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B Model Maxidyne Conversion


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I'm in the process of switching a 237 in to my B model. I have ran in to a few issues. I was planning on using the oil pan from the 673 and putting it on the maxidyne in order to keep the starter on the passengers side, but the 673 has a different oil pump/pickup than the maxidyne. Do the oil pumps need to be switched or can I use the maxidyne oil pump/pickup (which is about 2" deeper than the 673 pickup) with the 673 pan?. Any other issues I need to know about? Thanks

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I'm guessing the reason you need to use the 673's pan is the 675's pan is too deep ?

you sure you couldn't fudge the 2inches of clearance from some place else ?

edit:

I'm in the process of tracking down and M52a1 army 5ton 6x6 semi tractor which is powered by the same 673 i am planning on swapping either the 675=237hp 676=300hp E6=350hp :mack1: engines, and if this happens to me i am going to try and gain the clearances need from another location rather then go messing with the crank case :thumb:

Mike

Edited by B61TENDT711

1953 Studebaker M275. Reo 331 I-6, Spicer 5spd-DD, 6.72 Gears, 11.00R20H tires.

1959 Mack B61T. Mack END+T 711 I-6, 2 stick 15spd-OD, 6.38 Gears, 12.00-24J tires.

1962 GMC K4500. GMC 379M-V6, SM420-4spd-DD, 5.13 Gears, 8-19.5G tires.

1969 AMC AMX. AMC 390 Crossram, borgwarner T-10 4spd, 4.44 Gears, G60-14s Front N50-15s Rear.

1975 Mack DM600. 300 Mack 6spd 4.17 gears 445/65R22.5 front n 12.00R20 rear.

1976 Arctic Cat Jag2000. 275cc twin, belt drive, steal grips.

1977 Ford F350. 351M V-8, 4spd-DD, 4.56 Gears, 245/70R19.5G tires.

1988 AMC Jeep MJ. 2.5L I-4, 4spd-DD, 4.10 Gears 215/70R15 front 225/70R15 rear.

1992 Trans AM GTA. 406SBC TBI, 4L60E, 3.73 Gears, 245/50R16 front 295/50R16 Rear.

1995 GMC K2500 6.5-T, 4L80E, 4.10 gears 7.50-16D tires. 4.56 Gears coming soon.

2007 Honda Rubicon 500cc Single, 5spd fluid drive trans, 27x10-12 Front 27x12-12 Rear.

Still in search of M52 5 ton tractor, M123A1C 10 ton tractor

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My engine has only 2 filters ,but the pan holds quite a bit more oil than the 673 pan, I called the Mack shop and they said there was a deeper pan used on some engines, but the pickup tubes where all the same. I would like to use the pickup from the 673 with the strainer bowl, but the pumps are different where pickups bolt on. I have also found that at some point the pump drive shaft/gear where changed from a spline driven pump gear to a machined on pump gear, Maybe the pickup bolt locations were changed at the same time.

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Sounds like you have your self a jam there...

You sure its the 237hp ENDT675 your stuffing in there ?

I was told the ENDT 673 675 n 676 all look the same not sure tho so don't quote me...

Mike

1953 Studebaker M275. Reo 331 I-6, Spicer 5spd-DD, 6.72 Gears, 11.00R20H tires.

1959 Mack B61T. Mack END+T 711 I-6, 2 stick 15spd-OD, 6.38 Gears, 12.00-24J tires.

1962 GMC K4500. GMC 379M-V6, SM420-4spd-DD, 5.13 Gears, 8-19.5G tires.

1969 AMC AMX. AMC 390 Crossram, borgwarner T-10 4spd, 4.44 Gears, G60-14s Front N50-15s Rear.

1975 Mack DM600. 300 Mack 6spd 4.17 gears 445/65R22.5 front n 12.00R20 rear.

1976 Arctic Cat Jag2000. 275cc twin, belt drive, steal grips.

1977 Ford F350. 351M V-8, 4spd-DD, 4.56 Gears, 245/70R19.5G tires.

1988 AMC Jeep MJ. 2.5L I-4, 4spd-DD, 4.10 Gears 215/70R15 front 225/70R15 rear.

1992 Trans AM GTA. 406SBC TBI, 4L60E, 3.73 Gears, 245/50R16 front 295/50R16 Rear.

1995 GMC K2500 6.5-T, 4L80E, 4.10 gears 7.50-16D tires. 4.56 Gears coming soon.

2007 Honda Rubicon 500cc Single, 5spd fluid drive trans, 27x10-12 Front 27x12-12 Rear.

Still in search of M52 5 ton tractor, M123A1C 10 ton tractor

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Sounds like you have your self a jam there...

You sure its the 237hp ENDT675 your stuffing in there ?

I was told the ENDT 673 675 n 676 all look the same not sure tho so don't quote me...

Mike

Yeah its a 675, the 673 has a larger turbo, while the 676 has an intercooler

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how is the project coming along ?

Mike

1953 Studebaker M275. Reo 331 I-6, Spicer 5spd-DD, 6.72 Gears, 11.00R20H tires.

1959 Mack B61T. Mack END+T 711 I-6, 2 stick 15spd-OD, 6.38 Gears, 12.00-24J tires.

1962 GMC K4500. GMC 379M-V6, SM420-4spd-DD, 5.13 Gears, 8-19.5G tires.

1969 AMC AMX. AMC 390 Crossram, borgwarner T-10 4spd, 4.44 Gears, G60-14s Front N50-15s Rear.

1975 Mack DM600. 300 Mack 6spd 4.17 gears 445/65R22.5 front n 12.00R20 rear.

1976 Arctic Cat Jag2000. 275cc twin, belt drive, steal grips.

1977 Ford F350. 351M V-8, 4spd-DD, 4.56 Gears, 245/70R19.5G tires.

1988 AMC Jeep MJ. 2.5L I-4, 4spd-DD, 4.10 Gears 215/70R15 front 225/70R15 rear.

1992 Trans AM GTA. 406SBC TBI, 4L60E, 3.73 Gears, 245/50R16 front 295/50R16 Rear.

1995 GMC K2500 6.5-T, 4L80E, 4.10 gears 7.50-16D tires. 4.56 Gears coming soon.

2007 Honda Rubicon 500cc Single, 5spd fluid drive trans, 27x10-12 Front 27x12-12 Rear.

Still in search of M52 5 ton tractor, M123A1C 10 ton tractor

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  • 4 weeks later...

I have a 673 oil pan ,it wont fit the maxidyne. I also have the 237 in my 1964 B615, but I didnt put it in there and dont have the expertise to do it anyway. If there is a picture or other question I can help you with let me know-Bobby

Yes sir, I have a question........what is a 673 oil pan?....and also have you been slamming doors at anymore truck shows this past year?....and do you forsee anymore shows in the future?

Thank You!

mike :D

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