JimVR4 95 Spyder Engine Rebuild

[awdonly]

Looks like I'm a little late to the party, but WOW!

[awdonly]

I did manage to flash the ECU but it bothered me that I couldn't interpret the ROM that shipped on the unit, all I could do was save it. I flashed the 560 injector size and latencies. Another thing that bothers me is the Chome ECU FAQ section refers to a page for the injector latencies that doesn't even HAVE a listing for the 560s. I found them by googling and landed on the Evolution forums so I figure that should be a trusted source and it was confirmed here in another thread. I did a flash and then a compare and all was fine but it took long enough to make you worry. I had a battery charger hooked up at 13V the whole time.

Did you use these values:

4.7V/3.312mSec 7.0V/1.680mSec 9.4V/1.032mSec 11.7V/0.672mSec 14.0V/0.432mSec 16.4V/0.264mSec 18.6V/0.144mSec

[J. Fast]

...
So, now I have to decide whether I can use parts of the old one and parts of the new one to get a working unit. So I take the six 5mm nuts off the painted "new" unit and find the underside of that ring is totally rusted and the paint is just hiding a really crappy part that should have been replated. So I say eff that unit, it's getting returned.

So I decide to take apart the my original since the only problem was it needed a new bearing. I removed the shaft nut with my impact driver and then went to autozone with the part and some tools and I rented the clutch puller. To my surprise I was able to turn the puller nut by hand and pull the clutch off the shaft. OK I did this in the AZ parking lot and went back in to return the tool and see about pressing out the bearing.



The bearing was installed from the side shown here and then locked in by those small tabs. The reverse side has a seat for the bearing.



The bearing for this compressor clutch is 40mm x 66mm x 24mm. Nachi is the original supplier. $45 shipped so a lot cheaper than a new compressor



40BGS39G-2DS NACHI Double-row Auto Air Conditioning Angular Contact Ball Bearing Japan 40x66x24: VXB.com Ball Bearings

Good find right there sir!

[Jimvr4]

Good find right there sir!

I can't take the credit for the part number. I found it through the other site but I did find where to buy it.

Ironically it didn't solve my problem because the bearing spun around the compressor housing and cut a groove into it. All I can say is you CAN overtighten the AC belt. The clutch housing pulling off so easily was not a good sign as it could only happen because the softer aluminum casting gave way to the hard steel bearing when the belt was overtight.

[Jimvr4]

Looks like I'm a little late to the party, but WOW!

Did you use these values:

4.7V/3.312mSec 7.0V/1.680mSec 9.4V/1.032mSec 11.7V/0.672mSec 14.0V/0.432mSec 16.4V/0.264mSec 18.6V/0.144mSec

Thanks Marc. I'v currently flashed these numbers although I have yet to make any runs with them. Should I change them?

16V - 0.628
14V - 0.748
12V - 0.928
10V - 1.208
8V - 1.688
6V - 1.900

[sergechronos]

Thanks Marc. I'v currently flashed these numbers although I have yet to make any runs with them. Should I change them?

16V - 0.628
14V - 0.748
12V - 0.928
10V - 1.208
8V - 1.688
6V - 1.900

Pretty sure those are the same numbers I have, although I'm still wrapping up my rebuild and haven't driven it yet.. I got my numbers from Gump, who I bought my injectors from. I'll look it up later.

For what it's worth about the flash btw, my first flash took a really long time and had me nervous too. Every flash since has been much quicker.

[awdonly]

Jim,

I'm 99% sure the ones I provided are the values used by the stock EVO ECU with the 560cc injectors. I haven't done the math - they may scale the same. See this post - http://www.3sgto.org/3000gt-stealth-...tml#post235567

[Jimvr4]

Replaced the expansion valve which is mounted in the evaporator. Remove the glove box and a few more bits to gain access



Here's what the AC compressor looks like inside. This is a scroll type design



Here's the manifold with the RPM sensor at the right and the pressure relief valve at the upper left. The RPM sensor is the part that wouldn't fit when I tried to attach the manifold.



Rebuilt AC compressor ready to install after filling with 5 oz of PAG 46 oil. I later re-read the manual and the entire AC system should have 5.5 oz of oil so I reduced the amount to account for oil in the other components



She doesn't drive anywhere yet but she looks DAMN good on jackstands

[FeaRpb]

Very very nice Jim

[DocWalt]

Very, very nice indeed! Great work!

Interesting that a scroll type design was used, that partially explains why there's a pretty good amount of drag when the A/C is turned on.