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Old 06-18-2009, 09:05 AM   #1 (permalink)
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Mechanical fuel pump eccentric install HELP

302 engine that was built for EFI and elec. fuel pump. I bought it, converting to carb and mechanical fuel pump.

I have bought an early 302 timing cover that has the provision for the mech. fuel pump. I realize they make a 1 and 2 piece eccentric type timing chain, and mine is the 2 piece, with the raised shoulder. I bought the 2 piece eccentric to actuate the new mechanical fuel pump. I realize I need the shorter cam dowel pin to work with the 2 piece eccentric, which I have. Here is a shot of my double roller



The question. How exactly do I go about installing this fuel pump eccentric? What is the proper way to remove the dowel pin, install the fuel pump eccentric and new dowel pin? Do I need to worry about TDC or remove the cam? Or can this be done without removing the cam?

The gameplan is remove long dowel, install short dowel, install eccentric with tab sharing the hole of the dowel pin, bolt er up and done....Just not sure if its that easy or not.

This is the 2 piece eccentric I bought


Last edited by ctfortner; 06-30-2009 at 06:15 AM. Reason: updated
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Old 06-30-2009, 06:16 AM   #2 (permalink)
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Re: Timing cover swap and mechanical fuel pump

Noone? I really could use some insight here. Thanks
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Old 06-30-2009, 06:32 AM   #3 (permalink)
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Re: Timing cover swap and mechanical fuel pump

Line of the cam and crank gear dot to dot
Pull the bolt out of the cam gear,
Carefully pry the top gear off... prying the bottom gear off as well as you go (alternate back and forth)
Get some plyers or vise grips and grap the pin, turn it and pull, may need to spray lubricant as well.
Put new pun in place and tap in
Place gears back on top and bottom of cam/crank
Alternate tapping gears back in place making sure they are aligned dot to dot.
Check pin depth to make sure it is recessed enough for eccentric. If not get a punch and tap in further as needed.
Use locktight and reinstall cam bolt and eccentric.

Your done.
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Old 06-30-2009, 06:40 AM   #4 (permalink)
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Re: Timing cover swap and mechanical fuel pump

Thanks for that info cahorne!

what happens if they are NOT aligned properly when reinstalling? I am not sure if or how easy the cam and crank will try to turn once the timing chain is off.

Last edited by ctfortner; 06-30-2009 at 10:50 AM.
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Old 06-30-2009, 10:44 AM   #5 (permalink)
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Re: Timing cover swap and mechanical fuel pump

Just rotate the motor until the dot on the cam gear is at 6 o'clock and the dot on the crank gear is at 12 o'clock and follow Cahone's instructions.
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Old 06-30-2009, 11:29 AM   #6 (permalink)
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Re: Timing cover swap and mechanical fuel pump

LIne up the dots prior to removing the gear. If it goes back together without the dots lined up it wil be out of time and you will have to do it again because it probably won't start. There should be no reason to turn crank or cam once the chain and gears are off.
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NEW COMBO: 5 Speed is gone. 4R70W with BE controller.E85, solid roller 13:1 compression.
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Old 06-30-2009, 11:43 AM   #7 (permalink)
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Re: Timing cover swap and mechanical fuel pump

when installing shorter pin, get longest bolt that avail. into cam. hold that bolt against the cam plate , then tap cam pin in. don't won't to bang cam on rear soft plug or lobes to lifters
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Old 06-30-2009, 08:24 PM   #8 (permalink)
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Re: Timing cover swap and mechanical fuel pump

Well thanks for the info guys....I did JUST as you stated carhone, rotated to dot to dot and pulled the chain (actually mine was dot to R2)...i was able to easily remove the dowel pin with an easy pull. this is a motor thats never been cranked, so i am sure thats why it was so easy....i installed the new shorter dowel pin, reinstalled the chain exactly as i pulled it off (dot to R2), put the eccentric on, good to go. So i think anyway, but it came apart and went back together the same, just with a new pin and eccentric. I have to go back and put some loctite on the bolt, but other than that i think its good.


THANKS!
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Old 07-01-2009, 10:10 AM   #9 (permalink)
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Re: Timing cover swap and mechanical fuel pump

Quote:
Originally Posted by ctfortner View Post
Well thanks for the info guys....I did JUST as you stated carhone, rotated to dot to dot and pulled the chain (actually mine was dot to R2)...i was able to easily remove the dowel pin with an easy pull. this is a motor thats never been cranked, so i am sure thats why it was so easy....i installed the new shorter dowel pin, reinstalled the chain exactly as i pulled it off (dot to R2), put the eccentric on, good to go. So i think anyway, but it came apart and went back together the same, just with a new pin and eccentric. I have to go back and put some loctite on the bolt, but other than that i think its good.


THANKS!
Good Job, you should be good to go.
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6.19 @112 1/8 mile; 9.73@138 1/4 mile Texas Motorplex Fun Ford weekend 2012
NEW COMBO: 5 Speed is gone. 4R70W with BE controller.E85, solid roller 13:1 compression.
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