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Author Topic:   fuel pump problems
allautopaul
Dirt Newbie

Total posts: 2
posted May 02, 2003 08:41 PM
Hi how ya doing locals. new here. Central California. Got a carbureted 360 class alcohol car. racing last Saturday night it started blowing oil out of the fuel pump weep hole. Now I've seen fuel come out of these weep holes but never oil. I am being told that they are sealed from the crankcase, the seal is gone and I need a new pump. I was thinking the G forces from left turns was filling up the cavity pumping the oil out the weep hole. Question 1. is the weep hole sealed from the crankcase and this mystery seal I don't know about is blown out? 2. If it is, and I need a new pump, what is a decent one? Bought this one at the track last season and its only got about 4 races on it. this is the third pump in a season in a half. I would buy a kit for it, but don't know what make it is and no one can tell me. Thanks, Paul.

mod4
Dirt Full Roller

Total posts: 64
posted May 03, 2003 01:08 PM
I run both Mods with pumps like yours and 360 Sprints with injector pumps.

I had several Alky pumps die on me(oil out the weep hole just like you said), they all had a common link, they sat for awhile. I did three things, switched to the Edelbrock 12# Alky pump, began always running top lube, and never let the motor sit more then 4 or 5 days without running it.
Fuel system problems have been 0% for season and almost a 1/2 now.
Best Wishes.

allautopaul
Dirt Newbie

Total posts: 2
posted May 03, 2003 08:16 PM
I had a feeling other people had this problem and would respond! thanks a lot for the info, I was looking at that pump, but so many pumps a person just don't know what to buy.

one more thing, what is top lube? thanks, Paul

quote:
Originally posted by mod4:
I run both Mods with pumps like yours and 360 Sprints with injector pumps.

I had several Alky pumps die on me(oil out the weep hole just like you said), they all had a common link, they sat for awhile. I did three things, switched to the Edelbrock 12# Alky pump, began always running top lube, and never let the motor sit more then 4 or 5 days without running it.
Fuel system problems have been 0% for season and almost a 1/2 now.
Best Wishes.



mod4
Dirt Full Roller

Total posts: 64
posted May 04, 2003 09:32 AM
Top Lube is made by several different companies, it's a fuel additive for alcohol that helps "lube" everything, alky is so dry & hard on parts that it's worth doing. People use lots of different stuff including Marvel Mystery Oil, I am a believer in buying dedicated top lube. I think right now I am using Pro Blend, but I will look when I go to the shop later.

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