17-03-2018, 12:54 AM
(16-03-2018, 11:09 PM)Stuart Giles Wrote: Welcome to the forum.
Ian is referring to the setup used on the British Austin 7 motor, where the front camshaft bush is retained by a bolt that goes through the top face of the crankcase. Here's a photo where it's visible.
Not sure that the arrangement is quite the same on the American Austin motor if your crankcase looks like this one that i snapped at the Carlisle PA swapmeet a few years ago.
As Ian says, some pics of your motor would definitely help.
![[Image: 26977944868_93b8f0e8d7_k.jpg]](https://farm1.staticflickr.com/788/26977944868_93b8f0e8d7_k.jpg)
![[Image: 25976303597_2d83447fa8_h.jpg]](https://farm5.staticflickr.com/4772/25976303597_2d83447fa8_h.jpg)
Attached is photo of my motor. My bushing appears to be to far forward compared to your photo. My retaining bolt is also cocked rather than the head fitting flush. I am guessing that when the bushing is further to the rear it prevents the camshaft from moving forward.
I purchased the motor as having been rebuilt about 30 years ago and never run. I am certain that 30 years ago anyone rebuilding an Austin motor would have limited information on how to do the job coorectly