kansasflyer

Does anyone know when Mack began   installing shoulder belts? My ‘82 Superliner has lap belts only. I’ve seen cars from the ‘70s with both shoulder and lap belts. I can’t find any legal publications on this from the FMCSA. I’d like to find something in writing exempting my truck if that ever gets brought up in an inspection. 

Here’s another curveball: My 82 RWS788 sure seems all original. It has an all Mack engine and power train. It also has a weathered chrome bulldog. I’d like to know why it isn’t gold. Again, everything seems original.

On 8/9/2021 at 7:19 AM, terry said:

If that is an overdrive 12 spd. with them 4.17's it will be a runner!!   terry

I believe it is. Previous owner had it up to 78. That’s plenty fast for me.

On 7/8/2021 at 8:49 PM, samiam said:

I am now 63. My dad had the exact truck. I grew up using them logging as well. We had two trucks for parts. Why not. They did a decent job back in the 80’s and 90’s.  I get tired of being so slow on the roads and hills?  OMG!

I still have the truck. I inherited his. 
ive redone it top to bottom. Red dot on cab top.  New drums, chambers brakes. New paint and lettering. 
it’s sitting in my Barn. We have been loggers for 5 generations. I have 300 acres of prime timber to log still. Dad never logged his own land. 
I intend on short hauls or just out of the woods. It’s a straight truck with pintle hook log wagon.  237 and the 5 speed, no front brakes. June of 1980 and prior were grandfathered in. 
I have the 6 speed to put in it. I’m getting old fast. Hoping to log our woods with my adult sons. Share the money. They own tree service companies now. They would love it. 
just have to go do it. 

That truck is truly part of the family! Nice.

Thanks for the welcome from everyone. Glad to be on the forum.

Question: This has probably been duked out a million times here and every other truck forum: Is it okay to run synthetic oil in these old E6’s?

Also, what about synthetics in the drivetrain? 

Thanks. If he had his way, he’d ride up there beside the bulldog. Lol

Thanks everyone for your input. When I came across it, it was being used on a farm in western Oklahoma. My guess is that it was originally an oil field truck. I’m torn over restoring it, or finding something newer, like a 90s CH model. Another question: How difficult is it to install A/C on an old R model? It is NOT factory equipped. It is a day cab. No sleeper.

I’m looking at restoring a 69 R600 for logging use hauling logs from the woods to the paper mill. It has a 235 Remack engine from 1978. It also has a 5 speed tranny and 4.17 rears on a camel back suspension. Would this be a quality candidate for hauling 80 to 90k # loads? 
 I’m not a fan of it’s spoke wheels and no brakes on the steer axle. Not sure how DOT will like that.

I'm sure a water cooled turbo and after cooler can be fitted pretty easy.  Finding a water cooled exhaust manifold that fits a Mack 675 might be tough. I wonder if a ceramic coated manifold would be good enough? I plan on leaving the fuel pump stock. With a big enough after cooler, I wouldn't think the exhaust would get too hot. I have seen people simply add more ventilation to the engine room with some success!

Thanks for the info everyone. Manchester Mack still has a few limited parts in stock for a marine E7. Sounds like the T675 was never intended for marine use, so a lot of creativity may be required! Since Volvo has their own marine division (VolvoPenta) they had no interest in supporting Mack Power. Next question: How easy (or hard) is it to get parts for a T675? Are things like injectors and overhaul kits available?

Does anybody know if Mack engines were ever used in marine applications? I have a T675 I have thought about someday using in an offshore boat. I can't find anything in a google search on whether or not this has been done. Surely a marine transmission will bolt up, as long as the bellhousing bolt pattern is universal. Other prob may be Mack's placement of the motor mounts. Was there a bellhousing made with mounting brackets like cats or cummins? I doubt any marine transmission will have Mack style motor mounts. Any info would help. Thanks