davehummell

66dc75 That looks like it. Where are you located and how much are you asking? Thank you Dave

Well I thought I would give a update on this disaster I bought. I did a compression test as mack recommends and I only had 375 lbs at 1000 rpm mack states it should be atleast 500. So I pulled the  pistons out  but no resistance when I pushed the rods and pistons out  Liners were glazed up real bad  the 6 injectors that were bad didn't help any. Piston are good, rings are weak on tension. I have dealt with cook brothers truck parts for 25 or so years so tom and jeff found me ring sets and 20 under rod bearings. I guess I will pull the mains and see what I have to scare me some more. Dave

Hello, I am looking for an exhaust manifold for an  end 673. The rear section on mine is no good. Thank you Dave

Gearhead, I agree with you I can't count how many of them I changed when they would not self adjust. Boy does the dot love to write up out of adjustment brakes, I don't think a lot of drivers really understand anything about the trucks they drive down the road and I have seen them time and time again get in and go without looking the truck over I found some didn't care if it had oil or antifreeze in the engine . I spent more time keeping an eye out for stupid shit they didn't see like flat tires, lights out. Underdog as I said before if your cam bushings have some slop they will not adjust as good. I think you are right about over adjusting them, I had one guy that drove like a madman with heavy loads and he adjusted his slacks all the time and I had to change his more often.

When you install them don't forget them, If you got slop in your cam bearings they will not work as good as you wish they would. grease them often and keep the cams greased. I had to keep after them on rolloffs and frontloaders.When  city driving I found I still had to adjust them. The other place I worked had long haul rigs and I didn't have to adjust them  as much. The kit should have a gauge in it read the instructions and you should be good to go.

I don't know the history of this truck. The first thing I did was replace the filters  and fuellines and fittings that looked suspect and then I replaced primerpump and pulled off the transfer pump and seated the poppet valves. and  replaced the metal return line and rubber compression rings on the ends plus removed the check valve and made sure it worked. added gauge in line, now I know I am not losing prime. The rear head was leaking oil an I can't stand that so I pulled the heads and cleaned and checked the deck and heads with a machinist straight edge I seated valves up with paste and checked with srewloose spray they were real good before I touched them up. It shows fuel out the exhaust pipe now when you crank it. I replaced the 6 injectors with ones I had checked on a tester. just now I went out and squirted oil in cylinder and it went from 300 up to 400 so that about says I will be looking for at least rings or more parts .

At my age I figured out I know a lot less than I did when I was in my youth. So I have to ask what is dusted mean? I guess I had heard it before but I can't remember it. I am going to end up pulling the pistons and rering them. All 6 injectors were just pushing fuel so I think the cylinders are glazed, before I do I will try to reseat the rings with bonami cleaner we sometimes had to help out an engine on the dyno.

Ten years from now you will be doing something with tools and think about the wrenches you did have. I found the new tools were just not the same as the ones I had.It doesn't take many tools to add up in the thousands any more. Good luck.

I am sorry to hear about your shed but from the looks of it you are lucky that trailer house didn't get going more then that. I lost a garage to fire and all my tools years ago and I still think about what I lost back then. Its a tough thing to deal with.

This truck has me really thinking, It will not start when its cold without just a wiff of ether. I replaced fuel lines and fittings to were it keeps the fuel right there. I had the heads off and replaced the gaskets and went over the valves . readjusted valves and looked things over in the cylinders no damage in liners or piston crowns. I got 6 different injectors but I am going to have them checked 4 don't hit as hard as the other 2 they do slow the engine down when you crack them open. If I have to I will send the pump out to be checked. It seems to have equal pressure when you loosen the lines but that is just judgement call on the pump. I Thought it should have more pressure on cranking but it seems funny that all are that close and 300 lbs. I think this truck sat for a spell when I first fired it up and let it run for about an hour it slobberd oil out the exhaust ports, manifold is not on the engine so I could watch the ports. I then took it for a drive out around the block about 3 miles and now  the ports are dry as a bone so I wonder if I run it 10 or 15 miles if it would help it ? Thank you every one that took the time to respond. Dave

Hello, I would like to know what the cylinder cranking pressure should be for a end 673 I removed all the injectors and made sure the batterys  were up and I got 300 lbs on all 6. I wonder if it is to low? I think the 675 or 676 were 400 lbs. I just cranked the engine like you would a gas engine. Thank you Dave

Friday I drove up to a guy's shop in new York . He sold me 6 injectors and a complete later made headliner kit it is used but it will do the job. Plus I got the two floor mats  and a sunviser. It was a 320 mile ride but I think well worth it. Dave

I just took my injectors up to Dunmore injection and he says all 6 are just spitting out fuel no pattern. charley says no parts are to be had but he can get injectors from Mack. I can just bet that will cost too much. It is for an END673. Any ideas? I called that place in Philly and they want 125.00 each, I am just looking for options. Thank you Dave

Thank you, I found one on ebay . It covers my 673 . Dave

Back in the day I had to sandblast caterpillar equipment before I painted them. Good hand protection,thick coveralls,outside air feed with a helmet that covers your whole head, I used black beauty . Try to seal up your clothing the best you can I really got dirty. When you sandblast a D-9 your there for the day. When I was ready to paint I would blow off the machine and wipe off some of the areas. We didn't think about air quality back then but it wouldn't hurt to use a paint mask. And try to have some way to have dry air to you and the blaster. Good luck Dave

I need a shop repair manual for my engine all I have is an old motor book that if you know them everything you need to know is not in there. Thanks Dave

Can you buy a spring for the return check valve? I took it apart and lapped the poppet to the body with compound. Someone had used an old screw to up the pressure. I have 16 to18 lbs when running. When I pump the priming pump I can reach 30lbs and It drops off within 15 seconds to zero. I don't think it should do that. Thanks Dave

Hello everyone, I thought I could get some Ideas from someone smarter than me. When I picked up the truck I had to use ether to start it so I figured it was losing fuel prime so I put a gauge on it and ended up changing the feed and return hoses and one fuel filter hose and I change the fittings they were suspect. I now have correct running pressure. How long should the pressure stay on the gauge when stopped? I have new batterys and cables and it cranks plenty fast enough but I think it takes to long to fire off. I think I shall adjust the valves just to be sure if I find some valve cover gaskets. I hate to send the pump out to test god only knows  what that will cost. thank you Dave.

I took it up the road to my buddy's house an it steered good enough i'm not bothering to go the powersteering route. I have been busy changing fuel lines and I changed the primer pump got a new one from Dunmore injection for 22.00 bucks. Found an air seat at boots and hanks truck junkyard that will fit so I can see more than just the top of the hood. If I can figure out how to put pictures on here I will I only have a digital camera.

those are the clamps mounted to my floor. Is that green cover like a rectangle shaped box that sets on the floor? Thanks Hobert 62

Looking for the cover for a b 42 cab. Thanks Dave

I just don't remember about this. There is a rectangular hole behind the shifter levers with two holdown clamps. Was this for the parallel switch? right now I have just an opening that someone screwed a sheet of tin over. Thanks Dave

Underdog, The pump is the style mounted back off the frame with a drive shaft. This truck had it mounted on the frame behind the cab but no pto. Dave