Compression issue? Parts and guide to fix

Discussion in 'Mech Tech' started by jameswick89, Mar 19, 2020.

  1. OMG I just got the engine started for a few seconds, was very very loud and smokey because the exhaust isnt on yet
     
  2. Zed

    Zed Gradually getting grumpier

    :chewie:
     
    JamesLey likes this.
  3. Get it bolted on then.. you'll be tuning tomorrow and out for a spin!

    Sent from my SM-T580 using Tapatalk
     
    JamesLey likes this.
  4. I've stopped now as I will definitely upset the neighbours without the exhaust on. I have such a big smile I honestly thought I was going to have to take it to a garage
     
    Lasty, Deefer66, paradox and 6 others like this.
  5. Take it to a garage...never..with the wisdom and experience on here it can all be worked out...eventually...
     
    Valveandy, Little Nellie and Zed like this.
  6. 77 Westy

    77 Westy Supporter

    Your problems started by taking it to a garage. Don’t make that (expensive) mistake again.

    Just out of interest what did you set the hydraulic lifter preload to?
     
    Lasty likes this.

  7. I would answer that if I knew what you ment :(, I am guess this is important and something I should have done
     
  8. Well done :thumbsup:

    Couldn`t believe you were contemplating a return to the garage of doom after the mountain you`ve climbed and learning how it all goes together - chapeau sir :hattip:


    :hattip:
     
    Zed likes this.
  9. I'm not out of the woods just yet I'm fighting with the exsuaht at the moment and need to fit the tin were around the fan and but I honestly wouldnt have been able to get this far without all your help
     
    Lasty likes this.
  10. Zed

    Zed Gradually getting grumpier

    Before you start it read about setting the tappets for the hydraulic followers.
    Did you fill them with oil?
    Is the timing set or just guessed to make it start?
     
  11. 77 Westy

    77 Westy Supporter

    Solid lifters are set with a gap – tappet clearance – but hydraulic lifters must have a preload.

    The adjustment procedure is the same as for solid lifters but instead of setting a clearance you screw the adjuster until it just touches the valve stem, then a further 1½ turns. It’s not super critical, and not everyone agrees as to what is should be, but it should be something, some say ½ turn some say 2, anywhere in between is fine.
     
    Deefer66, Zed and jameswick89 like this.
  12. Wheres the man gone?

    He can't leave us hanging....! Have the neighbours got their own way and removed the bus, leaving him lying in the layby, looking up at nothing?
    Did the big backfire take him out at waist level?
    Has he bogged off, camping, in a perfectly running bus?

    What? Where? When?
    We need to know!
     
  13. MorkC68

    MorkC68 Administrator

    @Stedlocks

    Doreen from next door to SweenyTodd has nipped down to see him in her tranny :eek:
     
    Deefer66 likes this.
  14. Hahah sorry I took a little trip to the seaside yesterday sadly I went in the car:(.

    I can get the engine started but only if i give it gas. Wondering if there is another issue that isnt the timing
     

  15. I just guessed I'm thinking of the delicate work of fine tuning I'll take it to someone
     
  16. Zed

    Zed Gradually getting grumpier

    Maybe not got the copper gaskets
    Wrong. It's easy and if you drive it first you could wreck it on the way. :)
    Timing light, cheapest is fine. £20-30 well spent. That's it. Carbs should be fine and can be balanced by eye if not.
    Did you fill those hydraulic followers? If not you'll have to fish them all out again. No getting around that and no engine running beforehand.
     
  17. Gun on order should I buy a space gauge to, when the sun comes out I will fish the lifters out.
     
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  18. Zed

    Zed Gradually getting grumpier

    Tools are good. :)

    Do you have a manual?

    What's a space gauge?
     
  19. Perhaps @jameswick89 means a feeler gauge?
     
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  20. That is definitely what I ment
     
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