| Author | Message | ||
| Adelina Vallese (Dina)
|
Great stuff Peter, I was going to say something about head jobs but decided not to! Most impressed with your progress. I got a real rush from just changing my heater hoses. You will be on seventh heaven when you start up that engine for the first time! Regards from Dina | ||
| Warren E. Smith (Magoo)
|
HEY BUDDY, You're doin a hell of a job. Everybodys talkin about ya. All kidding aside Peter looks like you're doing a great job. | ||
| BretM (Bretm)
|
I for one am impressed. It's cool to see the pics of the work in progress. Good luck with the rest of it. | ||
| '75 308 GT4 (Peter)
|
Most may wonder why its taking me so long to do this rebuild, here's why: As you may remember a post I placed a few months back that I bent some exhaust valves. This happened because the valve guide was sloppy. This allowed the valve to rock back-and-forth in the guide, enough to make the edge of valve head clip the cutout on the piston. If this happens long enough, well the valve will eventually break. What I've done here is punch out the old guides, press in new ones and as a result, must cut new valve seats (never perfectly aligns with old one). A very tedious and painstaking process. I've got two more valves to do and then the head can go back on the block and the rest of the parts. Here are some photos of the whole process: The valve train, (valve, guide, seal, spring seat, double springs, cap, keepers):  Neway seat cutter and adjustable pilot (big $$$)      After each cut/lap, a little bit of prussian blue is applied to the seat and the valve spun by hand to reveal any high/low spots.  |