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The 'Castle' 1921 Duesenberg Straight 8 Model A (Model J par
- 61xlch
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Bob Roller wrote: Andy,
IF the whole assembly is REALLY balanced,rods,crankshaft,flywheel,clutch,pressure plate and maybe a vibration* dampener on the front of the crankshaft,it should be alright
Any vibration would soon start to damage those 3 mainbearings.
What does the crankshaft on that "A"engine weigh by itself and is the bolt pattern in the flywheel irregular so it goes on the crankshaft only one way
like the "J" does.It was probably balanced as if it were one piece when it was new.
*I don't know if these engines had a vibration dampener or not.
Bob Roller
As far as I know, no dampener. The weight of the crankshaft and the flywheel bolt pattern I don?t know right know, but will check it out.
Anyway, I won?t rev it higher than necessary for normal street cruising, no racing intentions. This should be the key for a long lasting engine life.
Andy
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IF the whole assembly is REALLY balanced,rods,crankshaft,flywheel,clutch,pressure plate and maybe a vibration* dampener on the front of the crankshaft,it should be alright
Any vibration would soon start to damage those 3 mainbearings.
What does the crankshaft on that "A"engine weigh by itself and is the bolt pattern in the flywheel irregular so it goes on the crankshaft only one way
like the "J" does.It was probably balanced as if it were one piece when it was new.
*I don't know if these engines had a vibration dampener or not.
Bob Roller
Bob Roller
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- Bob Roller
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I have wondered for years about the oil used in the Duesenberg Special in 1935.Is there any data on it from any source?
I have never seen a Model "A" Duesenberg engine taken apart so can't really comment about the three main bearings but I do know others used it in 6 cylinder engines. The Chandler is one I'm familiar with and that was appalled at the flimsy construction of the bottom side of this engine.
I would think adding 2 more crank journals would be a bit much.Just how
well did these engines hold up in every day use? I think about 650 were made and that is many more than the "J". One thing is sure,old E.L.Cord had the right idea,tromp it and go in the grand manner.Lots of fun and I speak from experience.
Bob Roller
Bob Roller
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- 61xlch
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But keep in mind, this engine was created in the late teens, you can?t compare it to an engine from 1941! This is nearly as much difference in time between the first automobiles and the Duesy A engine.
Cheers
Andy
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- Mike Dube
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Agreed, no substitute for greater bearing surface in long engines with long rods. In Fred's defense, the A was developed from their 3 valve racing engine & designed mainly for speed. As others had said, they were interested in road cars only to support racing.
As to the J ? Well.... the boss wanted that one.
Mike
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Matt.
Ein koenigswelle oder nockenwelle ohne zundkette aber mit triebwerk.
Bob Roller
Bob Roller
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- Mike Dube
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Bob Roller wrote: Years ago,about 57 of them,a close friend had a pristine 1941 Nash 600
with a straight eight engine and an overdrive transmission.This engine was about 260 CID and had the valves in the head,sixteen spark plugs and nine main bearings and held about ten quarts of oil.I considered it a superior car to the 1937 Cadillac V12,Series 85 sedan I owned at that time.
The Nash was smooth running and with the overdrive engaged could get twenty miles per gallon on the road. Not bad for a car some considered as inferior.
Bob Roller
I'm with you Bob,
In my experience, folks who appreciate engineering agree: that dual ignition ohv Nash was one heck of an engine.
Mike
8-100A
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- landmark
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Bob Roller wrote: I have always liked the cycle fenders on some of these cars. If I had more money that organized crime and religion,I'd buy a "J" and restyle it to incorporate these fenders.
What was the CID of these old engines anyway.I don't think any of them were even 300 CID.
Bob Roller
Hello Bob,
like Mike said before the CID would be 260 cui.
If I remember it right, the engine has a two valve, (single) overhead-camshaft-head with spherical combusting chambers. The camshaft is driven by a vertical driveshaft (with bevel gears) a so called "K?nigswelle".
Single updraft carb (1.5' ?), three main bearing crankshaft, compression ratio 5:1 and the power output was rated at 88 hp at 3600 rpm. (source: automobile quarterly Vol 30. No. 4)
Cheers
Matt
Was man besonders gerne tut,
ist selten ganz besonders gut
Wilhelm Busch
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with a straight eight engine and an overdrive transmission.This engine was about 260 CID and had the valves in the head,sixteen spark plugs and nine main bearings and held about ten quarts of oil.I considered it a superior car to the 1937 Cadillac V12,Series 85 sedan I owned at that time.
The Nash was smooth running and with the overdrive engaged could get twenty miles per gallon on the road. Not bad for a car some considered as inferior.
Bob Roller
Bob Roller
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What was the CID of these old engines anyway.I don't think any of them were even 300 CID.
Bob Roller
Bob Roller
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Mike
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Bob Roller
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- Bob Roller
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Someone that can write a check and have the bank bounce instead of the check might do something that silly just to show it can be done.
Bob Roller
Bob Roller
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- mikespeed35
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CORDially Mike
Mike Huffman
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- 61xlch
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Andy
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Was man besonders gerne tut,
ist selten ganz besonders gut
Wilhelm Busch
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Thanks.
James Bartlett
<a href="mailto:[email protected]][email protected][/url]
832-606-7599 (cell)
'35 Auburn S/C Convert. Sedan
'32 Duesenberg D/C Phaeton
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- RichardLane
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Many of us are following your progress, thanks for the heads up on the new pics.
Mike
8-100A
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