Lmackattack

Larry. I am Suprised he dosent stop over hear to pick on us mack guys...LOL

I looked into this last week. the electric motor looks as if it bolts directly to the firewall where the air motor is. I think the wiper motor , wireing and control switch is all you will need to convert it over. on a side note I decided to stay with the air motor. The air valve was causing problems with the wiper control and speed. bought a new valve for $60. and all is fine again

if you are hooked to a trailer and pull the yellow one I think the red pops out also. when the blue is pulled the yellow and red stay in.. I move the truck every day and never stop to think about it but I think thats how mine works

I have driven a V8 Detroit in a prevost bus and the twin pyros said the EGTs heated up real quick to 1150 and held it there My companys 550 cat will climb to 900 and hold for a long time before it gets to 1100. I havent found a hill east of Airizona that I have to worry about EGT,oil,trans etc.. temps If im out in CA on a hot day pulling hills on I-5 I have had to pulll over and let my EGT, trans, engine oil and water temps cool. guages can save you from a real bad day!!! All the diffrent engines work the same (basicly) but they will all have a diffrent over heating points of the componets. maxidynes flow alot of fuel at low rpms, when that turbo boost falls off. things will get hot [quickattachmentid=655]

blue is tractor park yellow is tractor and trailer park red is trailer park

900 deg is 100% fine. where is the EGT probe. most are after the turbo where temps are a little lower than what the cyl temps are at.. make shure the "new" pyro guage is calabrated to the specific placement of the probe. I start to worry around 1100-1150 and dont let it stay at 1200 for very long. At WOT the lower the rpms the higher the EGT temps will get. down shift or lift up a little. more fuel will make EGT temps rise if the turbo can not put out the needed air to keep things in check.. more air alows the extra fuel to be burned off. you can get more power with added fuel but you will reach a point that the excess fuel will just cause high EGTs. I see 1000 deg temps with my truck and it gets a little higher if the boost starts to fall off lugging it with a good load holding me back.

the signs are posted all the way out to the west coast . most signs say "excessive engine brake use is not allowed" or something along those words.

kINDA LIKE A POOR MANS WATER INJECTION I can see how a mist of water is safe and actuly good for the engine but you know there is going to be a day you drive through that huge puddle and a massive amout of water could get sucked into the tube? that can cause an expinceve repair if it gets to the engine.

I always wondered how good or bad they were when it was raining out? looks like it could suck in lots of water even with the gills on the sides? I know they were used alot Down under because of the dust. Wonder if the ram air effect helps power at Hwy speeds? I like the looks of them. trent

hope this helps Trent

I have no mechinacal info on how the 6cyl jake can be improved but I have driven a few macks with the Jake brake and they all performed poor in my opinion. At best they would slow the rpms but never could hold back a meduim loaded truck. I think the reson is because of the smaller 673,676, 675 etc... displacement engines??. we have an E9 at the yard with a jake and it stops much better than the small 6 cyl. Trent

I have driven a few superliners with electric powered pass window. If I remember correctly it was a black box mounted to the door that housed a motor and gear for the window regulater. It was ugly looking and blocked some needed space in the passenger aera. Im not shure if you can still get these motors. air would be great but Im thinking you would have to "re-invent the wheel" so to speak

any good truck stop or chrome shop will have the spring hangers. some will just have a coiled rod that will relive some stress and then ther are the expencive ones that will have a spring inside the tube to help keep flaps on.. no ,matter how much the flap holder bends. the flaps can still tear off easy...sound to me like all you need to do is adjust your mirrors!!!! LOL... Just kidding! the dogs can be found on ebay. I think the dog you want is the ones used on the ash trays? somone here will know for shure about this .. Trent

thanks for the pics. some great looking trucks in those photos. please scan some more when you get time. Im shure we all would love to see more !!! Trent

wonder why the alum panels and doors never cought on with mack? Steel is stronger but if weight is a big issue an alum cab could save alot. The later aluminized cabs seem to hold up pretty well.

what was the issue between the G model mack and KW claiming that it looked to simmilar to there cabover?

a frind of mine with a BCR has the thermodyne emblems. first time I have seen them on a R model

I have noticed that on the R models (possibly B models) that the "V8" emblem is used if its a Mack motor. the detroit powered R700s did not have them.. could be wrong but what I have noticed and heard as well?? any truth to this? Trent

Tuff looking mack. wouldent want to get its way!! what do you haul in that monster!!!!! Tuff looking mack. wouldent want to get its way!! what do you haul in that monster!!!!!

welcome to the site. this is a great place to talk abuout Macks and those other so called "trucks" lol Trent

I saw that episode also. I was thinking the same thing

Great topic Doug I think all models built there were mentioned so far but I have another question..were some of the later B models and L models (altho not built in hayward) directed to the "western" owers. I thought I saw an item for B models on ebay a few years back with "western" on the title page.. could be wrong? wish I could find a pic of it again. also how common were the RS600s tractors (not the later valuliners)back in there day? I tend to find alot more RS700s and Valuliners in for sale ads Trent

If you want it portable or liftable by your self or 2 people. your design will work, like I had said above we use a hitch simmilar to your drawing for sled pulling. 2 people can lift it and lock it into the 5th wheel but it makes life easy with a machine. If you made a smaller version of what sled pullers use I think it will work for you and be portable. just have a good welder fab it up for you!!!!! Trent

you dont need the clutch for shifting just to start from a dead stop or for the clutch brake pto etc...

Question I have the old style wiper motor on my RS. ( looks like a half moon shape). the air valve switch was faulty so I went to the mack dealer and they said there is 2 style switches. they gave me the "new style" that is slightly smaller than the original one. are these switches interchangable? they look like they will hook up the same way but will this smaller "new style" switch operate the air motor the same? Trent