AZB755V8

If that is the price that turbo can be purchased new from a speed shop for that. Chances are the exhaust housing will need changed to work on a diesel. Checking on Jegs Speed Shops the housing are about $170. The reason for a change will be when you want to start making boost. The smaller the A/R number the lower the RPM's to spool the turbo. Other thing is the amount of boost, these turbos will make 50PSI Plus with no issues. Injectors and pump need to be worked on for flow and timing to balance the increase in air going though the engine. If you have emissions testing I would not do it. With added PSI everything else need to be looked at. It is not as simple as bolting a big PSI turbo on and go like hell. Head bolts, couplings and gaskets seem to snap or fail at elevated boost pressures.

Photo's or it does not exist, engine and truck, Please. PM me if Bob does not have the mat he started the post with. The contact I have for a NOS L Cab floormat sold one to me for my LTL. He may still be around and have one left.

No, I have not been to his yard. Been in AZ for 15 years and only back to PA for family and Macungie show a few time since. He is up for new and different things like that JD project. I made the aluminum fender panels for his black and red B75 that he used the radiator for the intercooler and put another radiator in back of for engine coolant. Can't remember if it was an intercooled Mack or Cummins engine. Think he sold that truck years ago.

I know Kevin All and a little on the steering box. When I was looking, some 15 years ago, to do the power steering change over I traded Kevin for some parts and knowledge. The box mounts in the same location as the original, have to drill frame for different mounting bolts. I got a power steering box from him to work with a 6cyl. engine, I have a V8 and this convention will not work for a V8, just no room. Besides mounting the new box the lower end of the steering column shaft need to be cut and a universal joint keyed to the shaft. A short splined shaft mounts on the box and mates with universal joint. Supply and return hydraulic lines need to be run to a pump and reservoir. I still think I have the power steering box from Kevin if anyone is interested. $200 plus the shipping. I'll go look for it if someone is interested. PM me.

Kenny, You are not starting off on BMT with a good note. First we all can read and Bold print is not necessary and is used rarely. As in this thread You must read and not ask if something is sold or where it is located as in another post if the truck is sold, sold ,sold.... especially back in August 2015 as stated here. We are here to help with anyone interested in knowing about Mack Trucks. Your second tip-off was your Frightliner, not misspelled so get with the program good buddy.👍

The Cobra body is polished aluminum with brushed strips. Same material as the original ones built in the 60's. Kirkham Motorsports in Utah has the bodies and frames roughed built in Poland. They then finish the rest here in the USA the customer has to supply the engine. Copper and Bronze bodies are options but way more money and 400lbs plus heavier. This car is a little over weight with that engine at 2600lbs. Fuel adds 270 more plus me. It ends up about 3lbs per HP for power to weight ratio.

No damp roads here but oil at intersections is a big issue. If it rains it is like ice starting and STOPPING. Yes, a Cobra can get out of hand in a split second, that is what makes them fun and a hand full in any configuration. Not for the faint of heart to be behind the wheel. Have had people (women) screaming from first gear on and getting out with a smile on their faces and shaking, no wet seat yet but said close! That was after having them strapped in with a racing harness. This all under 75MPH and in third gear of course.

RR has alway been Adequate in every way, maybe some day I'll drive one, maybe never own one. No.... HP Rated "Just About Enough" and detuned at that, down to about 1000HP at the crank. There are but VERY few places to crack it open due to street conditions, like the boys in blue, without drawing BIG attention. I got a CDL to worry about too. License Plate reads "Venomis" Misspelled but we only have 7 digits to work with in AZ. Funny but no one can USE that kind of HP in the car or truck that was 1000HP at crank or to the wheels. BUT it is nice to know that it is there if ever needed.... 👍

Not a stock 500. This was a sled puller from Wisconsin back about ten years ago known as Thunderdog. The modes were done by Steve Trevetz the V8 Mack Engineer and the inline pump and injector work was at Antrum Diesel. Was wheel Dyno'd in Wisconsin once all together. Dyno quit reading at 1158hp with more to go. Ya, 1200hp was an understatement. I have a smaller turbo, still makes 65psi but at lower RPM's, on it now as it just would not pull a trailer and always "under the turbo" at cruise speed. The silver box in the top right corner is an added Liquid to air inter-cooler, after the air to air, that really helps for short periods. Flows 1.25 gallons a second of ice water for about 15 seconds then ice is gone in a 20 gallon tank in back locker. It does need a huge clutch and Rockwell lockers to hook-up!! It is a 93-94 Black CL700 motor with the factory chrome valve covers.

