Brockway Trucks Message Board • View topic - Straight mount to replace 80 degree tilt in 361

Pete · **Posted:** Sat Sep 03, 2011 10:31 am

My 250 tilt is pretty well cooked I think .I have been offered a 335 reasonabley priced What would I need to change to mount this engine .It maybe cheaper than fixing my 250.

Huskiedrive361 · **Posted:** Sat Sep 03, 2011 12:05 pm

Pete - what model Brockway are you working on?

Pete · **Posted:** Sat Sep 03, 2011 7:28 pm

1971 n361

Huskiedrive361 · **Posted:** Sat Sep 03, 2011 8:29 pm

You can use the tilt bell housing from your old motor. Brockway "straightened" the motor to vertical using spacers under the right hand mount and a longer bolt. The ears bolted to the bell are a little longer also. When you go from 250 to a turbocharged motor, the engine must stand upright to gain clearance for the turbo against the right hand hood. This is the same conversion I did on Blackie.

Brockway700 · **Posted:** Sat Sep 03, 2011 9:30 pm

Ok, so now I have a question; I thought the reason the engines were tilted was because they wouldn't fit as well as they would standing straight up. If you can stand them up with no problem, why where they put in tilted?

Ernie Delli Santi · **Joined:** Wed Oct 31, 2007 12:58 pm **Posts:** 138

The motor in my 1974 361 with a Super 250 natural is straight up?
BULLHUSK

Huskiedrive361 · **Posted:** Sun Sep 04, 2011 5:43 am

Brockway stub nose has to have the engine tilted to gain clearance for steering shaft and throttle linkage on drivers side. I believe that Brockway ordered all Cummins with "tilt" bellhousing and then installed as needed, straight or tilted. Long nose has room and some naturals are straight up.

Ernie Delli Santi · **Joined:** Wed Oct 31, 2007 12:58 pm **Posts:** 138

I guess thats why Mack moved the cab on the U & DM models so that the engine could sit straight between the frame rails?? make sense, if they didn't move the cab over the dog house would be under there feet

Pete · **Posted:** Sun Sep 04, 2011 11:59 am

Thanks Stan we had a short discussion about this at the show .the info is much more important now.When we talked I was only satisfying my curiosity.The 335 belongs to a fellow club member so that option is looking more attactive all the time.The 250 has water lots and lots of it in the oil,(looked like gray paint) plus a chunk of metal in the oil pan that I felt with my finger.I figure it has pretty serious problems.

SallysMan · **Joined:** Mon Mar 30, 2009 5:16 pm **Posts:** 99

I have a grate of various motor mounts etc. and I will be at Ballston Spa next weekend if you are close. I have a 361 frame with mounts in it and could probably sell them. Stan knows the frame and he can tell you if they will work.

Haytooter · **Joined:** Fri May 07, 2010 2:02 pm **Posts:** 24

Way back when I worked for Mack in Allentown. An engineer named Ben Waiter (he was also an amateur magician) was responsible for the U and DM model "Command Cabs." They were offset so the short (90 inch bumper to back of cab) models could have both an upright engine and room for the driver's legs and foot controls. Ben always worried that someone in Australia might order one with right hand drive!

Straight mount to replace 80 degree tilt in 361

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