Ed Scherer

I've seen references to Drei ("Three") Bond 1209 as being a great sealant — do a web search on it (maybe along with hondabond and yamabond); they might even be the same thing.

Is this needed even with the GTS filler neck that I'll be using?

OK, noted, thanks!

worf928 (Dave C.) also mentioned (reference 1, reference 2, reference 3) resealing the GTS filler neck with black RTV; I'll be doing that, too.

OK, will do. One more parts order...

Ed Scherer

For the record, the "928INTL block off plate" that Stan (Mrmerlin) mentioned is 928 107 707 05 at 928 International, pictured below. One is on its way.

Once again, thanks for the timely tip, Stan.

Mrmerlin

I would use the HB4 instead of the RTV it resists oil better than the RTV does and use a bead of it on both side of the plate and on the O ring on the fill tube ge generous The DRI could also be a substitute for the HB4

Ed Scherer

A few posts back, I mentioned:

Well, the "blind hole bearing puller" that I ordered from T-Vac Tools last week, did, in fact arrive today and it works!

You still need to pry the needle bearing cage and pins out (5 minutes max), and then use the bearing puller: it will catch the outside lip of the remaining outer ring. Pop the slide hammer a few times and out it comes in mere seconds.

No Dremeling!

First couple photos show the outer ring in "half extracted" state.

Ed Scherer

Got my stuff back from Industrial Coatings in Kansas City, KS today (well, yesterday, actually; it's after midnight now. ). Powder coater guy said that the prep was quite a bit of work; not too surprising. I provided him with a 12-page document describing recommended masking and plugging of all the parts, which he seemed to follow pretty closely.

Anyway, I'm happy with the results. Hope to have all this stuff back on the car within a week or two. I still have a bunch of stuff to do before I'm ready to put everything back together, and I'm not able to work on it as much as I'd like.

Powder was from TIGER Drylac. Base coat was Silver Hybrid 09/90190. Top coat was satin clear. I'll be adding colored lettering (the "red/black" kit) from Nicole (Hooked on Cars) on the cam covers and intake before I put them back on the car.

I probably could have done some prep work myself for slightly better results. You'll notice some pits here and there due to imperfections in the original castings. I knew that would happen and it's one of the reasons I went with a slightly textured finish.

Photos aren't that great. I just took them a couple of hours ago in the garage with some mixed color-temperature lighting; you might notice some of the strange color transitions on some of the photos.







A couple of 100% (1:1) crops from the previous photo (shows you what this finish looks like really close-up):










I had them leave the inside surfaces bare metal, with the intention of never having to worry about any finish flaking off and being ingested into the engine.

cold_beer839

Looks Great!!

Landseer

Well done. Very well done.
Can you share the 12 page document?

AO

Loooks like a quality job. Make sure you wash out those parts. You don't want any residual blast media to be sucked in.

Ed Scherer

Thanks!

Yes... I planned on doing that anyway. See "Powder coating intake/cam covers/etc. best practices"; I'll be updating post #1 in that thread and including a link to an updated version of that document within the next week when I have time.

Andrew, I've been thinking about that... especially after re-reading "How can this be? No compression in all 8 cyls ?". (Summary for those who didn't follow that saga: engine destroyed by left over glass bead blast media left in intake ) Then there's the thread "Intake Refresh 1990 - I'm beginning to suspect", which in post #7 includes this notable quote: "Blackshark inadvertantly fed his engine what we believe to be a somewhat small amount of soda blasting media. To say the results were not pretty would be an understatement. The engine ran less than 30 minutes and completely destroyed all the brand new rod bearings, cylinder walls, rings, etc. Basically everything that moves within the engine is now toast. Please clean that intake until everything that comes out is totally clean."

Anyway, they used aluminum oxide media for blasting my parts. I haven't seen any trace of it anywhere, but I'm not sure exactly what I'm looking for (I'm guessing something that's about the size of a fine sand?) I've heard of media being embedded in the intake, too, which seems quite possible given how rough some of that surface is after blasting.

So... just to make damn sure any blast media residue (and any other loose stuff?) is out of there, is it good enough to just hose everything out? I'm not especially wanting to use a pressure washer, for fear of messing up the nice finish.

AO

I filled up my bathtub and then swashed it around. Then a whole bunch of dunk and drains. Worked for me.

Ed Scherer

Helen will be happy about that. Like the time I baked the brake rotors in the kitchen oven.

I'll get photos.

Thanks!

SeanR

Ed, those look fantastic. Well done.

John Speake

I'm told dishwashers do a very good job...... not that I have ever done such a dastardly act :-)

AO

I guess I should have added that this was done at my rental down in Ohio = no spousal input.

dprantl

Don't forget to remove the coating from the mating surfaces of the temp sensors.

Dan
'91 928GT S/C 475hp/460lb.ft