rad45

Name: Mack B75 (1965)

Date Added: 15 July 2010 - 07:48 AM

Owner: RussellAD

Short Description: Standard B model cab with separate sleeper box on behind. Wriggle through the rear (enlarged) window apperture. Bostrom air suspended seat.<br />END 673T with Jake brakes, 5 x 4 box, camelback rear end. Not sure of the ratio but it does 63mph at 2100rpm according to my satellite navigator. It's in so many pieces I'm ashamed to photograph them all. Engine is rebuilt as are the main and joey boxes. Diff magnets were clean and they are both silent so I'm leaving the centres alone for the present. Am lengthening the frame to take a Palfinger hyd crane 1.5t and a 22ft tray behind it. Be able to use it for taking my hobby stuff around then. I run miniature steam locos. About 400 to 1000 pounds each; so that is why the Palfinger.

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Looking to be a "cheap Bastard"..........

I need a lifter and Camshaft for an 88' E-9 in a superliner the exhaust lifter on #6 wore the "mushroom" off. and did a little groove into the cam lobe... What in your guy's opinions are my options... My local mack dealership quoted me about a grand for a new cam, about 140 per lifter, and said I have to change out the puchrods at the same time, to the tune of about 26 a piece all total about 3700 plus gaskets yet. the truck hauls silage about 600 hrs per year. I don't really want to take it apart twice. should I bear down and go all new or can I mix and match a used cam (if I can find one) with a used lifter. Any advice would be appreciated!!

Chris :SMOKIE-LFT: :SMOKIE-LFT:

Hi Chris,

I'm writing from Australia so my suggestions may not totally fit with your situation in the US. I would start by talking to any Engine Rebuild companies around your area. You do not need a Mack specialist but rather an engine rebuilder to see if your old cam can be refurbished. The same companies that grind cams for hot rodders often grind cams for trucks and big marine diesels also. I would defiitely put a new set of lifters in. If one has died the death, there is a good chance the others are on their way out also.

Which ever way you go on the camshaft, you are going to need to flush out the oil ways through your engine to get all of the gunge, that was parts of the cam lobe and the lifter, right out of the engine lube galleries. This muck could already be killing your big end and main shells. If you have not pulled the engine right down, when you get it running again, I would be changing the oil and filters every two hours or so maybe four or five times. It will cost you in oil and filters but could save you a block and crankshaft.

Hope this helps,

Russell Dunn

Perth,

Western Australia