11-02-2021, 01:49 PM
Thanks to everyone for the comments and advice
I am familiar with the Metalock process and agree that there is not much metal to play with in this regard
Much happier now as the three rather nice blocks (apart from the subject crack) are usable. One of them has never been bored having a worn standard bore. It may cause some consternation but I am using a stepped stud arrangement to secure the head with the block being tapped 9 x 1.25mm. In the case of the inlet/exhaust manifold I have again used stepped studs 7 x 1mm into the block
Having spent a significant time in the forging industry I use 4140 rather than K1045 for studs
One of the crankcases I was contemplating using had the starter securing bolts out to 7/16" and I wanted to open up the area and build it up but the aluminium was very difficult to weld. It would seem that we have a satisfactory job but I have yet to see if we have any distortion problems.
Again thank for taking the time to reply
Jim
Perth
Australia
I am familiar with the Metalock process and agree that there is not much metal to play with in this regard
Much happier now as the three rather nice blocks (apart from the subject crack) are usable. One of them has never been bored having a worn standard bore. It may cause some consternation but I am using a stepped stud arrangement to secure the head with the block being tapped 9 x 1.25mm. In the case of the inlet/exhaust manifold I have again used stepped studs 7 x 1mm into the block
Having spent a significant time in the forging industry I use 4140 rather than K1045 for studs
One of the crankcases I was contemplating using had the starter securing bolts out to 7/16" and I wanted to open up the area and build it up but the aluminium was very difficult to weld. It would seem that we have a satisfactory job but I have yet to see if we have any distortion problems.
Again thank for taking the time to reply
Jim
Perth
Australia