Flooding when hot

[zackary027]

i have a brand new edelbrock 600 electric choke, and a manual fuel pump with only two lines in and out, when my truck gets hot and i turn off for a few minutes when i go to crank back the carb is flooded. i was told to get a fuel pump with 3 ports one for return will this help?

[Your41Plague12]

Yes it will. The excess fuel that the carb can't put to the motor will go back to the gas tank. That might solve your problem. I'd also put a pressure regulator in, IMO.

[GMC Guy]

i have a edelbrock fuel pump on mine, with only 2 ports. i have a similiar problem starting the truck when it's hot. maybe that's my problem, and not the starter.

[McSwine]

A spacer between the carb/manifold might help, too.

[Hottrucks]

engine heat finds its way to the carb base and it boils the gas in it and it floods over into the intake...a simple fix is a carb base gasket ot 1" spacer that will fix it.....

[Rons86]

Amen to the spacer. Had the same problem with mine and a spacer made a huge difference.

[GMC Guy]

i'm running a two inch phenolic spacer right now, solved the quick running around town starting back up problem. but the starter sounds like it drags if i try to start the truck after jamming down the highway.

zackary027, definitely add a 1" spacer though, it may be as simple a fix as that

[Shyguy]

The starter sounding like it is dragging when trying to start hot is possibly from heat soak if you have headers.

[kody]

mine was doing the same thing.had to set the floats,now runs great.

[Hottrucks]

Originally Posted by Shyguy

The starter sounding like it is dragging when trying to start hot is possibly from heat soak if you have headers.

^^^^^ I AGREE 100% good call header wrap or a mini starter will help

[GMC Guy]

i've been looking into a mini starter, will these two work?

http://cgi.ebay.com/ebaymotors/SBC-B...Q5fAccessories

http://www.db-starter-alternator.com...0-shi0032.aspx

[tucsonjwt]

Those starters are the same design as the GM high torque mini starters - rectangular square mounting block and small motor. The genuine GM starters are more expensive, but I don't know if they are better. I have a GM high torque mini starter in my 83 BB, and I think it helped hot start issue. I think the GM p/n was 12361146, but be sure to check your application. Cost is like $200+ now at a lot of places. The only think I don't like is that the rectangular mounting block leaves an small open space in the top of the mounting surface of the round opening for the original starter motor. I think I will put a piece of sheet metal over that someday. Here is a picture of the GM OEM starter.

http://www.gmpartsdirect.com/results.cfm

I think the phenolic spacer under the carburetor will help, but I don't want one on my truck because then all of the connections to the original Qjet I have will be off (e.g. air cleaner snorkel tube to exhaust manifold, all linkages, etc.) I had one on my 73 BB and it was a cobbled up mess - but did seem to help hot starts. I just floor the accelerator and keep it down when starting hot and it always starts - not efficient but effective.

[zackary027]

spacer solved my flooding issue