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Thread: Fintail engine pics.

  1. #16
    56 & 60 sl & 67 Sedan 230 Andre Hudon's Avatar
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    Re: Fintail engine pics.

    Thanks Henry, I sent them a request for a price.
    A. Hudon

  2. #17
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    Re: Fintail engine pics.

    Interchangeability Enquiry.

    Is the W110 200 940 Cylinder Head compatible with the 928 Engine Block, taking into account the water galleries, manifold ports, etc ? Are there any modifications required to make it so ? Or is this totally unworkable ?

    I may have the opportunity top purchase a reconditioned 940 Block and Head. I realize that the Crank is a 5-Bearing type and Piston Bore is 87 mm.

    I have not been able to find out detailed specs on 940 Rod Bearings, Rod and Piston dimensions.

    Are the Pistons and Rods interchangeable with 928 Crank ?, or just the Pistons on the 928 Rods. Are Crown heights the same ?

    Thoughts appreciated in advance.

    Alan

  3. #18
    Administrator JimVillers's Avatar
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    Re: Fintail engine pics.

    Alan ..... The 928 and 940 head if fully interchangeable. Here are the specifications on the bearings and rods.
    Attached Files Attached Files
    Jim Villers
    1961 190SL, 230SL 5-speed, MGB 5-speed, Porsche 356C; 1967 Porsche 911; 1950 Jeep CJ3A

  4. #19
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    Re: Fintail engine pics.

    Good Morning Jim,

    Thank you very much for your prompt and informative response. That is certainly good news - gives me confidence to proceed.

    Kind Regards,
    Alan

  5. #20
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    Re: Fintail engine pics.

    So the 2 mm difference in piston diameter does not matter? If you put the 200 head on a 190 would you need to use a 200 head gasket?
    Henry Magno
    Ward Hill, MA
    978-372-1133 wk
    617-527-1613 hm
    henry@magnorestorations.com

  6. #21
    Administrator JimVillers's Avatar
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    Re: Fintail engine pics.

    Henry .... A very astute question. Each of the 190SL parts books show different part numbers for the head gasket. The M121 parts book from 1966 does not show any of the part numbers shown in the 190SL parts books. The M121 book part number for the 940 head gasket is 121 016 34 20 and it is the only head gasket currently available from M-B (the part numbers from the 190SL parts book came up not found). So, I would assume that there is only one head gasket.

    When I did my engine, I used the head gasket in my gasket set.
    Jim Villers
    1961 190SL, 230SL 5-speed, MGB 5-speed, Porsche 356C; 1967 Porsche 911; 1950 Jeep CJ3A

  7. #22
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    Re: Fintail engine pics.

    For what it's worth, I think MB originally supplied "oversized" gaskets for when you bored out beyond a certain point. Now I think they just compromise and give you something that works, so the diameter of the cutout in the gasket may be bigger than it has to be with the idea that it's OK for the gasket to be recessed a bit if the bore is smaller.
    Henry Magno
    Ward Hill, MA
    978-372-1133 wk
    617-527-1613 hm
    henry@magnorestorations.com

  8. #23
    56 & 60 sl & 67 Sedan 230 Andre Hudon's Avatar
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    Re: Fintail engine pics.

    After driving the Fintail, now with a 6 cylinder engine with more torque, I find that rolling at 4000 RPM at a speed of 68 mph is creating too much noise and gas consumption. In order to reduce the RPM, I bought new 15" x 6 1/2" rims in lieu of 13" x 5" and new tires 205/70 R15. This will subtract 10% to the engine speed.
    To conserve the Mercedes hub caps, I found a cheap and easy way to attach them. I used spherical decorative nuts at lighting department with 8-32 screws, half inch long. I drilled and tapped the rims and installed 3 of them on each rim. The caps are tightly secured.
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    Last edited by Andre Hudon; 10-18-2014 at 09:55 PM.

  9. #24
    56 & 60 sl & 67 Sedan 230 Andre Hudon's Avatar
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    Re: Fintail engine pics.

    The only wheel rubbing against the inner fender is the driver rear wheel. The right one is clearing well. I took measurements to find that the left drum is recessed 15mm compare to the right one. There is no traces of accident or rear rebuilt on this car. I cannot believe that Mercedes had built some models with an asymmetrical rear end!

  10. #25
    56 & 60 sl & 67 Sedan 230 Andre Hudon's Avatar
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    Re: Fintail engine pics.

    As I expected, Mercedes did it well. I posted my problem to the Pagoda group, they answered that bushings on the Panhard rods are worn. I did not know that a Panhard bar was used or they associate the trailing arms to a Panhard rod. Will try to locate it and check distance between front an rear wheels if they are both sides identical.
    Update:
    After checking, the distances between front and rear wheel are identical. There is a Panhard bar on the passenger side in front of the rear axle. Bushings are like new, probably a wrong installation from the previous owner.
    Last edited by Andre Hudon; 10-19-2014 at 11:17 AM.

  11. #26
    56 & 60 sl & 67 Sedan 230 Andre Hudon's Avatar
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    Re: Fintail engine pics.

    I am back now to Canada, still freezing last night. I installed first thing this morning the beauty rings I bought this winter. Looks great for $40.
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    ________________________________
    André Hudon

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