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Forum: C4 Tech/Performance
07-16-2010, 10:09 AM
Replies: 8
Views: 571
Posted By mcox8051

Yes, he put a Hotcam in it. The A/C was fine, I...

Yes, he put a Hotcam in it. The A/C was fine, I didn't notice any power loss or vibration before I removed the intake. It feels like someone pulls off a plug wire when I turn the A/C on now. I think...
Forum: C4 Tech/Performance
07-15-2010, 03:59 PM
Replies: 8
Views: 571
Posted By mcox8051

Well, I don't know if it is a pressure problem,...

Well, I don't know if it is a pressure problem, but it seems odd that its doing this now since I had the intake off and it wasn't doing it before. The A/C was serviced about 2 months ago, a shrader...
Forum: C4 Tech/Performance
07-15-2010, 10:29 AM
Replies: 8
Views: 571
Posted By mcox8051

Damaged rocker update - A/C question

I got the Grand Sport back together yesterday and fired it up today. This was the LT4 that had the rocker arm come off #6 exhaust valve. After weighing in everyones opinion I decided to trust the...
Forum: C4 General Discussion
06-24-2010, 04:20 PM
Replies: 20
Views: 1,113
Posted By mcox8051

http://i955.photobucket.com/albums/ae37/mcox8051/G...

http://i955.photobucket.com/albums/ae37/mcox8051/Grand%20Sport/GS2-1.jpg?t=1277411090
Forum: C4 Tech/Performance
06-23-2010, 09:30 AM
Replies: 43
Views: 15,030
Posted By mcox8051

Good advice. The cheapest I have found for the...

Good advice. The cheapest I have found for the stock springs is $137 plus shipping from GM Parts Direct.
Forum: C4 Tech/Performance
06-22-2010, 11:48 PM
Replies: 43
Views: 15,030
Posted By mcox8051

Ok, lying in bed I realized how my test doesn't...

Ok, lying in bed I realized how my test doesn't prove anything. If the valve were bent it would still pull up to the same point. What about pushing it down? It is hitting the piston as it sits. Since...
Forum: C4 Tech/Performance
06-22-2010, 10:24 PM
Replies: 43
Views: 15,030
Posted By mcox8051

I agree, but if using the titanium retainers...

I agree, but if using the titanium retainers could guarantee that this doesn't happen again, I'm all for them. The next time I may not be so lucky, and there are 15 more chances for failure. I do not...
Forum: C4 Tech/Performance
06-22-2010, 10:19 PM
Replies: 43
Views: 15,030
Posted By mcox8051

There was a recall on early LT4's, mine is a...

There was a recall on early LT4's, mine is a later build date. Seems the pin that held the roller on the tip of the rocker was backing out.
Forum: C4 Tech/Performance
06-22-2010, 09:06 PM
Replies: 43
Views: 15,030
Posted By mcox8051

Thanks everybody. I talked to Dale at Tach It Up...

Thanks everybody. I talked to Dale at Tach It Up Motorsports, the guy who is going to fix my other problem: the clashing noise at start up. He suggested a cylinder leak down test to see if the valve...
Forum: C4 Tech/Performance
06-21-2010, 04:49 PM
Replies: 43
Views: 15,030
Posted By mcox8051

Yes, this car is actually a Grand Sport Edition...

Yes, this car is actually a Grand Sport Edition and I am a member as of buying this car two months ago. My car was later after those getting re-called, number 616. I have posted this scenario there...
Forum: C4 Tech/Performance
06-21-2010, 10:27 AM
Replies: 43
Views: 15,030
Posted By mcox8051

Soldierboy609, did you remove the head and check...

Soldierboy609, did you remove the head and check the valve?
Forum: C4 Tech/Performance
06-20-2010, 03:24 PM
Replies: 43
Views: 15,030
Posted By mcox8051

Ok, thanks everybody on the advice. What are...

Ok, thanks everybody on the advice. What are "arp's"? When you start talking about replacing parts, I don't know what to buy. What brands, etc. Is there more than one GM Hot cam? Thats what the guy...
Forum: C4 Tech/Performance
06-20-2010, 09:21 AM
Replies: 43
Views: 15,030
Posted By mcox8051

Sounds like I will have to pull the head. I have...

Sounds like I will have to pull the head. I have a couple of friends who race and do their own engine work, I will consult them. There are not any speedshops around and not many shops at all...
Forum: C4 Tech/Performance
06-18-2010, 10:39 PM
Replies: 43
Views: 15,030
Posted By mcox8051

I will try the borescope first to look at the...

I will try the borescope first to look at the piston. Do auto parts stores rent them? The valve does turn smoothly and goes up and down freely. I'm hoping it just rode up and down on the piston and...
Forum: C4 Tech/Performance
06-18-2010, 06:52 PM
Replies: 43
Views: 15,030
Posted By mcox8051

I can't imagine the cam being worn, it has less...

I can't imagine the cam being worn, it has less than 1500 miles on it. And the guides on the roller are not worn. Its almost like it may have floated or whatever, enough to let the keys come loose. I...
Forum: C4 Tech/Performance
06-18-2010, 05:04 PM
Replies: 43
Views: 15,030
Posted By mcox8051

The pushrod is perfectly straight. Can I do a...

The pushrod is perfectly straight. Can I do a compression check to see if the piston has a crack or hole? What could cause the rocker arm to jump off the valve? I see what you mean by guide plates...
Forum: C4 Tech/Performance
06-18-2010, 03:45 PM
Replies: 43
Views: 15,030
Posted By mcox8051

Rocker arm came off valve - damaged

New problem today with my '96 Grand Sport or maybe the old problem has gotten worse? I'm still getting opinions on the clashing noise on startup. Bill at ZR51 Performance says that if it were the...
Forum: C4 Tech/Performance
06-08-2010, 12:33 PM
Replies: 14
Views: 767
Posted By mcox8051

The starter was not the problem. It seems these...

The starter was not the problem. It seems these manual transmission cars are notorious for the clutch ball coming loose which makes the clutch fork scrape something, I assume the pressure plate. I...
Forum: C4 Tech/Performance
06-01-2010, 02:48 PM
Replies: 14
Views: 767
Posted By mcox8051

Yes it could be the cause of my problem. Have...

Yes it could be the cause of my problem. Have you had yours fixed yet? Wondering about the procedure and the cost? Thank you!
Forum: C4 Tech/Performance
06-01-2010, 02:34 PM
Replies: 14
Views: 767
Posted By mcox8051

Loud clanking/grinding on start up

I need some help on my 1996 Corvette LT4, 6 speed. There is an occasional loud clanking or grinding when I turn the key on the car. Sounds just like when you have some teeth missing on a starter gear...
Showing results 1 to 20 of 20


 
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