theakerstwo

Hey truckers! Just registered on this site! Glad to be here among all you Mack lovers. Getting ready to purchase my first Mack this week. It's a 2000 RD690S tandem axle dump, with a 16 ft steel body. It has the E7 300 mated to a Maxitourque 7 speed. I am impressed with this ride but the 7 speed has caused some concern for me. She seems to be a bit stubborn even when double clutching. Is she an extended range tranny in so that it should be around 1200 rpm for downshifting and against the peg for upshifting. I am used to an Eaton 8LL. In my trial run with the seven speed I ground the gears alot when I first took off but as my run went on I was getting a little smoother. If you have any tips at all I would truly appreciate your feedback.

Yes just dont get in a hurry and let the rpm come down and dont put your foot on the clutch. you will get good as time goes by. Glenn Akers

How much power can I get out of my 4 valve E6? It is a fuel squeezing 300 now. Im thinking about bigger injectors, turbo, and pump. And possibly a twin turbo set up after I get my other truck worthy enough to be driven by me, lol. But that's later on down the road. If I was to put the biggest turbo i can find on it now as a 300 hp, would it work, or do I have to work the pump and injectors to do so?

Do not set fuel any more than a 350 HP because you will burn pistons and can spin brgs in bottom end.The bottom is weak when you start making too much power.I know you are going to get a lot of advice on more fuel but I started working on macks in 1965 and I have seen a lot of engines spin brgs because too much power ortoo much virbrations.The extra power is not worth it.Leve it set to specs and you can stay in it all day and not hurt it. Glenn Akers

Through my experiences with these kind of deals. I think your wasting your time and good money after bad.

The only person that is going to win is the lawyer. The time and money you will spend with the lawyer could go to your project. I have told myself i will never set foot in small claims court again. It's a joke!! Take your bath and forgot about the loser. It's a hard pill to swallow . Just spread his name all over the boards. It's a small world, words do spread. Good luck on the project.

I know what you are talking about. I have been there and found out that you are only training the people who what you to buy there parts and install them and then get you to stand behind the job and then dont whant to pay. Then the court will agree with you that they do need to pay you and that is all they cane do far you. Bill clintin showed us how to handle the court.

On a international 4300 i drove at the international truck tour they had a 3 stage jake brake on the dt466. it was STRONG! On the 3rd setting and let off the gas it nearly threw me thourh the wind sheild! The system has a bleeder brake in combination with an exhaust brake. The cat powerd 7600 had a jake and it was very strong. I guess it depends. Must stop drinking.

I never did see one of them jake brakes on a DT.May be a new deal.But they ant big enough to be too powerful. Glenn Akers

That's the first upgrade I would do if I drove truck! It's a long lonely road without good tunes! LOL

In my B you would not be able to hear a radio. but the radio was a in the roof mount where you whant it

and it had the antania on top that wkent thru the roof and the radio was held up by the antana and the spear was in side the radio so you want it close to you head to hear and then you would hit a bump in the road and now you head has sores .That is on a B I wolked for the Tulsa Mack in the mid 60s and have installed

alot of then on new trucks the B was still in production when I started out as a mechanic. Glenn Akers

Has anyone ever installed a yoke on the front of a transmission (like say a T2050) and installed it as an auxiliary?

no

It has a power divider. It doesn't have a manual control. The power divider will engage itself as needed and provide power to the front axle. Running on the road there is only power to the rear axle.

That is a common ideal that I have see and told by truck driver for my 42 years of working on trucks that it will pull on the rear only. It pulls on bothl rear equaly because it has a power divider with a air lock or not.

Glenn

I have a 1965 mack dump truck with a thermodyne 673 engine (I can't find the serial number). There is a plate on the rocker cover that says to set the timing at 26 degrees, but there is no timing mark on the damper. Does anyone know where the timing mark is on this engine. Someone suggested it is on the flywheel, but I can't see how to get to it to see. thanks Blake

On a conv. it will be at the bottom of the flywheel houing on the flywheel and on a cab over it may be on top of the flywheel housing andif it is a latter engine it will be on front damper. glenn