[Help! just replaced blowen head gasket - running bad]

To continue this thread......(let me know if I'm stepping on anyone here)

 

What is ya'll's thought on having the head rebuilt while it's off? The car was running fine, just a small head gasket leak(77' 280z). I don't have the tools to do it myself, so is it really worth it, or should I just replace the gaskets and keep on cruising?

[Engine hunts at warm idle]

OK, so there is a whistling sound back by the #6 fuel injector and EGR valve. I've used dish soap and now carb cleaner, but I can't seem to find any leaks. Is this a normal sound? Or could it be the sound of the EGR leaking by?

[Engine hunts at warm idle]

OK, so I took the EGR valve and the valve right next to it off, they look fine, EGR valve moves freely. The hoses are in good shape. I checked the timing, but could only get it down to 15, Chilton's says it should be at 10. The spark plugs and wires are new and in good shape.

 

The car idles great at 900 rpms, but suddenly drops to the 500-700 rpm range a little after start-up and continues in a loping or hunting condition. I keep thinking that I can hear a leak on the drivers side near the EGR valve, but used half a bottle of soap and couldn't find anything.

 

Any idea's?

[Engine hunts at warm idle]

Hello all, I've looked through a lot of these threads, but everyone seems to have another issue that goes along with the hunting. However, my new 77' 280Z runs great. Starts right up, idles high until it's warm, it's all good.

 

BUT once it's warm, it's hunting(may technically be a surge) around 500-700rpms. I replaced the fuel filter, air filter and ran sea foam already, but no cigar. It revs fine, plently of power off the line and at speed.

 

I have 2 days off and am too sore to keep skiing, so any ideas would be greatly appreciated and will be tested asap. Thanks. Zim.