[dave g]

What i thought was a MAF prob appears to be a toasted exhaust valve as the #1 cyc. has no compression. any thoughts out there as to what causes exhaust valves to go? excess heat for sure, but what causes that? I have had leaking valve guides which means from time to time oil levels have gone down. perhaps that's the culprit.

Im gunna keep the car for a daily driver for our daughter in years to come, so i don't mind repairing it... as original owner, i know every repair and maintenance factor and its a top car running wise. Until a good diesel product comes to our shores, she's gunna keep on keepin on for us..

thxs..

 

[CHAG AUTOSPORT 1]

Re: Brunt Exhaust Valve-what causes the heat build up? (dave g)

once you open the head i have a feeling your going to find a large amount of carbon on the valves and valves seats which means that when the valve is closed the build up of carbon prevents the heat from escaping hense you get a burnt valve

 

[Chilled Man]

Running Lean ... ****ty Gas

 

[heavyiron]

Re: (Chilled Man)

Running lean is what got my engine- from what my tech said it looked like a fuel supply issue since I had three burned valves and bad compression rings across all five

Oh well, new engine and all its goodies are almost done 10 weeks later and for a paltry $7500