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Does anyone know anything about the dependability and available to service the 8V71 Engine? Are they expensive to work on? We are thinking about buying a 1978 MCI which was converted in 96. We have had a few negative feedback about this engine, but it was from truckers. Is it hard to find people to work on them? Please help!
I would like to know the dry wheight, in kg, of e 8V71T engine, without gearbox, at the maximum power rate (530hp). Can you help me?
Thanks and regards
8V-71's are still manufactured by Detroit Diesel today. They are probably one of the most widely used diesels in the world in their horsepower class. They are a design that was introduced in the 1940's, so are naturally not up to modern noise, emission, and fuel economy standards. The most common HP rating for the 8V-71 was 318 HP (at sea level. They suffer from altitude just like a naturally aspirated gasoline engine. They ARE considered naturally aspirated even though they have a gear driven rootes type positive displacement supercharger on them. The displacement of the 'blower' is exactly the same as the displacement of the engine, so consequently no boost pressure is developed. There is no provision for 'overdriving' the blower. There is a turbocharged version of the 8V-71 which is called the 8V-71T. These do not suffer deration due to altitude and are much quieter. 8V-71 means 8-cylinders with 71 cubic inches each, or a total of (8 X 71) 568 cubic inches. This is not realy very big when you consider that almost all big trucks are powered by 855 or 893 cubic inch engines. But an 8V-71T in a motor coach is a hot son of a gun! Greyhound busses routinely got 500,000 miles between overhauls on these engines pulling 35,000 lbs gross weight. Most truckers are dealing with 80,000 lbs weight so consequently get considerably less longevity and less performance from an 8V-71 than they do other larger engines.
The older detroits are infamous, but not actually bad, they have no more chronic problems than any other diesel, but being pre electronic injection, they are not a great performer,compared to newer units. 8V71 Inframe $1410.48 for the kit, an international dt 466 would be 1010.63
so parts cost is higher,but I would not hesitate to buy a bus with a detroit. a check by a qualified deisel mechanic would be wise.
I have an 8V71,1968, the engine runs great, no black smoke, but blows oil all over my tow car. No oil in tail pipes, and have checked everywhere, no leak that I can find. It goes through 2 gal. every 200 miles, any Ideas?
Hello sales,
I am the sales manager of PHILIPS STORES NIGERIA LIMITED.I visited your site where i found products that are of immense quality that my store deals with.i will like to order for them.pls acknowlege by responding to this mail urgently so that i can order for the products needed.
I will be awaiting your favourable response & i will like to know if you do accept master & visa cards for payment.
Regards.
sandra.
Have 8v71 in a 1973 mdl 10 eagle bus i have a bad oil leak over starter looks like it is cumming down the head were it bolts to block jus under manafold then runs back and drips down the sending unite by the oil filer cap but cant tell exactly were it is comming from. smokes just a little on start up but dont last long runs great my last time out i went 2400 miles and used over 2 gal of oil using bp 40 wght. could it be compresser or anything othere then the block ty john l clark
Hello, I was reading with interest your informations. Perhaps somebody could tell me how much the diesel consumation would be for this tipe of engine on a boat. It is a 8V71 Diesel without turbocharger from 1969. I need this information for the transport of the boat. I would apreciate your response. Thanks, Pascal
email Terri Falk
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