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Thread: Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

  1. #1
    ...on your color TV screen... Turbo Mopar Contributor Reeves's Avatar
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    Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

    Cam Bolt/Intermediate Shaft Weights

    Cam/Intermediate Shaft Bolt and Washer = 77.65g

    The bolt is M12 x 1.5 x 50mm
    ¼” Thick Washer – Beveled (Bellville?)
    Washer O.D. 1.220” (about 30mm)

    New Never Used Intermediate Shaft w/Key and Fuel Pump Lobe = 1175.45g/41.46oz/2.59lb

    New Never Used Intermediate Shaft w/Key and center machined down to 0.775” =
    1017.61g/35.89oz/2.24lb

    Difference of:
    157.84g/5.57oz/0.35lb after machining.

    From the Hot Rod 2.2 Complete Review catalog, it says Koffel’s shaft with key weighs 2.5lbs before machining (which is what I got as well) and 1.5lbs after machining. It HAS to be gun drilled to save that much weight?

    Used Intermediate Shaft without key but with Fuel Pump Lobe = 1173.45g

    From the above, the key should weigh = 2.00g
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    James Reeves - Reeves Racing
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    Visit www.boostbutton.com... Turbo Mopar Contributor ShelGame's Avatar
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    Re: Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

    Subscribed

    Koeffel's still exists. Wonder if they kept any notes?
    https://db.tt/SV7ONZpQ
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    Garrett booster Turbo Mopar Contributor
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    Re: Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

    I may be able to put my hands on one out of a Koeffel motor to verify if it is drilled....

  4. #4
    ...on your color TV screen... Turbo Mopar Contributor Reeves's Avatar
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    Re: Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

    Crap, I didn't even think of that! I have a Koeffel motor. I never paid attention to see if there is a intermediate shaft in it or not! Doh!

    James Reeves - Reeves Racing
    83 Scamp summer driver - future DC motor receiver
    86 GLH-T 9.99 at 143.78 mph - Iceman CAI and Borla catback
    86 GLHS #169 Mom's - complete Super 60 car
    87 Shelby Z 14.16 Dad's - mostly stock, no sh*t!
    88 Shelby Z 13.5 - been in storage for 7+ years
    89 Dodge Caravan PLH - currently blown piston
    03 SRT-4 12.24 Mom's
    07 Charger 5.7L 12.99 Dad's(Mom driving)

  5. #5
    See me ride out of the sunset... Turbo Mopar Staff BadAssPerformance's Avatar
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    Re: Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

    Quote Originally Posted by Reeves View Post
    Crap, I didn't even think of that! I have a Koeffel motor. I never paid attention to see if there is a intermediate shaft in it or not! Doh!
    So, did you check it yet?


    how about now?



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    Garrett booster Turbo Mopar Contributor
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    Re: Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

    The one I can check out is at a buddies house so I wont be able to get to it for a few days. I have been dying to get that thing on a stand anyway and check it out lol. I know it has the intermediate shaft in it so we shall see

  7. #7
    ...on your color TV screen... Turbo Mopar Contributor Reeves's Avatar
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    Re: Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

    Quote Originally Posted by BadAssPerformance View Post
    So, did you check it yet?


    how about now?


    LMAO!!!!!

    Guys from work and beer got in the way....

    Quote Originally Posted by CSX194 View Post
    The one I can check out is at a buddies house so I wont be able to get to it for a few days. I have been dying to get that thing on a stand anyway and check it out lol. I know it has the intermediate shaft in it so we shall see
    Take lots'o'pictures!


    James Reeves - Reeves Racing
    83 Scamp summer driver - future DC motor receiver
    86 GLH-T 9.99 at 143.78 mph - Iceman CAI and Borla catback
    86 GLHS #169 Mom's - complete Super 60 car
    87 Shelby Z 14.16 Dad's - mostly stock, no sh*t!
    88 Shelby Z 13.5 - been in storage for 7+ years
    89 Dodge Caravan PLH - currently blown piston
    03 SRT-4 12.24 Mom's
    07 Charger 5.7L 12.99 Dad's(Mom driving)

  8. #8
    turbo addict Turbo Mopar Contributor
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    Re: Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

    Update now!!! Lol

  9. #9
    Garrett booster Turbo Mopar Contributor
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    Re: Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

    Quote Originally Posted by Reeves View Post
    LMAO!!!!!

    Guys from work and beer got in the way....



    Take lots'o'pictures!


    You got it. I will try to find the build sheet too.

  10. #10
    ...on your color TV screen... Turbo Mopar Contributor Reeves's Avatar
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    Re: Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

    Quote Originally Posted by Reeves View Post
    Crap, I didn't even think of that! I have a Koeffel motor. I never paid attention to see if there is a intermediate shaft in it or not! Doh!
    OK, so this weekend I looked at the motor and it DOES have an intermediate shaft in it. Uh, that's about as far as I got. Maybe I'll try to pull it out tonight.