No custom bunk yet but still planned. The Superliner still has the custom aluminum and stainless locker on it. I got sidetracked for a few years, on my Cobra project. Think I need it more than a bunk, not ready to lay down a lot just yet. This is the Cobra, Yes that is an all aluminum 860 cu/in V-12 that was used in a boat. Stock 1150hp /1200ft/lbs and gets 3.5MPG just driving normal!! It is detuned to actually drive it on the street. Those tires are vintage correct but are no longer on it and 13" wide road race tires are used for traction.

Dirty old hood just sitting around needing a cleaning bad. Waiting for temp to cool down in a month or so, to get out and blow a little smoke, about 110* today.

Went for $8350 on Ebay

https://www.ebay.com/itm/1985-Mack-Superliner-700-Series-E9-16-4L-10-Speed-Manual-24-5-Air-Ride/323309062517?hash=item4b46b8c975:g:UNMAAOSwkSxbKWbW No affiliation but just went up on Ebay a day ago. Current price $5800. Looks like a restoration project with all the good stuff. E9, Air Ride, Right flat top sleeper.

Yes, the B755 emblems as stated above are original. There are B models with 4 digit hood emblems, but very rare. The 3rd digit is an engine designation, turbo, engine manufacture,V8, gas, diesel, etc. The 4th digit in rare occasion is a 6 for a drive axel option, I think. Most models only have a 2 digit emblem but as with my B755 there are the 3 digit emblems. A list of all B model numbers can be found in the back of Mack Model B books by Thomas E. Warth. Thanks to All for liking the trucks, It took a lot of time, parts hunting, money and donor trucks to get them to better than new condition as seen here. 😀

The engine in the LTL is the big brother to a 275 iron lung. A 320 with added piston cooling and tuned up PT pump out of a pan scraper, notice the auxiliary double groove pulley in front of the blower, not normal in a truck. Added the Jake on top in green. If noticed on the interior photo this truck is a 3 stick. Duplex into a 3 speed Brownie, no shortage of gears here. It will cruise at 2100rpm@65mph even with the optional high speed 5.77 ratio rears as spec for 1953. Tops out at 72mph. Yes it sounds like a 275 but after 1500 RPM's, great burpie idle too. A little smoother cam than a 275 but more power.

This is the 1965 B755 repowered with a 375hp 866

A few of the 1953LTL With ALL the aluminum parts in tack.

These hoods haven't been out in the daylight for a while. Just getting a thicker layer of dessert dust, maybe have them out this fall.

Most diesel turbos do not have oil seals. Most gasoline engines do have turbo oils seals. This is due to the the difference in operation principle. Diesels have no throttle butterfly to reduce air flow into the engine and basically run maximum airflow at all times. There is very little vacuum or negative pressure in the intake or turbo at idle. This negative pressure or vacuum will draw oil out of a non sealed turbo and be used as fuel in a diesel. Oil will enter the intake if the oil retune is blocked or the shaft or bearings are worn beyond limits. This is known as a run away, for two reasons, the engine will not stop until the air flow is cut off and run at catastrophic RPM's. Secondly you better run away as flying parts are eminent. There can be a small amount of pressurized turbo air that can enter the turbo housing and return to the crack case thought the oil return. This would only happen when the turbo was creating boost. The higher the boost the more air to the crack case. In a gas engine there is 13-14psi of negative pressure at idle and that would suck oil from a non sealed turbo shaft. Different from a diesel that if oil is sucked into the intake it would foul spark plugs and airflow can be reduced by the throttle butterfly and the engine will stop. One other issue, there can be a small amount of pressurized air entering the crank case though worn valve guides, both intake and exhaust, but this again would be when the turbo was adding boost to the engine and not at idle.

