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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*1500\s+Venting\s*$/: 39 ]

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1. 1500 Venting (score: 1): Author: Larry Elswick <sos@kymtnnet.org>; Date: Fri, 30 Mar 2001 18:47:05 -0500; All this talk about crankcase pressure relief has me wondering. I just finished a rebuild and added an electric fuel pump. I also added the vent pipe from the fuel pump opening. I still have the vent; /html/spitfires/2001-03/msg00782.html (7,373 bytes)
2. Re: 1500 Venting (score: 1): Author: Joe Curry <spitlist@gte.net>; Date: Fri, 30 Mar 2001 16:51:20 -0700; Unless you see oil venting into the carbs it probably won't heur to leave it as is. I routed mine to the catch tank, but I don't have a standard air cleaner on my car anyway! Joe; /html/spitfires/2001-03/msg00783.html (7,757 bytes)
3. Re: 1500 Venting (score: 1): Author: Trevor Boicey <tboicey@brit.ca>; Date: Fri, 30 Mar 2001 19:24:37 -0500; If you have the vent hose from the valve cover, then you can block off the vent pipe at the fuel pump opening. Then you have a working closed system. -- Trevor Boicey, P. Eng. Ottawa, Canada, tboicey; /html/spitfires/2001-03/msg00784.html (7,977 bytes)
4. Re: 1500 Venting (score: 1): Author: Trevor Boicey <tboicey@brit.ca>; Date: Fri, 30 Mar 2001 19:32:47 -0500; I wouldn't leave it as is, because technically that creates a "short circuit", an air leak for the intake system via the block. The vacuum in the HS-4s is supposed to suck any excess crankcase pressu; /html/spitfires/2001-03/msg00785.html (9,312 bytes)
5. RE: 1500 Venting (score: 1): Author: Craig Smith <CraigS@iewc.com>; Date: Fri, 30 Mar 2001 18:45:18 -0600; Let me tell you what I got,,,, 71, that leaks inside the drivers side motor mount. I'm wondering if the following will stop it. It only happens when I stand on it anyway. The venting that I have is f; /html/spitfires/2001-03/msg00786.html (10,540 bytes)
6. RE: 1500 Venting (score: 1): Author: Craig Smith <CraigS@iewc.com>; Date: Fri, 30 Mar 2001 19:59:34 -0600; How much pressure does the engine develop ? By what I'm looking at and reading it might be a bunch. This may be a fix to my spotting problem on the driveway. The 71 runs like a sewing machine but pus; /html/spitfires/2001-03/msg00788.html (13,026 bytes)
7. Re: 1500 Venting (score: 1): Author: Joe Curry <spitlist@gte.net>; Date: Fri, 30 Mar 2001 21:05:38 -0500 (EST); Craig (and all), I came to all my conclusions about Spit 1500 oil blowby from personal experience. Not needing any emissions stuff on a Mk1 (where my 1500 engine resides), I found no need to put all; /html/spitfires/2001-03/msg00789.html (12,489 bytes)
8. Re: 1500 Venting (score: 1): Author: Joe Curry <spitlist@gte.net>; Date: Fri, 30 Mar 2001 21:06:53 -0500 (EST); Yes, YOu will have a closed system that will blow oil out the Dipstick Joe; /html/spitfires/2001-03/msg00790.html (8,758 bytes)
9. Re: 1500 Venting (score: 1): Author: Trevor Boicey <tboicey@brit.ca>; Date: Fri, 30 Mar 2001 21:25:34 -0500; I think we are back to the old problem where "emissions" devices are removed without being fully understood. The proper, original venting system consists of a bit of hose and a few plastic bits, like; /html/spitfires/2001-03/msg00792.html (9,388 bytes)
10. Re: 1500 Venting (score: 1): Author: Trevor Boicey <tboicey@brit.ca>; Date: Fri, 30 Mar 2001 21:40:08 -0500; No. You blow oil out of the dipstick hole if your engine has no venting at all, because there is nowhere for the pressure to go, and it finds someplace. When you have a proper vent hose from the valv; /html/spitfires/2001-03/msg00793.html (9,042 bytes)
