JMBFC Posted April 26, 2016 Share Posted April 26, 2016 Will be removing the 673 from our restored B-67 due to blow-by issues. Is it easiest to remove transmission first? Thinking of replacement engine, noticed past discussions. Has anyone replaced with IH DT466? I can pick up a rebuilt at a great price. Or, is a Cummins the better choice? Quote Link to comment https://www.bigmacktrucks.com/topic/44989-mack-b67-end673-engine-removalreplacement/ Share on other sites More sharing options...
Freightrain Posted April 26, 2016 Share Posted April 26, 2016 (edited) Just swapped my motor. Pull the front end off, engine comes out easily. Just have to hold the tailshaft of the transmission as the mount is in the front and that holds that end it up fine. A fellow did a DT466/auto swap a few years ago. It is a small motor, so it should fit in really easy. I'd have to do a search and find the thread where he built the truck. Found the link: Edited April 26, 2016 by Freightrain Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/44989-mack-b67-end673-engine-removalreplacement/#findComment-331633 Share on other sites More sharing options...
Hobert62 Posted April 26, 2016 Share Posted April 26, 2016 I don't think the 466 will fit. On our b67 the motor is tucked into a dog house already. If I remember phantom309 had to put dog house into his and he had a standard length hood. I think he used a sink if I rember. Also the motor is set in leaning to the right to make room for the drivers feet. I think you will run into turbo clearence issues. From what I've been told they did make turbo b67's so it is possible with the proper tools. ( torch & welder) Quote Link to comment https://www.bigmacktrucks.com/topic/44989-mack-b67-end673-engine-removalreplacement/#findComment-331635 Share on other sites More sharing options...
Maddog13407 Posted April 26, 2016 Share Posted April 26, 2016 466 wont fit easy, water pump shaft is too long, and why would you wanna? open a can of worms with motor mounts and everything else. find a 237, drop it in with a few mods. Quote Link to comment https://www.bigmacktrucks.com/topic/44989-mack-b67-end673-engine-removalreplacement/#findComment-331636 Share on other sites More sharing options...
Freightrain Posted April 26, 2016 Share Posted April 26, 2016 Oh ya, wasn't thinking about the short hood and the motor being laid over. Ooops. Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/44989-mack-b67-end673-engine-removalreplacement/#findComment-331638 Share on other sites More sharing options...
Mike Posted April 26, 2016 Share Posted April 26, 2016 Is an in frame out of the question at this point? Quote Link to comment https://www.bigmacktrucks.com/topic/44989-mack-b67-end673-engine-removalreplacement/#findComment-331639 Share on other sites More sharing options...
Hobert62 Posted April 26, 2016 Share Posted April 26, 2016 38 minutes ago, Maddog13407 said: 466 wont fit easy, water pump shaft is too long, and why would you wanna? open a can of worms with motor mounts and everything else. find a 237, drop it in with a few mods. What will it take for exhaust manifold? I don't think a standard one will clear turbo will it? Quote Link to comment https://www.bigmacktrucks.com/topic/44989-mack-b67-end673-engine-removalreplacement/#findComment-331640 Share on other sites More sharing options...
j hancock Posted April 26, 2016 Share Posted April 26, 2016 I have seen a B67 tandem with a factory turbo. It got a designation of B-673ST and there was NO room under the hood. Quote JimIt doesn't cost anything to pay attention. Link to comment https://www.bigmacktrucks.com/topic/44989-mack-b67-end673-engine-removalreplacement/#findComment-331642 Share on other sites More sharing options...
Hobert62 Posted April 26, 2016 Share Posted April 26, 2016 I'm guessing its a different manifold then the b61. I'd like to see a picture of a turbo b67 if anyone has one. Back to original question a b series 5.9 cummins would prob fit since its only 360 cubic inch. If you'd step up to the 8.3 prob run back into body clearence issues. Overhaul would prob be most practical option. Quote Link to comment https://www.bigmacktrucks.com/topic/44989-mack-b67-end673-engine-removalreplacement/#findComment-331647 Share on other sites More sharing options...
theakerstwo Posted April 26, 2016 Share Posted April 26, 2016 Rob Swallows has a B67 with a turbo 711 Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/44989-mack-b67-end673-engine-removalreplacement/#findComment-331650 Share on other sites More sharing options...
JMBFC Posted April 29, 2016 Author Share Posted April 29, 2016 Thanks for all of the info. Sounds like the DT466 would not be worth it. Any rebuild kits out there for the END673? Would the 237 be an exact fit? Would prefer to keep it all Mack. Quote Link to comment https://www.bigmacktrucks.com/topic/44989-mack-b67-end673-engine-removalreplacement/#findComment-331881 Share on other sites More sharing options...
HeavyGunner Posted April 29, 2016 Share Posted April 29, 2016 (edited) 2 hours ago, JMBFC said: Thanks for all of the info. Sounds like the DT466 would not be worth it. Any rebuild kits out there for the END673? Would the 237 be an exact fit? Would prefer to keep it all Mack. I think it's a really close fit with a few mods. Read Freighttrains thread "237 flywheel" and it's pretty extensive on what he did putting a 237 in his b model. Click on thread below to read. Edited April 30, 2016 by HeavyGunner Added link Quote The problems we face today exist because the people who work for a living are outnumbered by the people who vote for a living.The government can only "give" someone what they first take from another. Link to comment https://www.bigmacktrucks.com/topic/44989-mack-b67-end673-engine-removalreplacement/#findComment-331892 Share on other sites More sharing options...
Maddog13407 Posted April 30, 2016 Share Posted April 30, 2016 might need to do some manifold shopping to get a 237 in there but its basically a bolt in fit. some early 237's used the bigger turbo and a manifold that mounted the turbo up high. the newer ones used the smaller turbo and it was mounted to the side more. they fit them in DM's, I'm sure it will fit in a B67 Quote Link to comment https://www.bigmacktrucks.com/topic/44989-mack-b67-end673-engine-removalreplacement/#findComment-331904 Share on other sites More sharing options...
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