Where did my idle go?

mockingbird812 · Post by **mockingbird812** » Sun Sep 28, 2008 10:52 pm

'71 710K has been a running fine till recently. On the way to work shortly after turning off the choke I noticed when I came up to the stop signs that the engine stalled. It needs about 2k rpm to keep running now or remains running at idle with choke on. No loss of power. I R/R my fuel filter.

Any help is appreciated.

Sam

mjnims · Post by **mjnims** » Sun Sep 28, 2008 11:22 pm

sounds like the cutoff valves at the carb lost power to them. Check connections or breaker.

mockingbird812 · Post by **mockingbird812** » Sun Sep 28, 2008 11:29 pm

Mike - are those the 4 solenoids on the driver's side of the carbs?

Thanks Sam

mjnims · Post by **mjnims** » Sun Sep 28, 2008 11:36 pm

Yeah. If the truck was running fine and then all of a sudden started acting up this is probably one of the most common problems. Happened to me after a long trip home from a hunting trip with a couple of new guys. They were less than impressed with the truck when I could not keep it running. Problem was a tripped breaker just a few inches from my hands. So tired after the day and in the dark did not notice it till the morning.

mockingbird812 · Post by **mockingbird812** » Sun Sep 28, 2008 11:47 pm

Mike - you NAILED it!

Took the flashlight outside and checked and there she was - I think #10 or #9 circuit breaker? What would cause that to pop and should I expect it to happen again? I had already checked each of the solenoid connections and they looked good (you would think that I would have checked the circuit breaker

! Thanks for helping out. Going to work in a modern car just don't cut it. Now I'll be in my usual good mood tomorrow drivin' my Pinz!!!!

Gratefully,
Sam

mockingbird812 · Post by **mockingbird812** » Sun Sep 28, 2008 11:51 pm

For the record, I just made a donation to this wonderful site. Thanks Mike. Thanks Vince.

Sam

Jim LaGuardia · Post by **Jim LaGuardia** » Mon Sep 29, 2008 2:48 am

Welcome to the group, A few things can trip that breaker, a loose solonoid center(plastic and terminal loose from case) causing an internal short, a loose or chaffed green wire to the solonoids, also chech the Molex connector.

mockingbird812 · Post by **mockingbird812** » Mon Sep 29, 2008 8:38 am

Hi Jim. Thanks for the info. What is a "Molex Connector".

Thanks,
Sam

hrafn · Post by **hrafn** » Mon Sep 29, 2008 5:44 pm

Sam,

The circuit breakers in the Swiss version of the truck deteriorate with time.
I had a lot of trouble with my circuit breakers, especially in the summer
when the interior of truck would get hot.

I eventually replaced all of my original circuit breakers with a marine version.
There was an article about circuit breakers on http://www.sdp-pinzgauer.org/,
but that site has been down for quite some time.

mjnims · Post by **mjnims** » Mon Sep 29, 2008 6:01 pm

Jay
Unless Juergen has a backup of the site it is gone for ever. The hosting company we had the sites on is no longer. The SWPA is on a new hosting company and much safer now.

I did the breaker replacement in my 712 after reading about your work. They have been there since with no problems. At the time I needed new breakers finding them was impossible. There were mog breakers available but they were too big.

The marine breakers are available at www.boatingstore.com while not a direct fit they do work.

todds112 · Post by **todds112** » Mon Sep 29, 2008 9:44 pm

mockingbird812 wrote:Hi Jim. Thanks for the info. What is a "Molex Connector".

Thanks,
Sam

It's the white plastic multi-wire connector that is located just behind the distributor attached to the engine tins.

David Dunn · Post by **David Dunn** » Mon Sep 29, 2008 11:29 pm

A link to Jay's breaker writeup. Missing most the pics.... use your imagination

http://web.archive.org/web/200706180931 ... ement.html