Blow by is caused by an increase in crankcase pressure that is over atmospheric pressure. The only way to increase the crankcase pressure is by adding more (air) and having it escape out the breather or vent tube due to the pressure differential. The seal between the top of the piston (compression side) and the crankcase are the rings and cylinder walls. Scorched or scored walls or worn rings compromises the seal and the result is blow by. Even in some rebuilds the engine will have blow by and after break in decrease as parts seat or wear in. The white or light gray smoke at start up is normally from valve guide seals. Oil leaked down the valve steam during engine shut down and dripped down onto the piston and is burt off in the first minute or so after start up. It is incomplete combustion of the oil and fuel in the cylinders this is more noticeable at first start in cold weather. Until the engine builds a little heat the white smoke will remain, this is from fuel not oil from valve stem seals after the first minute of operation.

Just from what you are saying before and now, it is difficult to help you. Is it still smoking as much after the exhaust leak fix? If someone has been messing with the pump it is anyone's guess on fueling and how hot it was run and for how long. Blow by is due to bad piston rings and, or pistons mainly so the engine may be loose to begin with and needs a lot of work. Blow by is not due to a bad valve. I asked the idle RPM and you say it has a smooth idle. The differences between a cylinder out is 50RPM at idle. It will be a smooth idle even running on 7 of 8 cylinders. Who knows what was done to the truck when a dead man can't talk? There are just not that many guys around any more that know much about these E9's as they stopped making them 20 years ago. My local Mack dealer doesn't even have a Tech to work on an E9, don't think there is one in the entire state. I am the only guy to get parts for one in the last 10 years from Mack in Phoenix.

Grand Rock, Second that. Believe they are based in Ohio. They did not have exactly what I needed and custom made the elbow with turnout, then chromed it. Not the cheapest but have not gotten China crap from them ether. They have or can make about anything and have good customer service. All came wrapped to protect from damaging the finish. 👍

First check the air filter to see if clean. Does the truck have a boost gage? If not get a mechanical pressure gage up to 30-45psi from the hardware or part store and plumb it into one of several ports on the intake manifolds. At 1200-1800RPM's with a load on the pressure should be 15-18psi. E9's normally do not have more boost than that. If it does not get that high then check for intercooler leaks as stated before. If that checks OK them it is the turbo, head and piston or all three. There can be a cylinder or 2 out before these engines really start to vibrate above 1200RPM's or so. I can say from experience that what you are describing an exhaust valve seat dropped and got chewed up. It is more common with the E9's than in most engines. The exhaust seats do not have a good press fit from the factory or Mack reman, and if run a little hot have a tendency to fall out. I went to the Macungie show a few years ago and dropped a valve seat 2000 miles from Phoenix AZ and drove it that way, home, smokin, low on power, waisted turbo from the seat pieces going through it. Still passing everything is sight and smokin out all along the way. That engine had reman heads with 18,000 miles on them. If that all checks OK then start looking at the fuel pump and injectors. Why did the the guy say he was selling the truck? How many miles on it or the rebuild? What is the idle RPM? Should be 650.

I have a NOS set of B cab door glass in the mack box from Tidewater back in the day , no vent. PM me if interested. Edit: Found the box and there is the two piece tinted windshield for a B Cab in the box. No side windows, anyone need new front glass shoot me a PM offer.

Yes the engine emblem is only on the drivers side on any RW that I have seen including mine. The Mack script and Superliner emblems are on both sides. The RW hood is drilled and counter bored through the secondary fiberglass support on the inside of the hood but only on the drivers side. I got 2 new Econodyne, as an E9-500 is an Econodyne engine, emblems to put one on each side when repainted but will only use one as I suppose Mack always intended. The hard to find NOS V8 emblem, in chrome, will however be on both sides but were not original to a 1988 RW. Might have been a sin but I had 2 NOS Gold V8 emblems show chromed for the RW. If I remember right the Gold V8 and Dog emblems were for Maxidyne engines originally. Later for the Elite package. Also remember when those V8 emblems were $65 for chrome and $95 for Gold from Mack back around 1995 and I thought that was crazy.