(02-07-2013, 05:21 PM)martyn92 Wrote: Where the bolts stick out and get in the way you can just make a thread in the plate and bolt it from the other side.
Good work though!
If I did that then the thread of the bolts would poke through though wouldn't it? Unless I have misundersood. Maybe a paint diagram would help.
(02-07-2013, 05:54 PM)Dum-Dum Wrote: How deep is the head of the countersunk bolt (between its flat and the start of the thread) and whats the diameter of the thread
Finally whats the angle of your countersunk head and whats the angle of the tip of your largest drill bit (see where im going with this)
Looks like cracking work mate, well done.
Bolt head is 4mm deep thread is M8. Not sure how to work out the angle though?
I guess you are getting at using a standard drill bit to countersink it? I did notice the holes that the drill bits were making before going through looked quite a lot like countersunk holes.
One of my concerns about this adaptation is how are those 3 M8 bolts on the turbo flange supposed to support the weight of the whole turbo hanging off the manifold? I think this turbo was designed for quite a different fitting than on a 306 because it looks quite precarious with just 3 bolts on the flange.
Maybe a simple bracket which bolts to the top mani bolt and then welded to the compressor housing might help?