M54A1 Posted October 28, 2009 Share Posted October 28, 2009 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 Quote Link to comment https://www.bigmacktrucks.com/topic/11205-b-model-maxidyne-conversion/ Share on other sites More sharing options...
B61TENDT711 Posted October 28, 2009 Share Posted October 28, 2009 (edited) 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 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 Mike Edited October 28, 2009 by B61TENDT711 Quote 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 Link to comment https://www.bigmacktrucks.com/topic/11205-b-model-maxidyne-conversion/#findComment-42552 Share on other sites More sharing options...
Freightrain Posted October 28, 2009 Share Posted October 28, 2009 I've never heard anyone having problems with bigger pan? Only thing I know guys have to switch is water pump and maybe damper? Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/11205-b-model-maxidyne-conversion/#findComment-42587 Share on other sites More sharing options...
HK Trucking Posted October 28, 2009 Share Posted October 28, 2009 Sounds like it's one of those "ESI plus" motors that had 3 oil filters and an extra deep oil pan.Mack used those in some R & U model highway tractors.. Quote "If You Can't Shift It Smoothly, You Shouldn't Be Driving It" Link to comment https://www.bigmacktrucks.com/topic/11205-b-model-maxidyne-conversion/#findComment-42596 Share on other sites More sharing options...
M54A1 Posted October 29, 2009 Author Share Posted October 29, 2009 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. Quote Link to comment https://www.bigmacktrucks.com/topic/11205-b-model-maxidyne-conversion/#findComment-42604 Share on other sites More sharing options...
B61TENDT711 Posted October 29, 2009 Share Posted October 29, 2009 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 Quote 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 Link to comment https://www.bigmacktrucks.com/topic/11205-b-model-maxidyne-conversion/#findComment-42607 Share on other sites More sharing options...
M54A1 Posted October 29, 2009 Author Share Posted October 29, 2009 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 Quote Link to comment https://www.bigmacktrucks.com/topic/11205-b-model-maxidyne-conversion/#findComment-42608 Share on other sites More sharing options...
B61TENDT711 Posted October 30, 2009 Share Posted October 30, 2009 how is the project coming along ?Mike Quote 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 Link to comment https://www.bigmacktrucks.com/topic/11205-b-model-maxidyne-conversion/#findComment-42640 Share on other sites More sharing options...
Bobby Covert Posted November 23, 2009 Share Posted November 23, 2009 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 Quote Link to comment https://www.bigmacktrucks.com/topic/11205-b-model-maxidyne-conversion/#findComment-43712 Share on other sites More sharing options...
Mike Posted November 23, 2009 Share Posted November 23, 2009 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 Quote Link to comment https://www.bigmacktrucks.com/topic/11205-b-model-maxidyne-conversion/#findComment-43717 Share on other sites More sharing options...
M54A1 Posted November 24, 2009 Author Share Posted November 24, 2009 Bobby Is your starter on the driver's side or the passengers side? Thanks for the help Quote Link to comment https://www.bigmacktrucks.com/topic/11205-b-model-maxidyne-conversion/#findComment-43729 Share on other sites More sharing options...
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