97 challenger 1800

[gentile3]

anyone try adding a low pressure fuel pump to eliminate the hard starting issue?

i was thinking 2 low pressure electric pumps, two frps and a set of fuel pressure gauges on the dash...

any thoughts or ideas would be appriciated...

tks

sam

 

[seadooya]

you can remove the carbs, go thru them so you know they're right, and while yuor at it, remove the choke plates and install a primer kit. Remedy for hard startting....:cheers:

 

[Dr Honda]

It shouldn't have a hard starting issue.

As said above... clean the carbs, and add a primmer

 

[gentile3]

everyone

i know that has one of these says they are hard starting whem you first put it in the water.... alot of people told me just hose start it at home before heading to the lake. but i want to actually fix it, not just band aid a cure.

i rebuilt the carbs last winter and it runs great once its running... are you refering to the pull primer system that dumps the fuel in?

also, dr. where are you from? i grew up in the shadows of woodland hills hs

 

[voodoo]

The 97 should have accel pumps that use existing fuel, I always start at home and run for 1 minute without hose, about the same as the exhaust blow out when you leave the water - no long term heat up.

 

[gentile3]

the carbs

dont have accel pumps, they have that little plastic bladder that basically sucks the fuel to the carbs. the problem, imo, with the design is the amount of travel the fuel has before it actually gets to the carbs and the last bit of the trip is up hill from under the motors. thats why i was thinking if you put 2 psi to the system you could basically primer it prior to cranking the motors.

the gauges in the dash would let you know when you were ready to fire...

oh and BTW thanks for all the insite and advice! :hurray:

 

[Dr Honda]

I'm close to Irwin. SE of Da' Burgh'.

I don't remember if those carbs had the accelerator pump or not... but if they do... a few pumps of the throttle handle should get it to fire.

Also... a primer isn't considered a band-aid by most people. When these carbs sit for a long time, the pressure bleeds off, and to get a shot of fuel from them requires some pressure to fill the carbs. But the stock pumps should do just fine. Anyway... a primmer has the ability to draw fuel up the line, and just squirt a little in the engine(s), and in turn, will make them pump the carbs up without having to crank the engine for 10 or 20 seconds. I personally put primers in almost everything I own, with the exception of my old super jet. It can sit all winter, and fire with about a 2 second hit of the start switch, and I never use the choke on it. But... as I'm typing this... I have a primmer sitting on my desk going into the 90 Si project sitting in my shop.


Now... is your hard start just after it's been sitting for the winter, or does it happen in a weeks time?

Last thoughts... a low pressure pump will get some fuel up to the carbs, but it may make a restriction in the line since the SBN carbs recirculate fuel back to the tank. Also... unless you are producing "Pop-off pressure" levels, you will still have to crank the engine to build pressure, to feed the carb.


Give us an idea of the hard start time frame, but I vote for a manual primer.