R.E.D

Since I bought the rd I fixed minor details that are normal with an used truck but now I might be over my head..

Truck seems to consume lots of oil ...as much as 1 gallon a week....!!

It does not have any engine leaks ,it does not smoke much and it gets the same gas mileage as my 98 ch613.(which only has 300k & its very fuel efficient)

In the past cold mornings it has refused to start but with ether and I have begun to think that since it has 614,000 miles and 24000 engine hours it might be time for an overhaul.

Truck runs like a champ like the rest of the bull dogs in my small fleet yet this issue concerns me.

What is the best way to go about repairing the engine and since I assume its a bad compression issue due to worn rings or sleeves , what kits are available to fix this issue.

1996 rd688s , 350hp coupled to a 9 speed maxi.

PS:On mornings with normal temp the truck cranks and fires unenvenly for two secs and it goes on to normal idling.Also al filters changed 3 weeks ago..

Please help!!

RED

I realize not everyone is into buying junk like Ido,but it blows my mind nobody has bought this yet. No old Mack lovers near Houston? It's even got a title!

Plenty of mack lovers in tx , I would pick it myself but I need the budget to get my RD back into shape ....the tranverse rod and bracket that I need is not cheap and im having a lil bit of trouble finding a used one..

I will look into it...gonna see if I can arrage towing at a reasonable price

I spoke to the guy...since hes only 15 miles away from...he wants it gone asap and wont part out...im in need of a transverse torque rod and bracket...

Sure right bout the numnuts in chief messing up the coal industry...lost big in stocks when Obama was re-elected

Had the same issue with my truck a month back...same symptons...I was without work for a month ...ended up being the ecm...pickup up a used one for 800 bucks after I plugged it in and fired right up...lik3 the guys said...source out an ecm from a buddy and try it..even if it dont have the same power ratin it should start ...then you can go off from there....also make sure you unplug batteries when dealin with the ecm...

You guys have done it again!!! Thanks for all the support and help...I will start searching salvage yards for a set up like this...thanks a bunch..!!......RED

Oh man!! I definitely dont have that..that seems like it would solve the whole issue

Can anyone post a pic of how the torque rod sits as installed in a truck...and how much am I looking at for that part.Part # 9 is severely worn where the arrow is pointing , all four of them!!...can I just run a couple weld beads to return is shape or it would not matter after the torque rod is in place..

(fyi the diagram above I took off the web to show what I was trying to say, its not an exact representation off what is in the truck).

thanks in advance

RED

ok will do first thing when I get to the yard..will keep ya posted...

As I mentioned before on a different tread...I purchase truck in avatar because I believe it was a great set up for the work I do.96 rd688 with a 9 speed maxitorque..my rear suspensions has a lot of side to side travel when taking a turn (as much a 6")...Thinking it would solve the prob I had the trunnion bushings replaced along with the rubber supports for the springs..but still the issue persists mostly when making a right turn....Also it looks like previous owner ran truck with bad trunnion bushings for a good while cuz all the four botton caps (see pic below) are busted in from the spring constant rubbing.Trunion has no outside cap so im guessing its 38k but im not sure.truck has a very short wheelbase which I believe contributed to this whole deal.Im running out of options and don't relly feel like spending another grand on parts and labor...things got so bad that chassis smacked against a axle side cover and cut a whole in it and oil was everywhere..please advice on this matter.

thanks for your support

RED

Anytime

Bad injector cup ?

does it smoke? What color smoke?

Ok thanks for the advice guys..I really appreciate it

If the parts are worn ..how much would mack charge for the rebuild kit?

I believe I saw no lines air lines coming from the power divider. .except a couple of them that I think operate the brakes...if I do have automatic lockin diffs...how reliable is that system?

Hi guys , im sure this topic has been thrown around but I would like to get feedback on my new purchase(truck in avatar).I want to know if it has self locking diffs.i don't see a switch on the dash and is imperative that I have a good mud truck since I do a lot of off-road.the truck is equipped with electronic 350 coupled to a maxitorque 9 speed.im not sure about the rear end ratios.i bought it because I believe this is a great set up for what I do.Please feel free to comment and any feedback is greatly appreciated.vin is 1M1P267Y3TM027360.

Yea thats what the guy at my local dealership said...he quoted me for $ 1536.fortunately i found a used one for $800 at the salvage yard...shes up and runnin now..im glad there is a great deal of comercial parts here in houston..i couldnt have afforded one of my trucks to have been out for more than one month...thanks a millipn for ur assist mackpro68..in the future i would contact u for info regarding this matter if i run into issues again...

Need this ecu for my ch613. 427 horse..

hey guys thought I give an update.the engine computer was fried..i plugged in another computer and she fired right up...now looking for a used computer for a 96 427...

Batteries are good. Truck cranks strong when I turn the key. I went to the yard and tried the set button from cruise control and nothing happened. Also could it be the unit pumps and how do I know if my engine has them..?

also , one of the mechanics messed it and now the headlights wont turn off.so I have to unplug the batteries to prevent draining (even when I had to recharge them like 5 times this week due to cranking. & the starter has taking a beating too.)

ok will check this out once I get to the yard in the morning.i hope its nothing serious. its been sitting a week like this already.

hi , my 96 ch613 is not firing .it cranks and starts with starting fluid but it wont stay on.it cranked the day before and when I came in the next morning it cranked but wont start..the lightening bolt in the dash comes on so Im guessing the computer its all right.the injector lines have been bled and still nothing.3 mechanics have come and could not get it going.IF ANYONE HAS ANY INSIGHT PLEASE HELP!!