Lmackattack

thanks David I will chase the dimmer-headlamp wires....

Chasing a wireing problem on my RS. I have Hi beams but no low beams. I flip the dash switch up and my center cab lights go on but I have no low beams. Step on the Dimmer switch and the hi beams come on.. Power is at the dash and at the floor dimmer switch, when I step on the dimmer switch it does move the power to both terminals for hi beam and then back to just one terminal for low beams. I think I lost power between the dimmer or the dash switch. I say this because I cant locate the low beam power at the terminal strip on the fire wall.Hi beam power is there.. Im Not sure how the the wires run between the dash,dimmer and fire wall... any hints.....

thats got to hurt mack. Pendot has to be the largest buyer of their plow speced trucks. I think AZ has some but not as many. IH is the leader by far....

Yeah stupid snow....we got about 5-6" of snow overnight. Went to a Friends Christmas party, left at midnight and Hit a deer on the way home. It was on a 2 lane road farm fields on both sides of the 55 mph street. I was doing around 60MPH snow was falling hard,roads were covered but I have snow tires and the car just grips the road with ease..I saw the deer out of the corner of my eye at the last sec. He took a leap out into the road and bam! never even slowed. never lifted. Shes screaming thinking were about to crash off the road. I had to let her know it ok to to open her eyes. WERE NOT CRASHING, no blood and were not stopping. Im laughing and shes crying LOL. We hit him with the left front of her LexusIS250. Deer luckly he went flying over the car and did no damage to the windshield or window frames. Hood,bumper,and headlight took the hit, Windshield washer tank cracked, hope thats all. Funny part is she demanded we take her car out last night instead of mine!!!!!

yeah... lets confuse the crap out of it. how about we go back to 10 on 8 off?

yes they can, if the radiator is out it also makes life easy. and IMO with the truck that far torn down its a lot less work to pull both at the same time. Think ahead and make 2 support legs to bolt into the LH/RH rear trans/motor mounts so that you can put the engine/trans down on the ground and it wont try to roll to the sides. I have pulled 2 b model engines out... Diesels/quadbox and both times they came out easy with them bolted up. they are heavy tho. a small bob cat will not lift it. you will need a rubber tire loader or a backhoe. I would not use an engine hoists unless its HD and can get some reach safely

if the cab and front sheet metal is off its easy.. pretty much like a 350 chevy. remove wires, exhaust, driveshaft, put a chain around the rear mounts and use the head bolts for a front mount. some had hooks up on the head bolts already... Triangel the chains. pull it up and out...easy with all the other stuff out of the way

speaking of bottle rockets...http://www.youtube.com/watch?v=Wg5CgNx_sJI

Heck....they all ride nice when your at 80K gross. LOL

Mark the first time I ever remember seeing a MH it had a paint job just like yours. I remember it well because there was 2 of them ,same paint job, and both were pulling an end dump. They were working near a creek that passed under a major roadway in town. the trucks were backing off the road and down to near the edge of the creek. Problem was the cabovers were to tall to fit under the bridge to get to the backhoe. The R models fit under just fine LOL...Sharp trucks but not the best for construction LOL

RW613... thats the nicest MH I have ever seen. that is a truck that gets noticed. Bet it passes alot of them up also if the pump has been adjusted...

OH GOD if the drivers of Today were in a cab over I would say the Drivers death rates would double! I really feel bad for the good ones out there. they just stay quiet and dont interact like they used to. Seams the last few years I cant even get a bear report or a reply even after I give one. I rarely get a flash of the lights after I pass a truck at night.

yep. regaedless of function,looks,or wheelbase the last thing I want to be is the first person at the accident. and if we want to talk about looks. thats easy....everyone has their own opinions on what looks good and what is ugly

thought that was his name. I think I met him once when I was traveling thru NM I think he came down to the interstate to meet me. may have sold him a bumper or something?

dont forget about the Rmodel window crank, I think they copied that design from the B model?? LOL

Chicago still has a good handfull of R models running around but I have not seen a B model that was working on the road in 3 years. in the past 8 years Most of the big construction fleets switched to Pete or KW when they bought their last round of new trucks . Even Meyer meterial went to KW after being pretty much 100% Mack. they had a few Fords and some Oskosh from the mid 90s but the DMs and R models were there truck of choice untill recently. Seams like every year I see less and less macks around here. on the bright side I still see a few large fleets that have bought some new Macks for lowboy use.

hmmm... your glove box door (back side) does not have the diagram of relays and such.. I think that was the factory location for some of the newer R models? . What about your tail lights do they go off when the relay trips?. just trying to isolate where to look. one other option is to go straight to the junction block on the outside fire wall. find the terminal to the roof lights and see if putting power directly to them lights them up. check the tail lights and gauge lights at the same time. if you can get them to lite up from the junction block that would suggest the short is between the relay panel and switch or from a bad wire in the dash. most of the electrical issues I have had were ground issues or a louse wire behind the dash.

do the headlights turn off when the braker trips? on alot of macks the 3 center roof lights turned on/off with the head lights. the clearance lamps were on a diffrent switch. if those 3 lights come on but are turning off when the braker "trips" it sounds like you have a short to those lights or to the rear tail lights. could also be the dash gauge lights. it will be a PITA to find. Start with the dash panels and see if you can wiggle the switch and make it stop, then check the rear tail lights, if you still on the chase remove the interior over head consol. the main wire loom to power the roof lights,radio, etc... runs just above the windshield. look for a louse wire touching metal or a worn spot. Have FUN!!!!!!

I forget the guys name but he was an active ATHS member a while back. Cant recall his name now. Think he was from NM? I recall some threads he made about fixing her up. Trent

that "sleeper" looks like it was one of those plastic sleepers they offered in the early 80s?. I have seen a few and boy are they small inside.

to get best results you will need to pull the tanks out so you can get them clean around the strapes and hard to reach aeras. if they have nicks in them you will have to wet sand them out untill the surface is smooth again. when all that is done you buff them with 2-3 diffrent pads to get that ultra smooth finish. I have tried to get old tanks to look new and it is vary hard to get right. I have enven heard that some people will clear coat them to prevent the dull look from the elemnets. I dont like clear coat because as soon as it chips you have to remove all of the clear to get them to look good again. Remember that most guys with their show trucks dont take them out in the salt and off road much. most old show trucks use new aluminum tanks or have alot of time to get them perfect. if you work your truck alot just a good buff and wax will go along way if you keep up on them

In all my years looking for macks on the road I have only seen 2 U models with a sleeper. both had small 36" sleepers and Boy were they ugly... LOL.....

Rob glad you found it. how long does it take you to get yourself into a twisted mess to access this tank? Or can you reach it from the top?

a 350 with a 9 was a good combo for over the road truck. THe 12 speed was both on and off road and had all the gears that you wanted when loaded. Bonus was you could drive it like a 5 speed empty, you had 5 reverse gears, a extream low low. However there may be an issue with your current Rear end ratio. you may need a faster ratio to go with the slower ratios of the 12 speed? the 9 speed has a fast OD and if I recall the rear ends used with it were commonly in the 4.42-5.02 range. With a 12 speed you would want something in the 3.87-4.42 range to get the top end speed and good pulling RPM. All of this needs to be calculated to see what your RPM split is and what the top end will be.

Working for Gully? hes an active ATHS member. never met him but he is a well know die hard Freightliner owner. Hes not impressed with them lately and was looking into macks because of the issues at Freightliner. good luck with the test