Most liked posts in thread: 1275 Motor Overhaul from Atlanta

Alright, it made it......now to get it out of the box and torn down this weekend so I can get the parts sent off to the machine shop on Monday.



Project #2 is supposed to arrive tomorrow or Sat morning.....more on that when it gets here.

 

I don't think the gas was the problem, I think he just mis-timed it and didn't realize the sound he was hearing was not a rattle but detonation. I'll get it running in the test bed and get the initial timing set, but the best way would be to put it on a dyno and set it there. He's running an electronic distributor that has a bunch of built in advance curves, we'll pick one that's not quite so aggressive.

 

Some more progress on this motor.

I installed the trick adjustable, belt driven cam drive kit and spent this afternoon getting the timing set right - 106* ATDC intake valve fully open. It took a while to get the set up right, then it's super easy to adjust the cam timing.



With that set I buttoned it up.

Next I'll go ahead and install the other pistons and torque everything up.

I also was lucky to find a couple gaskets for the center oil pickup in my spares stash. I don't think I'll be able to install the pick up unless I take the layshaft out first - with the screen on the end it's too long to bend around and fit in the opening with the layshaft installed.



With these things done the rest of the build will go much more quickly.....the head is done and ready to go on. with any luck by next weekend it will be headed back to Atlanta.

 

No rest for me, I need to get it crated up for shipping and shipped out, and I need to get going on this white car and I need to take the transmission off of the 998 and get it crated up and shipped out too, and....and.....and.....

 

On its way to me.....

 

All the other pistons are fine, I don't know about the spark knock, but it def could be and he just didn't understand that's the noise it was making. I think that's unlikely as he's a "car guy"......but it could be. The pattern is what's bothering me - seems like it would be worn all across or the bearings would be pounded flat.....

 

Chuck, there would be a LOT of us in that club!

 

Back end is pretty much buttoned up - clutch, flywheel and release bearing installed and adjusted.

 

I did the same on a Fiat 124 head in 69, in conjunction with a Judson supercharger it really opened up the high RPM power, and I didn't really lose any low end.
Then my buddy overhauled the transmission - it was scrunching going into 2nd - and when he got done the 5 speed was now a 4 speed! somehow he's lost 5th gear - no idea how he did that! Kids!

I laughed at your idea of me doing my own knee!

 

Fired right up, but before I could get the timing light on it or anything it died - I think my fuel pump crapped out - it was the old one off of Buzz, and the reason I replaced it off Buzz was it would quit on me - used to be I could get it going again by tapping on it, but no go this time.

(15) VID 20201209 141245 - YouTube