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Forum: C4 Tech/Performance Yesterday, 05:10 PM
Replies: 20
Views: 319
Posted By WVZR-1
Good to see the OP 'remove and drove on' - He'll...

Good to see the OP 'remove and drove on' - He'll know soon enough if it's a done deal for him or not.

The CTS-V has had 'coupling vibration' issues mentioned for years. There's been various...
Forum: C4 General Discussion 04-19-2018, 10:22 PM
Replies: 9
Views: 217
Posted By WVZR-1
GM SPO mentions through '87 Mirrock from...

GM SPO mentions through '87

Mirrock from time to time offers them on eBay. Here's a link where you can inspect from all sides, top and bottom.
...
Forum: C4 Tech/Performance 04-19-2018, 06:01 PM
Replies: 8
Views: 218
Posted By WVZR-1
"1976Ls1' on eBay should be able to help you. I...

"1976Ls1' on eBay should be able to help you. I understand his brackets/hardware are first class. I've never bought but a friend has. He was happy.
Forum: C4 Tech/Performance 04-18-2018, 09:31 PM
Replies: 6
Views: 219
Posted By WVZR-1
I'm sure Scott did you well. CKT 451 is pin...

I'm sure Scott did you well.

CKT 451 is pin A9 on the ECM and passes through C237 cavity E to the B cavity of the ALCL/ALDL WHT/BLK wire. Unplug C237 and check for continuity to pin B of the...
Forum: C4 Tech/Performance 04-18-2018, 09:41 AM
Replies: 97
Views: 1,545
Posted By WVZR-1
I don't believe the 15V should be considered...

I don't believe the 15V should be considered unreasonable and very dependent upon battery condition BUT since you're on #2 I think the only correct test would be a 'carbon-pile' load test of the...
Forum: C4 General Discussion 04-17-2018, 06:30 PM
Replies: 4
Views: 155
Posted By WVZR-1
M4.2x1.41x25 . I bought either Auveco or W&E...

M4.2x1.41x25 . I bought either Auveco or W&E hardware when I did it, I replaced nearly all visible with the same to make match. The body shop supplier here local carries both so whatever he gave me....
Forum: C4 General Discussion 04-17-2018, 03:37 PM
Replies: 5
Views: 161
Posted By WVZR-1
An L98 water pump mounting bolt is spec'd @ 1...

An L98 water pump mounting bolt is spec'd @ 1 3/4 long so measure thickness of the flange and subtract from the 1 3/4, that should give you a general dimension of thread required for install....
Forum: C4 Tech/Performance 04-17-2018, 11:42 AM
Replies: 12
Views: 379
Posted By WVZR-1
Housing is '91+ LT1/4 L98 - LT1/4 DMF I'm...

Housing is '91+ LT1/4

L98 - LT1/4 DMF I'm not familiar with but I'd think GOOGLE would be a friend.
Forum: C4 Tech/Performance 04-15-2018, 07:49 AM
Replies: 6
Views: 219
Posted By WVZR-1
In your older thread you mention the 1227165 and...

In your older thread you mention the 1227165 and that's correct for the car. Code 51 I believe can also mean 'incorrect' so I'd remove the PROM and identify it if possible. Remove the PROM from the...
Forum: C4 Tech/Performance 04-14-2018, 05:34 PM
Replies: 5
Views: 173
Posted By WVZR-1
That slot on the fender panel is generally maybe...

That slot on the fender panel is generally maybe the 'first' modification.
Forum: C4 General Discussion 04-13-2018, 08:47 PM
Replies: 2
Views: 152
Posted By WVZR-1
Take a bolt with you to a hardware store and I'd...

Take a bolt with you to a hardware store and I'd expect likely M8x1.25. I don't know if I've any loose bolts to check with a screw pitch gauge or not. It might be a good excuse for you to buy a...
Forum: C4 Tech/Performance 04-12-2018, 09:52 AM
Replies: 14
Views: 336
Posted By WVZR-1
Since the headlamps/controller etc are an always...

Since the headlamps/controller etc are an always 'powered' device what you're hearing is to be considered normal. Bad bushings? Maybe but I'd think it's just the controller resetting itself during...
Forum: C4 Tech/Performance 04-12-2018, 08:57 AM
Replies: 12
Views: 192
Posted By WVZR-1
D74 was a $58 option in '87 and I don't see the...

