odiie

I'd like to sell my DM. Was made in July of 69. Has a Scania engine and 14 speed trans. Cab has some rust under the drivers door but is very solid. Frame shows no rust at all. Came from an airport as a tanker I'm told and shows 1900 hours 30 some thousand miles but can't say for sure. Runs and drives, looks to be all original. Hood is cracked up but I could let a solid hood go with it. I have no title but if someone was really interested I could probably get one in a few weeks. Headache rack not included. Located in northern Minnesota. 2500.00 Have a 76 DM600 parts truck if anyone is interested as well. This one has under 300,000 on it and was a tanker as well.

Name: Mack R688ST (1986) Date Added: 06 September 2009 - 03:18 PM Owner: odiie Short Description: None Provided View Vehicle

Thanks Rob, yes it does run fine once started. I'll try the temp line.

My new pride and joy starts right away but only fires a few times then it cranks for quite a while. Where is the most likely place that I'm losing my prime. I assume thats what is happening. No obvious outside leaks. How do I diagnose this? Any help appreciated.

Thanks for the information fellas.

I'm trying to find a new firewall insulator for my 86 R688. Mack says it is not available. Where can I get it or what can I use as an alternative?

I can't hear a miss it just sounded strange because of the high idle I think. Just makes me wonder if I'm missing something ya know?

Couple of questions, I just bought an 86 R model with a 350 6 cylinder in it. I was told it had a miss in it but it drops rpm on all cylinders if you crack injection lines. Any other way to find a miss? It was idling at around 800 rpm because of a jake switch interfeering with the throttle rod. Could it have sounded like it was missing because of the fast idle? Also on the injection pump right above the throttle shaft is a screw in a long locknut(the nut is about half inch high) what is it for? Idle stop? Thanks for your help.