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wayne1234 |
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#1
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Member ![]() ![]() Group: Members Posts: 260 Joined: 6-April 09 From: indianapolis in Member No.: 10,238 Region Association: None ![]() |
Ok dual webber carbed 2.0, I think the PO had the head vents running to a T then to the oil breather near the oil cap... Is this right?? I did a search and now I'm really confused,,,,
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HAM Inc |
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#2
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Senior Member ![]() ![]() ![]() Group: Members Posts: 846 Joined: 24-July 06 From: Watkinsville,GA Member No.: 6,499 Region Association: None ![]() |
I'm not intersted in argueing with anyone, but when someone implies that I'm stupid enough to make judgements based on observations made on a chassis dyno with kinked breather hoses...I have to respond!
QUOTE You people must have had a head vent tube kinked, with a down and up loop trapping , and draining oil, through some wierd siphon process. No kinks or wierd process; just good ol' gravity. QUOTE the hot VAPORS/WATER-IN THE FORM OF STEAM will rise to the catch tank to condense back into what they were.. Those vapors don't originate from the rocker cavities, they are a by product of blowby. No justification for venting the heads there. QUOTE AND JAKE RABY I was building 914 RACING engines,and 356 RACING ENGINES, and 911 RACING ENGINES, and doing complete turn key race cars........when you were still crapping in your diapers. SO DO NOT tell me what engines to specialize in. Oh Lord, not another one of those! When someone says something like that it is obvious that they feel they know it all and have nothing left to learn. And I suppose you were also reading and writing when Jake was still pooping in his diapers, but it hasn't kept him from doing a better job with his grammer. There's a reason I quit reading Cormac McCarthy! You reminded me of it. QUOTE AS we all know the 914 heads are susceptable to cracking, and warping. Anything that can be done to remove heat from them just adds longitivity, and reliability. So VENT the head and help get some of the heat out of them....MURRAY . Okay now you're just being rediculous. If your implication is that venting the rocker chambers will somehow reduce the propensity to cracks and warpage you need to let to go of the crack pipe and and take a closer look at one of these engines! I spent a lot of time on this subject. Jake and his team at Aircooled Heaven were involved and Jake conducted the tests (that's tests plural, there were many) while I observed the funtion of the various breathing systems we worked with. The results surprised all of us, including me. But the test were done using a scientific method and then the system was put to the test on the track with a season of racing...hard racing. The results were no leaks, no blowby issues, slightly lower oil temps and superb reliability. If you have a stock FI engine that uses the vents, keep that system intact. It actually draws air into the rocker chambers and pulls oil toward the bottom end. If you have a carbed engine breath it from the chimney and if you are concerned about the condensation run the hose into a can about an inch or so above the bottom so you can drain the condensation. I have said all I have to say about this. |
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