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Not Again! (Blower Problems)

New 10/30/05

Okay, this is a shot of my plugs in order as they appeared from front bank drivers side. In other words the closest is number 5. Those of you that were around a couple of years ago you might remember that a blast into the 10+ psi boost range when my #5 fuel injector failed caused a noise that at first sounded like the cam tick then after a day developed into what I was sure was a rod knock. I removed the oil pan and all the rod caps but no spun bearing. I then pulled the front head and observed a pitted burned piston in the #5 cylinder. The ring ended up seizing then fracturing also causing the land between the middle and top ring to shatter.

Well when we went to Kansas last week one of the boys used Whoosh and returned it with a distinct miss. He of course denied any wrong doing. By yesterday it was blowing a pretty good cloud out the tail pipes and it required 2 quarts when I checked it on the next fuel stop. I was going to run a compression check today when I discovered this.

Carter Fuji
'97 ES

If we were to look at the Flow Dynamics in the Surge Tank, would the # 5 Runner Inlet possibly be at a high pressure backup?( i.e - Where the excess pressure builds up first when you go into boost - there would always be a little excess air available there) This would cause the engine to be leaner on one end than the other. Then, if one cylinder was consistently getting a dose of tougher living environment (running Leaner), it is possible that even though everything is tuned and fully operational You will still burn through pistons on that end. See what # 1 tests out to for compression and leakdown.

I'm betting a busted ring landing. Look for pin holing/sandpaper finish in the top of the piston too. Good Luck and take lots of pictures for the Site.


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