RoadwayR

Forgive me for resurrecting this old thread, but I am doing a little research on the earlier Mack V-8's and have a few questions. First off, according to some of my old service manuals, the 864's had a different bore and stroke than the 865/866's. The 864 being 5 X 5.5 vs. 5.5 X 5 for the later engines. The rod journals are also quite a bit larger. I am wondering if the 864 had crankshaft issues? I also see the 864's used a Bosch PSJ rotary pump, and some of the later V-8's used a Bosch APE in-line. I know the PSJ's could be trouble, at least they were on GMC Toroflows. Thanks.

More like the return of the CUCV, but yeah, the LUV name is back.

Hard to say what they are up to. The plant did work for both Toyota and Hino in the U.S.. Toyota has been very unhappy with Hino since the emissions scandal, and I hear Hino production has been hampered since they switched to Cummins engines in the U.S.. And that's after nearly a year of no production. Might be looking at the beginning of a spin-off, or a withdrawl from the U.S. market. Anybody's guess at this point.

https://www.commercialappeal.com/story/money/business/2024/06/04/hino-motors-arkansas-plant-closing/73978031007/

I saw Mack had an MD on display at the ACT show this year, and there was something about it having a Powertrain Solutions International engine in it. Is Mack going to offer a propane or gasoline option in the MD? Can't find any specific imformation about the truck that was displayed.

That's not part of the Common Tactical Truck program, is it?

This rumor has been more-or-less confirmed, but still no word on what the engine is going in to.

Who is going to offer it? I heard Freightliner in the M2 for one.

I like Isuzu's. A lot of them here are Chevy gasoline V-8 powered. Now the FTR's and FVR's are available with Cummins diesels.

There was a point in time during the mid-80's that Detroit Diesel was talking to Deere about forming a joint venture. Deere was involved with the development of the 60 Series and Detroit was looking to market the mid-range Deere diesels as highway engines. From what I understood at the time things were going well between Detroit and Deere until Roger Penske made GM an offer for Detroit Diesel that GM couldn't refuse. And that was that. BTW, Paul, were Chevy medium duties common in Australia in the 70's and 80's?

Speaking of diesels, they built a few with Toroflows in '73 and '74. I have NEVER seen one, but I have seen a few with the GMC gas V-6. Around 1986 they built a few with Deere diesels and even some with 6 cylinder air cooled Duetz diesels.

There was a lumber yard near my that had a couple of C-60's with 4-53T power. You could hear them coming a long ways off! The 8.2L V-8 diesel replaced the 4-53T sometime around 1980 in those trucks.

I don't think the 292's ever had the integrated head/manifold. I only saw 250's with that, both 1 bbl. and 2 bbl. with split exhaust manifolds. The 2 bbl. versions ran pretty good and didn't seem to crack as bad as the earlier 1 bbl.'s. The 4 bbl. 4.3L V-6 was much better though.

I sent a lot of time driving those things. Had good power with a 366 or 427 gas engine, great turning radius if the wheelbase wasn't too long. Didn't like changing the spark plugs if the truck had air brakes.

Back in the early 60's the Los Angeles MTA bought a bunch of GM and Flxible transit buses. Naturally the GM's had sideways 6V-71's with V-drive automatics, but the Flxibles had 6V-71's mounted straight in with Spicer 2 speed automatics. I was told they were nothing but trouble!