[Healeys] fuel problem

[Bob Spidell]

Sounds to me like you have an air leak on the inlet side.  The pumps are 
overheating.

You didn't specify if these are SU pumps or aftermarket rotary/impeller type. 
SUs don't require any lubrication (in fact, it would probably be a bad idea to 
put oil on/in an SU).  The aftermarket rotary pumps--AFAIK--don't use fuel for 
lubrication (only fuel injection pumps that are immersed in the tank require 
fuel for lubrication--again, AFAIK).


Bob



jim brown wrote:
> A couple of weeks ago there was a post outlining a problem with a fuel pump "burnning" out on 2 occations. I didn't see a final resolution if there was one. I have had 2 electric fuel pumps in parallel on my BT7 for years. One went about 3 months ago. I just thought it was old age. Since then the car has become fuel starved on 2 occasions. It sills run for a short distance and then dies, full choke sometimes keeps it sputtering along for a while. Both pumps are working (they click very fast) but no fuel delivery to the carbs when it begins to die (scant fuel and a occasional bubble in the filter). On each of 3 occasions one of the pumps eventually died while the other kept going but still no fuel (shut it off so I didn't have to replace 2 pumps). The dead pump wouldn't work at first on the bench but after shooting some lubricant into it it began to run-seemed like the impeller had become stuck. After being towed home the car started right up the next
>  morning on the still good pump. . I've never had a problem with vapor lock in 15 years and think that an electric pump should overcome it anyway but all three times it was a hot day. I think the pumps are not getting gas which I suspect lubricates the impeller then it binds and the pump stops. Gas tank seems ok, no leaks. no junk and the filter before the carbs is clean. Any ideas. 
> 
> Jim Brown

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Bob Spidell           San Jose, CA            bspidell at comcast.net

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