D74 was a $58 option in '87 and I don't see the option for an '86. I'd say that suffices for your availability question. It appears that only about 1/2 of the buyers opted for it.
Forum: C4 Tech/Performance 04-12-2018, 08:35 AM
Replies: 10
Views: 251
Posted By WVZR-1
In this snapshot maybe it will be easier for...

In this snapshot maybe it will be easier for someone to tell you what goes where. If you don't have the inner brace mounted that satisfies one position I'd think so there's only one maybe that needs...
Forum: C4 General Discussion 04-12-2018, 07:30 AM
Replies: 5
Views: 182
Posted By WVZR-1
This is most likely a C68 (ATC) car and the...

This is most likely a C68 (ATC) car and the 'generally'accepted repair is replacing the blower control module.
Forum: C4 General Discussion 04-11-2018, 10:20 AM
Replies: 27
Views: 601
Posted By WVZR-1
There will be no rebuild of the Bilstein. The...

There will be no rebuild of the Bilstein. The Summit choice was maybe a poor one. If they said 'will fit' maybe they'll credit all 4 with a nudge. You certainly intended well and it's not a DIY...
Forum: C4 Tech/Performance 04-11-2018, 10:09 AM
Replies: 28
Views: 614
Posted By WVZR-1
You mention probing A5 but unable to reach. I...

You mention probing A5 but unable to reach. I don't believe you need to go all the way to the ECM. This image isn't from an '86 FSM but it ID's C238 and and it's more easily reached. First as silly...
Forum: C4 General Discussion 04-09-2018, 07:38 PM
Replies: 13
Views: 219
Posted By WVZR-1
Most walking around a C4 in a parking lot or a...

Most walking around a C4 in a parking lot or a 'show floor' would pick up on unusual choice of hardware used to assemble it. I did mention earlier your car so .....
Forum: C4 General Discussion 04-09-2018, 06:19 PM
Replies: 13
Views: 219
Posted By WVZR-1
BRIGHT AND SHINY for exterior of a C4 I'd think...

BRIGHT AND SHINY for exterior of a C4 I'd think isn't very desirable.

The 'spinning washer' serves a purpose. It allows the washer to contact the painted surface and prevents the tightening of the...
Forum: C4 Tech/Performance 04-08-2018, 10:05 AM
Replies: 11
Views: 495
Posted By WVZR-1
Gear at the rear is for 'oil pump drive'! Just...

Gear at the rear is for 'oil pump drive'! Just slide in? Yes and requires appropriate indexing at front cam/crank drive mechanism.
Forum: C4 Tech/Performance 04-08-2018, 07:42 AM
Replies: 13
Views: 298
Posted By WVZR-1
10128423 for #7 - you should be able to verify...

10128423 for #7 - you should be able to verify from this link except in this image it will be #6 NLA OE/GM new but from time to time inexpensive I'd think on eBay or maybe a call to the Corvette...
Forum: C4 Tech/Performance 04-07-2018, 07:29 AM
Replies: 13
Views: 298
Posted By WVZR-1
This might do for mounting. Do you have the...

This might do for mounting. Do you have the missing brace? The 3d brace you see is from the compressor/alternator mounting support. Is that maybe the one you're questioning?

48271801

I stumbled...
Forum: C4 Tech/Performance 04-07-2018, 06:29 AM
Replies: 2
Views: 245
Posted By WVZR-1
recovery 48271798 unlock 48271799 ...

recovery

48271798

unlock

48271799

disable
Forum: C4 Tech/Performance 04-05-2018, 12:52 PM
Replies: 28
Views: 614
Posted By WVZR-1
Get 'brand and model' of the scanner. If it...

Get 'brand and model' of the scanner. If it happens to be a GM Tech1 it would require a 'specialty adapter' to do '86 thru '89 TPI and it seems there were maybe issues with very early '86 cars.
...
Forum: C4 Tech/Performance 04-04-2018, 11:21 AM
Replies: 28
Views: 614
Posted By WVZR-1
Find someone with a 'scanner' or maybe check for...

Find someone with a 'scanner' or maybe check for burnt out bulb or missing bulb - 3 solutions!
Showing results 1 to 25 of 500

 
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