JimVR4 95 Spyder Engine Rebuild

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

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Originally Posted by Jimvr4

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.

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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

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Originally Posted by Jimvr4

...
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.

http://jns.jimnshar.com/55a00ab0.jpg

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.

http://jns.jimnshar.com/55c00ab0.jpg

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

http://www.vxb.com/mm5/graphics/0000...ds-nachi-2.jpg

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

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Good find right there sir!

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Originally Posted by J. Fast

Good find right there sir!

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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.

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Originally Posted by awdonly

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

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Quote:

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Originally Posted by awdonly

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

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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

Quote:

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Originally Posted by Jimvr4

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

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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.

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

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

http://jns.jimnshar.com/57100ab0.jpg

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

http://jns.jimnshar.com/57500ab0.jpg

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.

http://jns.jimnshar.com/57900ab0.jpg

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

http://jns.jimnshar.com/57d00ab0.jpg

She doesn't drive anywhere yet but she looks DAMN good on jackstands :lo5l:

http://jns.jimnshar.com/58100ab0.jpg

http://jns.jimnshar.com/58300ab0.jpg

Very very nice Jim

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.