Great video. I worked as a diesel mech in Haiti for several years. Rebuilt a 4-71 like yours. My build was on a 1968 American motorgrader. Good job on yours!!!!!
Local mill where I worked had a 4-71 on the mill and pulling a Neuman 48 planer. The mill motor is STILL running. The old sawyer had driveshafts welded together and rau through the roof for the exhaust. SWEET!
Yup, it doesn't matter how many cylinders these two strokes had, THEY ALL sound great!! Cant think of any other type of block that sounds good in no matter how many cylinders applications produced.
You'll be happy with that to a sawmill. Sawed a lot of lumber behind a Detroit,, 671s mostly. That 4b will do fine if you're not trying to production saw
I can remember reading before the 8V71 was released they had 2 of these in a bus with a common fluid coupling transmission that was a disaster. How did they expect that to work? like everything would have to be in synch.
@@SteveCarras Your on the money. I can also remember seeing an ad for a COE GMC cannonball type with a 6-71T way back in 1958. A tray body towing a dog trailer loaded to the hilt with timber. I reckon they'd pull better up hill than a natural 8V.
Would Sound SO Much better with either a "rear" outlet manifold (straight back), or better (re: deeper) yet, with a "rear - side" outlet exhaust manifold..... those "center" outlet manifolds, no matter which engine they were attached to (3, 4, 6, 8, or 12)... always sounded "tinny" (the exception being when utilized with Turbos)..... the side and rear outlet manifolds always sound Much "throatier".... either with turbos or NA. Go find an "abandoned" 8V71, somewhere.... and "borrow" one..... but not from an International 8200 series COE, from the late 60's to the late 70's..... they used the same center outlet manifolds..... ANY other 8V71 powered Semi truck will have the rear outlet manifold... IF, Naturally Aspirated..... especially Pre - 1975, when DD released the first turbocharged engine.... the 8V71T (350 HP @ 2100)........ Try it, you'll love the sound. : ) PS:.... put a good Riker (or Donaldson) muffler on it, to retain sufficient back-pressure for proper cylinder scavenging, which equals a better power curve, and power output. Enjoy your GM/DD.... and thanks for the video.
4-71 is a good motor lota power good torque to bad oliver didnt put that motor in their tractors instead of the 4-53 but fox super Ds had them in their self propelled choppers good motors lol for back in the day
Great video. I worked as a diesel mech in Haiti for several years. Rebuilt a 4-71 like yours. My build was on a 1968 American motorgrader.
Good job on yours!!!!!
Local mill where I worked had a 4-71 on the mill and pulling a Neuman 48 planer. The mill motor is STILL running. The old sawyer had driveshafts welded together and rau through the roof for the exhaust. SWEET!
That tall pipe stack sounds epic! Nice engine!
Music to the ears. An unmuffled Detroit.
Yup, it doesn't matter how many cylinders these two strokes had, THEY ALL sound great!! Cant think of any other type of block that sounds good in no matter how many cylinders applications produced.
I ran a ballast regulator (track gang) with a Detroit Diesel for nine years. Probably where my hearing loss occurred. LOL 👍
You'll be happy with that to a sawmill. Sawed a lot of lumber behind a Detroit,, 671s mostly. That 4b will do fine if you're not trying to production saw
Very nice
Sounds like a 1960s New Look Flxible transit bus....(though those used 671 and 871 not 471 but it's the same motor..>DETROIT!)
Some Flxibles did have the 4-71, but yes they were rare after the GMC TDH3714 was discontinued.
I can remember reading before the 8V71 was released they had 2 of these in a bus with a common fluid coupling transmission that was a disaster. How did they expect that to work? like everything would have to be in synch.
@@andrewking9761 LIke in a Scenicruiser,,,,,
@@SteveCarras Your on the money. I can also remember seeing an ad for a COE GMC cannonball type with a 6-71T way back in 1958. A tray body towing a dog trailer loaded to the hilt with timber. I reckon they'd pull better up hill than a natural 8V.
Hello my friend! What kind of oil did you use for your engine? How many litters?
Would Sound SO Much better with either a "rear" outlet manifold (straight back), or better (re: deeper) yet, with a "rear - side" outlet exhaust manifold..... those "center" outlet manifolds, no matter which engine they were attached to (3, 4, 6, 8, or 12)... always sounded "tinny" (the exception being when utilized with Turbos)..... the side and rear outlet manifolds always sound Much "throatier".... either with turbos or NA.
Go find an "abandoned" 8V71, somewhere.... and "borrow" one..... but not from an International 8200 series COE, from the late 60's to the late 70's..... they used the same center outlet manifolds..... ANY other 8V71 powered Semi truck will have the rear outlet manifold... IF, Naturally Aspirated..... especially Pre - 1975, when DD released the first turbocharged engine.... the 8V71T (350 HP @ 2100)........ Try it, you'll love the sound. : )
PS:.... put a good Riker (or Donaldson) muffler on it, to retain sufficient back-pressure for proper cylinder scavenging, which equals a better power curve, and power output. Enjoy your GM/DD.... and thanks for the video.
holy crap
4-71 is a good motor lota power good torque to bad oliver didnt put that motor in their tractors instead of the 4-53 but fox super Ds had them in their self propelled choppers good motors lol for back in the day
What volts is the starter
Quantos HP?