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Author Topic:   Mechanical vs. Belt drive alky pump
dirtcrew
Dirt Newbie

Total posts: 2
posted August 15, 2001 10:41 PM
We are looking to switch from gas to alky. Need to know pros and cons of mechanical and belt drive fuel pumps. Also what seems to be the prefered carb? Thanks.

7a
Dirt Full Roller

Total posts: 41
posted August 16, 2001 12:26 AM
got a power steering alky pump on my406 30 races and no prob good fuel pressure just dont get the belt to tight little hard to get the pump pully adjusted allen ***** in a tight spot

7a
Dirt Full Roller

Total posts: 41
posted August 16, 2001 12:28 AM
kse

Mod 78
Dirt Roller

Total posts: 15
posted August 16, 2001 08:54 AM
quote:
Originally posted by dirtcrew:
We are looking to switch from gas to alky. Need to know pros and cons of mechanical and belt drive fuel pumps. Also what seems to be the prefered carb? Thanks.

We run a C&S mech. fuel pump lasted three years finally blew the seal last Saturday cost a little more but very reliable.
Mod 78

Chad
Dirt Full Roller

Total posts: 37
posted August 16, 2001 11:51 AM
I have been using my KSE tandem power steering/fuel pump for the last 4 years. I got it used when I bought my first car and it was 3-4 years old at that time. It has been sent back to KSE once to have it checked out and everything was fine. If you take one apart you'll see how simple they are. Just make sure you make each part of the blocks so they go back together correctly. There are only hex gears (like in an oil pump) and O-rings inside. THIS IS THE ONLY WAY TO GO !!!!!

BILLY BOB
Dirt Forum Racer

Total posts: 81
posted August 16, 2001 12:43 PM
kse tandem, more expensive, but easier in the long run.

mod91
Dirt Roller

Total posts: 5
posted August 16, 2001 11:24 PM
I would go with the belt drive. We have been using one all year without a problem. As far as a carb we use a Willy's. The are in mt. carmel il. We bolted it on and have not had to touch it. They will custom build what ever you need. Just tell them what you got and they will make it work.

jlfastride
Dirt Full Roller

Total posts: 27
posted August 18, 2001 10:48 PM
belt drive is definately the choice. more steady flow and much cheaper to set up the bypass(spring and pill) instead of throttle bypass. gl jl

brownstone
Dirt Full Roller

Total posts: 45
posted August 19, 2001 12:38 PM
belt drive I believe is better over all but that being said, getting some issues right at first can be a hassle like the following, setting up all of the pulleys and leaving enough space for the mandrel belt and the fan enough space between the radiator.

Also one important issue is with belt pump that I have been fighting for a while is that unless the idle pressure is controlled correctly, the needles get blown of the seat in the carb.

I am still fighting this issue my pump has internal pill style pressure regulator with a spring and I dont reccomend that type of pressure regulator its a headache.

Other that that belt drive is better over all.

Hammer 1
Dirt Full Roller

Total posts: 48
posted August 19, 2001 11:03 PM
KSE belt drive all the way. Mount it on the back of the motor, fix it and forget it. Send it back over the off season for a check up.

AJ GARBE70
Dirt Moderator

Total posts: 59
posted August 19, 2001 11:20 PM
i see people useing barry grant you can get about any of them to use for alky

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