Blackstone G.S.I 38 bhp spring injection

Discussion in 'Help Wanted' started by picklesquirt, Aug 10, 2019.

  1. picklesquirt

    picklesquirt Member

    Need some advice. A local friend has had this engine for some time, in a kit of parts. We are trying to fit the camshaft but can't find any markings for meshing the gear drive from crankshaft to the camshaft. I have downloaded the handbook from I.F and the index says page 5 has details for fitting the crankshaft. Unfortunately pages 5 & 6 appear to be missing from the downloaded handbook.
    Do we have to mesh these gears by reference to the valve timing or should these gears be marked with their meshing teeth. Any advice would be appreciated.

    Many thanks
  2. picklesquirt

    picklesquirt Member

    Perhaps a picture would help.

    Cheers IMG_5108.JPG
  3. petternut

    petternut Moderator

    Black1.jpg black2.jpg Ewan, I hope the attached will be some help. From a manual covering CSI - PSI.

    Attached Files:

  4. picklesquirt

    picklesquirt Member

    Many thanks Roland,
    I do in fact have both these pages from the manual I downloaded from I.F ( 64 pages in total ) Yours are somewhat clearer. The download is missing pages 5 & 6 which, from the index refer to installing the crankshaft. I can't believe that the gears should not be marked for the meshing position. We can work back from your pictures but the side shaft is a heavy brute and may well have to be fitted more than once to achieve the correct position.
    Would you be kind enough to let me know ,if you have pages 5 &6, if they are relevant to my problem.

    Nice to hear from you
    Best Regards
  5. petternut

    petternut Moderator

    Here's P5 though not sure how much it helps. Timing these buggers seems to be a black art. black3(1).jpg
  6. picklesquirt

    picklesquirt Member

    Excellent Roland,
    We have been looking for timing marks on the gears. The top of your page 5 shows a mark on the camshaft and a corresponding one on the bearing housing, with the big end balance weights hanging vertically. That is very helpful, will remember your further comment when we try to time it finally. I'm sure you have written numerous books on Black Art !!

    Great help as always

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