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> Type IV Trivia Question, On Topic
seanery
post Apr 25 2004, 08:23 PM
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What happens when you are at 6k rpms on the front stretch and miss 4th and shift to 2nd?
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Joe Bob
post Apr 25 2004, 08:27 PM
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Float the valves, over rev the motor, hand grenade the motor.....sometimes.... (IMG:style_emoticons/default/rocking nana.gif)
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Gint
post Apr 25 2004, 08:28 PM
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Personal experience? This weekend's DE? You?
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seanery
post Apr 25 2004, 08:35 PM
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see today's tip #3 in DE thread.

car is still at the track. Doesn't sound like valves, not burning or blowing oil through exhaust, but it has a nice steady flow of oil pouring out when the car is running. I'm afraid it's a hole in the case. (IMG:style_emoticons/default/sad.gif) Renting a trailer tomorrow to go pick it up.
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Gint
post Apr 25 2004, 08:37 PM
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Sux! Sounds like you had fun though.
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Joe Bob
post Apr 25 2004, 08:38 PM
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Ouch...sorry to hear about that..... (IMG:style_emoticons/default/headbang.gif)

If ya need a motor FAST let me know....operators are standing by... (IMG:style_emoticons/default/smilie_flagge24.gif)
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J P Stein
post Apr 25 2004, 08:41 PM
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Ouch.........

Broken push rod/tube, maybe.....valve cover?

Sounds like the hole is above the normal sump oil level.
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seanery
post Apr 25 2004, 08:41 PM
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It all depends what it needs. I have a case lined up if it's the case. If it's p/c or topend that's another story. I'll keep y'all informed.
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seanery
post Apr 25 2004, 08:43 PM
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JP, I was thinking maybe pushrod tube. We'll see though. It sounds decent, but not quite right.
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Aaron Cox
post Apr 25 2004, 09:01 PM
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OMG that sucks! (IMG:style_emoticons/default/ohmy.gif)

Did it go baboom like a hand grenade???? it would be topend / vlavetrain stuff right?
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seanery
post Apr 25 2004, 09:03 PM
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not a baboom, just a very high rev. It's either a hole in the case or pushrod tube I think.
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Aaron Cox
post Apr 25 2004, 09:05 PM
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hole in the case... from what? thrown rod?(sorry. im still learning failure modes of over - revving an engine)
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seanery
post Apr 25 2004, 09:07 PM
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dunno, it's just spilling a lot of oil, gotta be a hole somewhere. Oil filter and cooler don't look like the source. If it's not a p/r tube It's gonna be pretty catastrauphic I think.
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Aaron Cox
post Apr 25 2004, 09:09 PM
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what could make a hole in the pushrod tube? bent pushrod?
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McMark
post Apr 25 2004, 09:11 PM
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Overrevved 2.0 rods are known for loosing their big ends and busting out the case.

Check on top (obviously), on the bottom (obviously), and near where the pushrod tubes enter the case (the side).
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Aaron Cox
post Apr 25 2004, 09:12 PM
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OMG (IMG:style_emoticons/default/ohmy.gif) i saw a type 1 case have that happen. man o man...it was ugly.
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914ghost
post Apr 25 2004, 10:14 PM
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Still runs?
No obvious loud knock but it's just "not right"?
I've bent pushrods before. The type 4 p/r tubes are pretty sturdy, but you could easily give one a tweek and make it leak.
Downside is, it usually means a bent valve too- if only slightly at the head.
If you float the valves enough to bend one it's usually because it was trying to close and the piston came up and had a close encounter with it before it could shut.
If you had a hole in the case ...well...that's usually obvious from my experience. If it runs with a hole, it's a sound straight from hell. Secound only to the diagonally snapped crankshaft that still locks together enough to run...thats a weird weird monster. (IMG:style_emoticons/default/unsure.gif) A friend of mine had that, I thought the engine would jump right out of the car.
-Bob O
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SirAndy
post Apr 25 2004, 10:19 PM
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dude, that sucks (IMG:style_emoticons/default/sad.gif)

she was running so nicely when i drove her ...
Andy
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seanery
post Apr 26 2004, 06:44 AM
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Andy, it was running awesome. I didn't have the straightline speed others had (911s and boxsters) but I could pick em up at the technical stuff. It pulled hard all the way to 6k. I hope it's not terminal.
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Jeroen
post Apr 26 2004, 08:06 AM
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Sean, that SUCKS!
Hope the damage isn't too bad, although it doesn't sound promising (IMG:style_emoticons/default/sad.gif)

Keep us posted on what you find...

cheers,

Jeroen
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