    Quote Originally Posted by CSX194 View Post
    The one I can check out is at a buddies house so I wont be able to get to it for a few days. I have been dying to get that thing on a stand anyway and check it out lol. I know it has the intermediate shaft in it so we shall see
    Any luck yet?

    James Reeves - Reeves Racing
    83 Scamp summer driver - future DC motor receiver
    86 GLH-T 9.99 at 143.78 mph - Iceman CAI and Borla catback
    86 GLHS #169 Mom's - complete Super 60 car
    87 Shelby Z 14.16 Dad's - mostly stock, no sh*t!
    88 Shelby Z 13.5 - been in storage for 7+ years
    89 Dodge Caravan PLH - currently blown piston
    03 SRT-4 12.24 Mom's
    07 Charger 5.7L 12.99 Dad's(Mom driving)

  11. #11
    Supporting Member Turbo Mopar Contributor zin's Avatar
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    Re: Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

    Blast from the past!

    What was the conclusion?

    Mike
    "The Constitution is not an instrument for the government to restrain the people, it is an instrument for the people to restrain the government - lest it come to dominate our lives and interests." - Patrick Henry

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  12. #12
    ...on your color TV screen... Turbo Mopar Contributor Reeves's Avatar
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    Re: Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

    Never pulled it out yet. Kind of forgot until now. Thanks!

    James Reeves - Reeves Racing
    83 Scamp summer driver - future DC motor receiver
    86 GLH-T 9.99 at 143.78 mph - Iceman CAI and Borla catback
    86 GLHS #169 Mom's - complete Super 60 car
    87 Shelby Z 14.16 Dad's - mostly stock, no sh*t!
    88 Shelby Z 13.5 - been in storage for 7+ years
    89 Dodge Caravan PLH - currently blown piston
    03 SRT-4 12.24 Mom's
    07 Charger 5.7L 12.99 Dad's(Mom driving)

  13. #13
    Supporting Member Turbo Mopar Contributor mock_glh's Avatar
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    Re: Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

    How much benefit is there in removing 40% of the material (strength) from that shaft? Unless you're running a dry sump system (Koffel probably did) that thing has to turn the oil pump which could be using 5 or more horsepower and putting that cut down cast iron shaft at risk.
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  14. #14
    Supporting Member Turbo Mopar Contributor zin's Avatar
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    Re: Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

    That settles it, God needs you to do this now, it was totally by accident that I stumbled upon this thread ... or was it divine intervention?

    Mike
    "The Constitution is not an instrument for the government to restrain the people, it is an instrument for the people to restrain the government - lest it come to dominate our lives and interests." - Patrick Henry

    Bad laws are the worst sort of tyranny.
    - Edmund Burke

  15. #15
    ...on your color TV screen... Turbo Mopar Contributor Reeves's Avatar
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    Re: Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

    Quote Originally Posted by zin View Post
    That settles it, God needs you to do this now, it was totally by accident that I stumbled upon this thread ... or was it divine intervention?

    Mike
    I would, except I'm in Schentactadydakfdjalfda, New York.

    James Reeves - Reeves Racing
    83 Scamp summer driver - future DC motor receiver
    86 GLH-T 9.99 at 143.78 mph - Iceman CAI and Borla catback
    86 GLHS #169 Mom's - complete Super 60 car
    87 Shelby Z 14.16 Dad's - mostly stock, no sh*t!
    88 Shelby Z 13.5 - been in storage for 7+ years
    89 Dodge Caravan PLH - currently blown piston
    03 SRT-4 12.24 Mom's
    07 Charger 5.7L 12.99 Dad's(Mom driving)

  16. #16
    Buy my stuff!!!!!!!!!!! :O) Turbo Mopar Vendor turbovanman²'s Avatar
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    Re: Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

    Now?

    Mock, Warren's is cut down, drilled and still seems to work fine.
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  17. #17

    Re: Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

    Any weight removed from a car/engine is a good thing...

  18. #18
    turbo addict
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    Re: Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

    Ok in the article caption it states the center shaft in the picture is "rifle-drilled" but was too unreliable for the IMSA cars. The shaft in the right hand picture appears to be the same shaft.

  19. #19

    Re: Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

    digging thru my piles of crap, I discovered I have one of those shafts.

  20. #20
    Buy my stuff!!!!!!!!!!! :O) Turbo Mopar Vendor turbovanman²'s Avatar
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    Re: Intermediate Shaft and Bolt Weights (aka oil pump drive shaft or aux shaft)

    Quote Originally Posted by moparman76_69 View Post
    Ok in the article caption it states the center shaft in the picture is "rifle-drilled" but was too unreliable for the IMSA cars. The shaft in the right hand picture appears to be the same shaft.
    I think they said it twisted which I could see, high rpm for long period's of time using thicker oil.

    Quote Originally Posted by 22mopar View Post
    digging thru my piles of crap, I discovered I have one of those shafts.
    Pics!!
    1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS! 12.57@104 :O)
    1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
    2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
    2004 GSW TDI, 5 speed, fully loaded, modified.

    Aurora ignition wires for sale. Link to info

    Super60 roller cams or custom/billet cams. Link to info

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