Another Detroit Diesel question...

IRGuy · Post by **IRGuy** » Mar 13th, '12, 22:11

The building I am in has boat gear everywhere.. under canvas, in boxes, under old boats.. etc. Old engines, transmissions, diesel generators, shafts, props, etc.

Today I found what looks like two large Detroit V8 engines bolted end to end.. on a single frame.

Just curious what HP these might be? This may be a dumb question, but all I know about Detroits is they are supposed to run forever and leak oil.

Where might the nameplate be?

In Memory of Vicroy · Post by **In Memory of Vicroy** » Mar 14th, '12, 09:01

Frank - that would be a DD 16 cylinder V engine, which is two V8s end to end. Either a 16V71 or a 16V92 series (cubic inches per cylinder). Pretty common in big sportfishermen and commercial vessels. I've seen some with a common oil pan and some with spearate ones.

Don't know where the name plate would be.

UV

TailhookTom · Post by **TailhookTom** » Mar 14th, '12, 09:48

HP is going to be in the 1,000 to 1,400 range I would imagine depending on if a 71 or 92.

In Memory of Vicroy · Post by **In Memory of Vicroy** » Mar 14th, '12, 10:38

DD 8V71 weighs in at 2,310# and the 8V92 at a staggering 3,230. The 71 is 51 inches high so you'd need some rather tall motor boxes.

UV

captbone · Post by **captbone** » Mar 14th, '12, 12:31

If its really big it could be a 16v149 but most likely a 71 or 92 series.

Harry Babb · Post by **Harry Babb** » Mar 14th, '12, 21:08

Try one of these on for size.....

http://www.youtube.com/watch?v=m48vyc5beNg

hb

IRGuy · Post by **IRGuy** » Mar 15th, '12, 09:19

Thanks guys.. I had never seen such an arraingement before and was surprised at how big this assembly was. I knew I would get answers here.

And Harry... All I can say is WOW.. just to be in the same room with that monster running would make my week!

Bruce · Post by **Bruce** » Mar 15th, '12, 10:13

Best part was when it started and you couldn't hear ZZ Top no more.

Like an ak47, the distinct sound of a Detroit is unmistakable.

Morning Wood · Post by **Morning Wood** » Mar 15th, '12, 20:49

Brewster Minton · Post by **Brewster Minton** » Mar 15th, '12, 21:07

I think its the racks surging. Right bruce?

IRGuy · Post by **IRGuy** » Mar 16th, '12, 22:26

Thanks guys.. I have no idea where this monster came from.. they have been repairing and building boats here for 20 years.. plus the building owner has a couple of old tugs and some ex fire boats, and a handful of cranes.

Yesterday I took a closer look and saw on two of the oil filler caps the words "92 Series", so I guess it is the bigger of the two UV mentiones above.

In Memory of Vicroy · Post by **In Memory of Vicroy** » Mar 17th, '12, 18:29

All of them are two cycle so they fire twice as often as 4 stroke motors....like Bruce says, you can i.d. them 10 miles away. The 71 series is renowned for long life and reliability; the 92 series on the other hand, is a short-fuzed time bomb. Avoid at all costs.

UV

IRGuy · Post by **IRGuy** » Mar 18th, '12, 17:03

UV...

That may be the reason it is sitting in a corner under a tarp!

Rawleigh · Post by **Rawleigh** » Mar 19th, '12, 12:26

The 6-71's were the workhorse engines around here. The city people who have moved in her always complain about having to listen to them fire up at 4:30 in the morning! Most were run drystack. I kinda like it myself.

Some of the menhaden boats had two of the 12 or 16-71's. On the older ones that were converted from Navy minesweepers they were used to replace the old Fairbanks Morse engine. a shipyard near me used to have a lot of them sitting in the wood until scrap went up a few years ago.

bertram31.com

Another Detroit Diesel question...

Another Detroit Diesel question...

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