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Peter T.
Samba Member
Joined: October 09, 2006
Posts: 268
Location: Long Island, New York
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 Posted: Mon Jul 15, 2019 4:49 pm Post subject: Mystery Stroker crankshaft |
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I got this from a retired Vw mechanic and he told me that its a billet crank for a Denzel but the dimensions are wrong.
All the journals measure 50mm and the stroke looks to be 69mm.
The flywheel end has 4 instead of 8 wholes.
The only markings on it is #151.
Anybody have a clue about this crankshaft? |
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Erik G
Samba Member
Joined: October 16, 2002
Posts: 13584
Location: Tejas!
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Peter T.
Samba Member
Joined: October 09, 2006
Posts: 268
Location: Long Island, New York
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| Posted: Mon Jul 15, 2019 5:09 pm Post subject: Re: Mystery Stroker crankshaft |
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| It looks like a Hirth crank but its solid and not a roller crank. |
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[email protected]
Samba Member
Joined: June 24, 2015
Posts: 905
Location: Rialto. CA
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| Posted: Mon Jul 15, 2019 6:01 pm Post subject: Re: Mystery Stroker crankshaft |
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| By what i know denzel only had a 67mm crankshaft... Is this crank for a 36hp or 40hp |
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Peter T.
Samba Member
Joined: October 09, 2006
Posts: 268
Location: Long Island, New York
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| Posted: Mon Jul 15, 2019 7:24 pm Post subject: Re: Mystery Stroker crankshaft |
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| Its a 36hp crank |
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earthquake
Samba Member
Joined: January 10, 2008
Posts: 4003
Location: SANDY VALLEY, NEVADA
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| Posted: Fri Jul 19, 2019 11:54 am Post subject: Re: Mystery Stroker crankshaft |
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It looks like some body asked LEGO to build a crank for a VW!
eQ
_________________
74 CLASS 11 LOOK-A-LIKE
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Link to Kelly J. Nolte 3/20/53 - 11/6/08
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DEATH TO CHINGERS!
[From a military recruitment poster in the novel "The Stainless Steel Rat" By Harry Harrison] |
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motofly196
Samba Member
Joined: June 01, 2008
Posts: 1468
Location: Eastern WA
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| Posted: Sun Jul 21, 2019 11:38 am Post subject: Re: Mystery Stroker crankshaft |
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I wouldn't be the one that has to clearance the case for that crank....  |
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slalombuggy
Samba Member
Joined: July 17, 2010
Posts: 9340
Location: Canada
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| Posted: Sun Jul 21, 2019 5:32 pm Post subject: Re: Mystery Stroker crankshaft |
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Holy windage Batman. That looks positively agricultural.
brad |
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Dr. Denzel
Samba Member
Joined: August 13, 2006
Posts: 17
Location: Ohio, U.S.A.
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| Posted: Sat Jul 27, 2019 9:10 pm Post subject: Re: Mystery Stroker crankshaft |
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Denzels did indeed come with 67mm cranks, but there were also other stokes.
The earliest Denzel factory 1300cc engines had a bore and stroke of 80mm X 64mm. (This would have been when they used the stock 36hp VW crank with a stroke of 64mm.)
Later Denzel factory 1300cc engines had a bore and stroke of 78mm X 67mm.
In the later years Denzel also offered two 1488cc engines, one in their standard roadster and one in their high performance "Sport International" roadster. These engines had a bore and stroke of 80x74 mm. At least some of the Denzel 1500 engines had a Hirth roller bearing crankshaft, just as early Porsche pushrod 1500cc 356 engines and the 1500cc Carrera four-cam 356A engines.
Just to make it a little more complicated, some Denzel kit engines were sold by EMPI at the same time as they sold their X100 stroker crank. The circa 1960 EMPI literature I have which includes the X100 crank for the 36 hp engine does not list the stroke, but says the X100 is 6mm longer. This would make it stroke of 70mm.
I have a Denzel kit engine that has a crank that appears to have a 69.5mm stroke. I wonder if the literature mentioned above just rounded off an actual 5.5mm increase to a 6mm increase? (The difference being an EMPI crank of 69.5mm or an EMPI crank of 70mm.)
Lastly, some Denzel cranks are stamped "ES" followed by several digits, such as "ES 625". Does anyone know what the "ES" indicates?
Jim Perrin |
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QRP
Samba Member
Joined: April 27, 2008
Posts: 1973
Location: NORTH HOLLYWOOD,CA
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| Posted: Mon Sep 23, 2019 12:06 am Post subject: Re: Mystery Stroker crankshaft |
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| motofly196 wrote: |
| I wouldn't be the one that has to clearance the case for that crank.... |
HAHAHAHAHA! |
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[email protected]
Samba Member
Joined: June 24, 2015
Posts: 905
Location: Rialto. CA
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| Posted: Sun Sep 14, 2025 6:07 pm Post subject: Re: Mystery Stroker crankshaft |
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| Peter T. wrote: |
I got this from a retired Vw mechanic and he told me that its a billet crank for a Denzel but the dimensions are wrong.
All the journals measure 50mm and the stroke looks to be 69mm.
The flywheel end has 4 instead of 8 wholes.
The only markings on it is #151.
Anybody have a clue about this crankshaft? |
Whatever happend to this crankshaft???... |
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puchfinnland
Samba Member
Joined: December 26, 2005
Posts: 296
Location: Deale Maryland
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| Posted: Mon Sep 15, 2025 5:50 pm Post subject: Re: Mystery Stroker crankshaft |
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Did DENZEL ever make a 40hp conversion??
_________________
ABYC marine master technician , EX European auto technician, new business- EASTCOASTWEST , custom work on campers, only systems, no mechanical |
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[email protected]
Samba Member
Joined: June 24, 2015
Posts: 905
Location: Rialto. CA
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| Posted: Mon Sep 15, 2025 5:58 pm Post subject: Re: Mystery Stroker crankshaft |
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| puchfinnland wrote: |
| Did DENZEL ever make a 40hp conversion?? |
No...but there was a story's i heard years ago that denzel well working with bmw in the 1960s denzel had empi sell his 36hp kits just like okras during that time but was also working on kits for the 40hp but I've never seen any denzel heads for 40hp .. maybe bmw stopped him from it ??? But as of now no denzel 40hp parts were made ...unless someone finds a denzel protype 40hp head but I think by now we would of seen them ..but who knows if the story was true .. |
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