Vapor lock

geno58 · Post by **geno58** » Sun Apr 08, 2012 9:53 pm

Took my 1980 Spider out for the first time, since winter up grades. Had some problems, looking for some idea's. Seemed to run good all day, lots of stop and go traffic, never seemed to over heat. Stoped for lunch, came out, started right up, made it about a block, where it died. Pump the trottle a few times, it would start and die. Pulled supply line from carb., cranked it no fuel. Brought it home on a roll back, thanks Hagerty. After 3-4 hours started right up, seems to run fine.
Here's what has been done, it has been desmogged, one of Marks Empi carb's, single plane intake all holes plugged, 4-2-1 exhaust, no cat, stock resonator and muffler, new Mech. fuel pump, no fuel vapor canister, new plugs, wires and coil, cap and rotor. Should I lose the mech. fuel pump and go electric or what. any thoughts?

So Cal Mark · Post by **So Cal Mark** » Sun Apr 08, 2012 10:21 pm

when you removed the vapor cannister, did you plug all of the lines? One way to cure vapor lock is to have fuel recirculating to cool the pump. You could use one of those Chrysler filters with the return line

geno58 · Post by **geno58** » Sun Apr 08, 2012 10:28 pm

I plugged all but the Vent line

geno58 · Post by **geno58** » Sun Apr 08, 2012 10:28 pm

Vent from the Tank that is.

geno58 · Post by **geno58** » Mon Apr 09, 2012 7:14 am

Mark, do you have more details on the Fuel filter, your talking about. Like year and model of mopar?

So Cal Mark · Post by **So Cal Mark** » Mon Apr 09, 2012 10:21 am

awhile back I posted a pic and the part number, try a search

tartan18 · Post by **tartan18** » Mon Apr 09, 2012 10:07 pm

The metal fuel filter I am using that has a return line nipple is made by PTS (Taiwan) with a part number PG3499 which is a direct replacement for the Wix 33054. I found it at the local auto parts store. My car is a 1975 with the 32/36 EMPI DFEV carb.

geno58 · Post by **geno58** » Tue Apr 10, 2012 7:16 am

Thanks, I'll give that a try.

seabeelt · Post by **seabeelt** » Thu Apr 12, 2012 4:15 pm

Have you checked the fuel pick-up strainer in the tank? They sometimes get gooey or plugged with junk and get sucked to the bottom of the fuel pick-up. Can cause very erratic behavior

124JOE · Post by **124JOE** » Fri Apr 13, 2012 12:04 am

my screen was plugged and very brittle i bought a chevy style and cut it off then zip tied it on the pickup tube

but you need to be carefull as the float is very fragile and mine broke and i replaced it

opus10583 · Post by **opus10583** » Sun Apr 15, 2012 5:37 pm

Same thing here,right now; a number of mixed drives on the first truly warm day and after a ten minute stop I got about 100yards then dead. Same mods WITH the 3-port filter. Should have 1/4tank by the odo.

News in a beer or two...

Ciao,
Mark

opus10583 · Post by **opus10583** » Sun Apr 15, 2012 8:58 pm

opus10583 wrote:Same thing here,right now; a number of mixed drives on the first truly warm day and after a ten minute stop I got about 100yards then dead. Same mods WITH the 3-port filter. Should have 1/4tank by the odo.

News in a beer or two...

Two beers, including the walk to the pub and back, fixed it just fine...

Electric fuel pump is now on the sooner-rather-than-later list.

Ciao,
Mark

opus10583 · Post by **opus10583** » Mon Apr 16, 2012 4:30 pm

geno58 wrote:Mark, do you have more details on the Fuel filter, your talking about. Like year and model of mopar?

Hi Geno,

Different Mark here.

This is one I found: http://www.summitracing.com/parts/FRM-G3499

Ciao,
Mark

124JOE · Post by **124JOE** » Tue Apr 17, 2012 12:09 am

opus from your will kill for that sound comment from a different post
i think you want some of so cal marks cams
he has very diferent styles
and $8 a valve go to his site if you havent

rumble rumble

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