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Technical 216 flywheel on 235

Discussion in 'The Hokey Ass Message Board' started by 1950fleetline, Aug 31, 2019.

  1. 1950fleetline
    Joined: Jun 1, 2017
    Posts: 63

    1950fleetline

    I’ve got a 216 flywheel on my 235 that I’ve just installed, I decided to use the the 216 flywheel so I could continue to use the new starter from the my previous 216.
    I’m having a hard time setting the timing.
    Not using the original flywheel makes me wonder if the timing marks are not the same between the two. Have any of you guys ever used a 216 flywheel on a 235? If anyone has any advice I appreciate it,
    Thanks!



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  2. 302GMC
    Joined: Dec 15, 2005
    Posts: 5,730

    302GMC
    Member
    from Idaho

    Crank it up 'til it spark knocks, back it off until it just goes away.
    The ball & stamped info are within a couple degrees on all the 216 - 235 - 261 Chevs.
     
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  3. 1950fleetline
    Joined: Jun 1, 2017
    Posts: 63

    1950fleetline

    Thank you


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  4. 1950fleetline
    Joined: Jun 1, 2017
    Posts: 63

    1950fleetline

    Still no luck.
    turning the distributor either way does very little, can’t even get the engine to run at all without full choke.
    I’ve searched for any type of intake or any other vacuum leak with no results. Is it even possible that I put the flywheel on wrong? I was under the impression that couldn’t happen due to the spacing of the studs.


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  5. RMONTY
    Joined: Jan 7, 2016
    Posts: 1,359

    RMONTY
    Member

    Is this an engine you rebuilt recently and are trying to fire for the first time, or something that was running before you swapped the flywheel and you are just not able to get it to run now?
     
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  6. BJR
    Joined: Mar 11, 2005
    Posts: 5,828

    BJR
    Member

    Maybe you put the distributor in 180 degrees off?
     
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  7. Binger
    Joined: Apr 28, 2008
    Posts: 1,606

    Binger
    ALLIANCE MEMBER
    from wyoming

  8. 1950fleetline
    Joined: Jun 1, 2017
    Posts: 63

    1950fleetline

    Rebuilt engine
    first start up was pretty good, was able to run 20 minutes with no problems
    Now the only way I can get it to run is with the choke on, just stalls right out with choke off, I know the carburetor did work good because it was working fine on another engine a week ago.
    I am using the engines fuel pump that was on it when I got it, perhaps some crud inside that fuel pump has made its way to my carburetor??
    Thank you for the reply



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  9. 1950fleetline
    Joined: Jun 1, 2017
    Posts: 63

    1950fleetline

    I’ve thought of that,
    Right now I have it to #1 after rolling the engine over till I feel compression on my finger while holding it over the first spark plug hole than line up the BB on the flywheel to the pointer on the bell housing,
    Thank you for the reply


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  10. RMONTY
    Joined: Jan 7, 2016
    Posts: 1,359

    RMONTY
    Member

    If it ran "pretty good" on initial start up, and you haven't made any major changes, I would suspect fuel issues if you are having to choke it.
     
  11. 302GMC
    Joined: Dec 15, 2005
    Posts: 5,730

    302GMC
    Member
    from Idaho

    OK, let's have your compression readings and valve clearances …
     
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  12. 1950fleetline
    Joined: Jun 1, 2017
    Posts: 63

    1950fleetline

    120 compression
    .006 intake
    .018 exh
    On the valves.



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  13. RMONTY
    Joined: Jan 7, 2016
    Posts: 1,359

    RMONTY
    Member

    Have you had any sort of backfires at all? Does the engine turn over smoothly when trying to crank it, or is it erratic sounding? Like it is trying to come up on a compression stroke with no where for the compression to go?
     
  14. 1950fleetline
    Joined: Jun 1, 2017
    Posts: 63

    1950fleetline

    Definitely had a couple backfires
    Some spitting of gas out of the top of the carburetor as it stalls,
    It does seem to turn over smoothly when cranking or when turned over by hand.
    Thank you for the response!
    This is really got me stumped!!


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  15. RMONTY
    Joined: Jan 7, 2016
    Posts: 1,359

    RMONTY
    Member

    I would clean the points, and regap them, and then I would run a temporary wire from the positive terminal of the battery to the coil. That eliminates any sort of electrical problem. Both can be done quickly and easily. If you have a small tank you can suspend above the carb, you can make sure you have fuel delivery. Basically put the engine on life support and go from there.
     
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  16. 1950fleetline
    Joined: Jun 1, 2017
    Posts: 63

    1950fleetline

    Good idea, I’ll give it a try!
    Thank you!!


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  17. Fiftee3
    Joined: Oct 1, 2015
    Posts: 106

    Fiftee3
    Member

    I also run a 216 flywheel on my 53 Chevy pick up with 235. I know it’s silly, but double check firing order and trace wires. I thought I would never make that mistake and did it TWICE! Good luck.
     
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  18. 1950fleetline
    Joined: Jun 1, 2017
    Posts: 63

    1950fleetline

    Good call,
    I will double check that for sure!
    Thanks


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  19. Countn'Carbs
    Joined: Nov 8, 2006
    Posts: 826

    Countn'Carbs
    ALLIANCE MEMBER
    from CO

    Backfires point to timing. I'd start with static timing the distributor at 8-10 degrees advanced and triple check plug wires like fiftee3 mentioned.
     
  20. Jokester
    Joined: Jan 29, 2005
    Posts: 332

    Jokester
    Member

    If it runs with full choke, it's getting air elsewhere. Tighten up all the manifold and carb bolts.

    .bjb
     

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