Duke Blue

Well, thank goodness, I've found the problem. First of all, I have rebuilt the supply pump. Every time I used the primer, it would leak fuel. I figured that it had to be taking in air at the same time. But that did not cure the starting problem. After that, I took into consideraion that the fuel tanks were not of Mack origin...(they are freightliner tanks)...with the help of a couple of good mechanics at my place of work we came to the conclusion that my Mack needed a check ball installed between the tank and the primary filter to assist in holding pressure. So far, I've let it sit for 48 hours and she started after a few revolutions!! Thanks for everybodys' input...I'll post a pic as soon as I figure put how...I'm not much of a computer guru....

I appreciate the input from you fellows, The silicone starter fluid seems like a good idea...I'll get some right away. I have tried the 1/4 to 1/2 throttle start...it doesn't help. I work for a major trucking company, when I first started years ago, we had air starters...mechanics used ether all the time to crank units that had been sitting for a while. I can start my Mack and drive it 20 miles or so...let it park for a couple of hours, and it will need a squirt to crank. All it takes is about a teaspoon...2 or 3 turns of the engine and she fires right up...I don't think there could be too much wrong....I just can't accept that I would have to ether a motor after sitting a couple of hours. Thanks for your help....when I figure it out I'll let ya'll know.....JDB

Well, I've done it! I found a 1964 B-Model Mack. Bought it....had it towed home because I didn't trust it for the 50 mile trip...flushed the fuel system....got it cranked without a lot of trouble. Now I've tagged it and driven it about a hundred miles.....tickled to death!! Now I need some advise, I can't get it to cold start without about a teaspoon of starter fluid. I've tried the primer...it doesn't help. It runs great after its' started, it just won't crank when cold. The engine spins as if there is no fuel to light the wick......do I need to rebuild the primer pump? If so, a recommemdation of where I can find a rebuild kit, or a remanufactured primer pump, would be much appreciated. JDB

I'm interested in buying an old mack....saw yours ...can you maybe send me some pics, any history, mechanical or otherwise about your truck. I'm in NC...so I'd like to see more of it before taking the next step. Send anything you can to flattopduke@embarqmail.com Thanks ahead of time Duke