10V Cylinder Stud Spacing

[miniburrell]

Hi All

I am now at the stage to start assembling my 10V, but have to drill and tap the studs , has any one got any tips on how i can achieve equal spacings and hoe to line up the stud holes on the standard to correspond with the ones in the cylinder.

Hope the above makes sence, any tips will be greatly appreciated.

Thankyou

MB

[jasonb]

If you have a mill with DRO then drilling using co-ordinates is probably the best way, it can also be done using the handwheel dials if you allow for any backlash. Zeuz book has the formulas for working out PCD spacings.

If You only have a lathe & drill press then one way is to make a simple jig. This would take the form of a "washer" with the 4 tapping size holes drilled in it, these can be set out by stepping out the spacing using dividers. Mark the washer with which side goes against the cylinder so any errors in marking out will not be an issue

To drill the cylinder & A frame you need a stub of metal thats a good fit in the bore and the washer and this will keep the two concentric. Clamp the washer to the part, drill tapping size and in the case of teh standard then open out to clearance.

Jason

[Paul Boscott]

Hello I have made a few v10 in various formats this is the method i used on the last one the pictures show a jig that fits in to the cylinder, trunk and on the other side fits the step on the head.

The felt pen marks are for the trunk / bottom cylinder

It is good if you can get is so that it fits any way around but if you mark the jig and the sides of the cylinder even if your jig is out the hole paten will be in the same place on both parts.

I made the last one with eight head studs to try and give the impression of a larger engine to a smaller scale
see you tube www.youtube.com/watch?v=vAI1daFh1dg

[miniburrell]

Many thanks for the tips guys, the 10v is now getting closer to having a final assembly