Red Flash

BTW, if anybody knowledgeable would like to comment on how my exhaust cam (cylinder 6) is looking (see picture in first post), I would be most interested to hear about it. I drew the conclusion personally to start using only Amsoil 20W-50 high-zinc oil for classic motors and just look again in another 40'000 miles...

Bilal928S4

Did you paint or powder coat your intake & cam covers?
What were some of the other items that came up while you were doing the refresh?

Red Flash

Just a lot of things that cost time, nothing serious:

1.) additions of things to replace (maybe USD 1'000 additional parts!)
2.) uncovering other missing things like the 2nd belly pan...
3.) waiting on things to arrive, after they got added to the list
4.) parts getting delivered to the wrong place...
5.) found out I had to clean up 2 PO stereo installs
6.) things suddenly not working, then finding broken connectors in various places
7.) lots and lots of cleaning: from motor to wheels...

It kind of amazed me, how many things had already been touched, fixed, adjusted, worked on on such low mileage cars.

But, it will be worth it.

BTW, yes, the parts are powder coated. They look good. But I am not sure in retrospect, if engine enamel would not have been good too. Honestly, everybody just talked about powder coating, so I followed the herd... Now, I ask, if it was really needed!!

John

Mrmerlin

Hi John nice work the intake looks especially nice given its been painted.
and it looks like a lot of cash spent on the extras,
like a new coolant bottle and filler spout.
Did you by chance remove the metal collar in the new filler spout as well as the old rusty part in the washer tank, now is the time to remove them .
Dip the filler spout in boiling water then the collar will slide out,
chip out the collar from the tank then rinse out the tank,
this will keep rusty water out of the washer system and off the hood.
Keep the pictures coming, your doing great!

worf928

John made some progress this weekend.

Red Flash

So, I really never closed this thread. The reason was that the project got so delayed by all the things above. Worf actually took over 100% the last steps of the car, because of all the time overruns that came up! Then I immediately showed up to take the car on my road trip half way through the United States. :-)

I have to therefore thank some people for extensive help and advice for a successful topend refresh:
1.) Worf for technical questions and wrenching
2.) Jeannie from 928 Specialists for parts and questions
3.) Roger from 928's R Us for parts and questions
4.) Greg for the high quality fuel lines
5.) Hans for the great speakers

The main summary here for me would be:
1.) This took much longer than I thought it would. Not a problem, but if you want to do this right and do it once, you need to really budget lots of time for all the unexpected small things.
2.) Cosmetically, there were a few points. The powder coating had a few bubbles in it. It's hard as nails and looks good and shiny though. Also, the plating on the bolts was not optimal because I guess it was done in too high humidity. Not a problem. But things to think about for others. Avoid this kind of work in humidity. So, weather becomes also a variable in this kind of project.
3.) Finally, I noticed a problem on the bolts between surfaces on the intake that had ben powder coated. Particularly the side plates shown below. This obliged me to dismantle a few things and re-assemble with locktight.
4.) Last issue that came up was with the LH control unit. I had a little problem with surging after the rebuild. This finally corrected itself after I disconnected and reconnected the battery. It looks like the adaptive control adapted itself to a test air mass meter I was using (while the rebuilt one found its way to the correct delivery address.) Also, in the process I found out that my LH unit had been chipped.

Getting ready to get the GT out next week for the Summer. So, after so much work, now time to enjoy.

Attached a few pics:

Lizard928

It looks awesome!

However, I'm sorry I missed this thread until now.
Your cams need to be removed and touched up or be replaced. The lifter under that love will be destroyed, the longer you run it, the more material will be removed and the worse it will get.

You should also consider upgrading the valve springs as the stock springs are not enough for GT camshafts.

NickT

Nice job, I like the color scheme.. Very clean.

Red Flash

Thanks Nick. Kind of stock looking. But, I finally liked that best!

Red Flash

Colin

I thought about this a lot. Finally, the only lobe really showing any pitting is the one I showed above and it is really minimal. That's one lobe out of all of them. Thinking about the easy service this car gets, mostly road miles at reasonable RPM, I for better or worse made the decision to pass on replacement right now and look at it later. Maybe 15.000 miles or so.

We will see. I have pictures and will compare later. :-) Maybe I will pick up some spare cams for later.

Thanks for sure for the input though!