friction won't cause too much heat will it.
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85 GT 4bbl roller cam 2 ch. Flowmasters, O/R H-pipe Performer intake and carb milodon water pump, FMS 9mm wires, aluminum driveshaft, king cobra clutch |
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#4 |
Registered Member
Join Date: Oct 1998
Location: Az
Posts: 854
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![]() does it have a tab or a hole for the cam dowel pin? spme have a tab that fits into the hole where the dowel pin is...maybe grind that down some... what part is hitting to heep it from sitting flush?
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84 convt,roller 302,AFR's, performer 3.55's, underdrives BBK shorties stock cam, 1.7's 13.58@102.84 and a '68 stang .. project 8 sec street car... 557 big block + N20 :-) http://members.cox.net/darkknight302/68nwrear.jpg |
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#5 |
Registered Member
Join Date: Nov 2001
Location: germantown MD
Posts: 283
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![]() A one piece eccentric would spin with be mounted to the cam gear. It would rub the fuel pump lever every time around. Wouldn't that cause too much wear or heat?
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85 GT 4bbl roller cam 2 ch. Flowmasters, O/R H-pipe Performer intake and carb milodon water pump, FMS 9mm wires, aluminum driveshaft, king cobra clutch |
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#6 |
Registered Member
Join Date: Feb 2002
Location: Alberta Canada
Posts: 17
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![]() I wish i could help out but i dont think i can much. I had the same problem when i put my car together. The fuel eccentric was actually rubbing on the timing cover and wouldnt pump any fuel. I was planning on getting the eccentric machined down but i ended up just getting a electric fuel pump and a block off plate. If you have a few $$ to spend its a good way to go. I got all the stuff i needed for just over 100$CDN. Just get something like a carter pump if you dont need anything big.
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1982 Red GT Performer RPM Heads, Performer RPM air gap intake, Performer 600cfm carb holley blue pump, DF clutch, 8.8"w/3.08 posi, and many more. |
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#7 | |
Registered Member
Join Date: Jan 2001
Location: Moline Il
Posts: 901
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![]() Quote:
Dark Knight brought up a good point. If the tab that sticks in the cam gear is hitting on the dowel pin, you should switch to the shorter pin. Did your timing set come with different length pins? andy
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88 coupe 91 LX NMRA Pure Street 5120 |
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#8 |
Registered Member
Join Date: Nov 2001
Location: germantown MD
Posts: 283
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![]() I will take another look. The tab fits fine. It is the outer piece of the eccentric that rubs. Without the outer piece the eccentric fits fine. I don't plan on spinning it very high and the cam gear only spins half of what the crank does anyways. I think I will install it with just the one piece. After all I can always take it out and try grinding the cam gear if it causes too much heat. Thanks for all the help.
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85 GT 4bbl roller cam 2 ch. Flowmasters, O/R H-pipe Performer intake and carb milodon water pump, FMS 9mm wires, aluminum driveshaft, king cobra clutch |
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