Morks Type 4 1800 AP engine project

Discussion in 'Mech Tech' started by MorkC68, Nov 1, 2013.

  1. MorkC68

    MorkC68 Administrator

    as soon as I put it in the case half, it didn't look as it should do!
     
    Majorhangover and Paul Weeding like this.
  2. Christ on a bike.....I started reading this and thought I'd be splitting the case again!! Sooooooo glad I'm taking a million pics as I go along.

    Hope you get it sorted ASAP mate. Btw, did you know she did a fast taxi the other week?
     
    MorkC68 likes this.
  3. MorkC68

    MorkC68 Administrator

    We did a double take :eek: pics is the way to cross reference!

    Yeah I knew about the fast taxi, Im on the Facebook group for her :D I think the guys are doing an anti det run fairly soon, I need to get back up at some point, see whats been happening!!
     
    paulandchez likes this.
  4. MorkC68

    MorkC68 Administrator

    In between us having crankshaft bearing issues, we got stuck in with mounting the cam gear onto the camshaft and checking the bolts against the oil pump
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    Sorted!
    Cam gear bolted down and torqued up to 18lbs ft
    cam gear bolts to oil pump clearance is ~0.2mm
    I ran a dial gauge on the cam gear, it ran spot on, 0.06mm variation as it was rotated!
     
    Last edited: Jul 14, 2017
  5. MorkC68

    MorkC68 Administrator

    77 westy told us earlier about the mod VW carried out to assist the piston cooling by notching the conrod at the top by 1.5mm..we thought it a good idea too :)
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    Angle plate set up on the Bridgeport, small 4mm diameter cutter and jobs a good un :D
     
    Last edited: Jul 14, 2017
  6. Zed

    Zed Gradually getting grumpier

    0.2mm? I know it won't hit it but still...
     
  7. MorkC68

    MorkC68 Administrator

    Now back to the matter of the incorrectly drilled bearing. We have got the weekend to have a think about what to do!

    BigRich has been really helpful and phoned round trying to source a set of Silverline or Mahle bearings with 0.75mm/std/std sizes, no one has them including Stateside - there are no lead times on delivery either..
    We have two choices, one is get a set ordered and wait for them to be delivered

    two, redrill the hole as there is plenty of meat between the incorrect hole and the actual oil gallery on the right hand case half (TES who reground the crank suggested it, Jim at Stateside said it is do able as a worse case scenario). In reality, we don't think it should be a problem re drilling as the bearing is a full one, its got a smaller one close by and when lubricated correctly it theoretically shouldn't see any high stress..we are open to suggestion here!
     
  8. MorkC68

    MorkC68 Administrator

    Hmm :eek: the bolt head was reduced by just over a mm, when we measured the gap, there wasn't any gaskets fitted
     
  9. MorkC68

    MorkC68 Administrator

    And in the meantime, I collected this 'box today

    [​IMG]
     
    Datsolow likes this.
  10. MorkC68

    MorkC68 Administrator

    theres a good inch between them!
     
  11. Hmmm nice box :p
     
    MorkC68 likes this.
  12. I said drill it earlier ;)
     
    paulandchez likes this.
  13. MorkC68

    MorkC68 Administrator

    Yep you did!!! We wanted a consensus of drilling it will be fine v don't do it..the vote is cast at two of you for drilling :D

    Drilling it is I think - I will mull it over some more though
     
  14. The bearings are wrong. Get new correct ones sent out free of charge and fit them. Drill the others for spares.
     
  15. MorkC68

    MorkC68 Administrator

    theres none available with a 0.75 o/s crank size, Rich at Coolair has been calling round for me!
     
  16. Confused?
    So these bearings are the right oversize but drilled wrong?
     
  17. MorkC68

    MorkC68 Administrator

    yep, they are 0.75/std/std which is spot on. The #3 main bearing (one before the small fan hub end) has its dowel peg and oilway hole correct for the left hand case half but the right hand case half oil hole is an inch out of line!
     
  18. MorkC68

    MorkC68 Administrator

    Following on from the incorrectly drilled bearing situation, its now drilled correctly; we set the old bearing up in the dividing head on the old faithful Bridgeport, took notes on where the dowel hole was, the closest oil gallery hole and used these positions as our initial reference points on the x - y display. Lined the new bearing up and voila, sorted!

    Pilot hole
    [​IMG]

    To size:
    [​IMG]
     
    Last edited: Jul 14, 2017
    Paul Weeding likes this.

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