Lmackattack

nice rig!

from 0 to 125 psi takes my R model w/new compressor about 4-5 mim at low idle RPM at high idle takes about 3-4 min

UP Big boy 4-8-8-4 p.s look at the front axels

Glad you found part of the problem! let us know how the new nozzels work out.

This place HK?

looking good glad you got her home. some degreaser, and fresh paint should bring her back to life quickly Trent

are the slacks and S-cams greased up good? they can start to stick after sitting long. jack up each corner and see what wheel is not released, the wheels should all turn by hand with not much effort. if that hand brake is the issue the pads are sticking and the mechanics of the assy needs grease or some help. Go for a spin and see if the park brake drum gets warm/hot Trent

Cool find there! Would love to see it in action against the oem engine. Trent

anywhy?....EPA

Rob i just looked in my mack service book that the mack museum sent me for the old B model and found something that maybe the issue but not shure? Page 4-11 it does not show the "v"style pump but discribes a device that advances /retards the fuel timing per "x" RPM. just a thought.. i dought its something you have on your pump. but.... Trent

Well boost seams ok. that kind of press is very good for an olddog. i get 24-28 with the fuel turned up on my 6cyl. i guess you need to check the fuel return and injectors now? it sometimes only takes one bad injector to throw alot of smoke. My RS throws clouds only when i have the puff off(dash switch operated)When its operating normal it has a grey hint from the stacks after each shift. Hopefully FJH on this site sees this. He knows the old V8s pretty well. my 6cyl barly starts below 30 deg. plugged in she fires right off unless its -0 and below then she chuggs a little.

!! :ttiwwop: !!

how is the boost from the turbo? my guage reads about 1 lb of press just at idle. if the a/f ratio is way out of wack it can blow alot of black under a good pull. Before i found that i had a bad turbo on my truck i was throwing a good trail even with the puff working. can you check your fuel retern press? Trent

im not up on the old V8s Rob. i want to say the E9 has a puff but its a newer engine. Does your pump have an air line to the front or back of the pump. is the pump a "V" or inline ?

"East" coast R models all had the wider rails up front. Only the western RS/RL "R"models had straight rails. My advice is to register the truck with the B model title as the emisson laws are less strict and you could put cheep historic tags on if its not for hire. insurance is also cheeper with vintage tags!

Air ride is for over the road or limited off road use. There are some "offroad" air ride set ups out there but they still cant beat springs in the offroad. Camelback is the way to go for traction and simplicity in the off road. A spring ride tractor with an air ride cab will cut alot of the harshness out of rough roads.

you made my night HK! HA HA! wernt some of the latst duplex models quiped with an air actuater for the aux box??? never seen one in person (up close)

my 285 Mack gets 5.5 loaded 6 empty. Drove out to NY and Back a few years back loaded one way (R model) and we got 6.5 avgMPG ...350 w/9speed 5.02 rears thats pretty good for me

LOOKS TO BE AROUND LATE 7Os EARLY 80s? ARE THOSE DM CABS? AGREED...VERY SAD!

Im in shock right now... Im not shure if its to radical or a great trend is started. I see a KB grill and fenders from trucks of that era. The headlighs look out of place but its a good start. I give IH big credit for trying something diffrent here. I think If mack could

Yes the "old school" mechanics pull both heads with the intake and exhaust on just take the turbo off and its a fairly straight forward job. just bulky.

Thats a hortan fan clutch. around $130 dollars from the mack dealer. They work like this. When the engine is started (cold start) the clutch should be "released" alowing the engine to warm up, you may see the fan spin ,this is ok as its drag from the spinning water pump alows it to spin slowly. when your engine temp gets above "X" temp (mostlikely around 195-200) the thurmo coil enguages the clutch to spin the fan. If the truck is getting hot in this cold weather i would think you have a diffrent issue. I can run a winter front and pull a load in 15 deg temps and the fan might kick on a few times on the highway. local roads the fan stays off. If the winter front is off the fan wont turn on all day... check the thurmostat, guage and sending unit to make shure those are not issues.... Trent

Well i buy alot of mack parts just for the support and ease of getting the right stuff. However I would rather make myself an exhaust for $150-$200 than pay volvo $800 for one pipe. You say your not mush of a Wrench so that doesent help you much LOL... I made my own dual exhaust with some crome 90' elbos "t" pipe and then used aluminized steel from under the truck to the turbo. only flex pipe I have is a 1" sectio from the turbo down pipe to the long pipe to the stacks. only reason I used it was because I was in a hurry. most expencive parts were the $90 mufflers. I still plan on making a down pipe from the turbo to connect to the rest of the system elimanating the one flex joint. Start getting good at making your own stuff. Volvo does not want to support the older dogs and they will keep on keeping on with that attitude.