11. Re: 1500 Venting (score: 1): Author: Trevor Boicey <tboicey@brit.ca>; Date: Fri, 30 Mar 2001 21:35:12 -0500; Not much, but more the older your engine is, and more the harder the engine works. For a quick test, seal all the vents, put your hand over the oil filler cap, and rev the engine a bit. You will like; /html/spitfires/2001-03/msg00794.html (8,675 bytes)
12. Re: 1500 Venting (score: 1): Author: Joe Curry <spitlist@gte.net>; Date: Fri, 30 Mar 2001 21:39:06 -0500 (EST); Trevor Responded Trevor, What the hell is wrong with you? Apparently, you either can't read or don't comprehend what I am saying. The emissions gear that is removed consists mainly of a lump of steel; /html/spitfires/2001-03/msg00795.html (10,592 bytes)
13. Re: 1500 Venting (score: 1): Author: Joe Curry <spitlist@gte.net>; Date: Fri, 30 Mar 2001 21:54:32 -0500 (EST); Trevor in his typical fashion proclaimed: Tube!!! Trevor, In theory it should work that way. But in practical application it does not. Been there, done that! My suspicion is that the pushrod tube cha; /html/spitfires/2001-03/msg00797.html (10,070 bytes)
14. Re: 1500 Venting (score: 1): Author: Trevor Boicey <tboicey@brit.ca>; Date: Fri, 30 Mar 2001 22:16:24 -0500; The air pump is in no way related to the crankcase ventilation system that we are talking about here. More to the point, removing the air pump in no way requires you to start thinking about jars and; /html/spitfires/2001-03/msg00800.html (9,952 bytes)
15. Re: 1500 Venting (score: 1): Author: Joe Curry <spitlist@gte.net>; Date: Fri, 30 Mar 2001 22:18:05 -0500 (EST); " The air pump is in no way related to the crankcase ventilation system that we are talking about here. More to the point, removing the air pump in no way requires you to start thinking about jars an; /html/spitfires/2001-03/msg00801.html (9,574 bytes)
16. Re: 1500 Venting (score: 1): Author: Trevor Boicey <tboicey@brit.ca>; Date: Fri, 30 Mar 2001 22:32:04 -0500; Literally hundreds of millions of cars sold worldwide use similar systems for crankcase venting, including to this day. (most modern cars have a one way valve called a PCV valve in the line, that's t; /html/spitfires/2001-03/msg00802.html (10,646 bytes)
17. Re: 1500 Venting (score: 1): Author: Vic Whitmore <vicwhit@home.com>; Date: Fri, 30 Mar 2001 23:20:15 -0500; Bull.... Trevor. I just have to wade into this, probably since I started the whole thing off. The discussion is not over what is right or wrong, emission wise, but what is the best solution to fix a; /html/spitfires/2001-03/msg00808.html (13,420 bytes)
18. Re: 1500 Venting (score: 1): Author: "Larry Vaughan" <lvaughan@pldi.net>; Date: Fri, 30 Mar 2001 23:25:43 -0600; "You can't crush cars with a university degree." You can crush young minds, with greenie weenie bullshit, while they are captive in the university environment. Larry; /html/spitfires/2001-03/msg00809.html (8,256 bytes)
19. Re: 1500 Venting (score: 1): Author: Trevor Boicey <tboicey@brit.ca>; Date: Sat, 31 Mar 2001 00:37:22 -0500; Agreed, you cannot use ported vacuum for this job for the reasons you talk about. However, there are other sources of vacuum to be had. Have you checked the manifold? I have done this exact job on tw; /html/spitfires/2001-03/msg00810.html (10,462 bytes)
20. RE: 1500 Venting (score: 1): Author: Craig Smith <CraigS@iewc.com>; Date: Fri, 30 Mar 2001 23:39:31 -0600; Damn, wish there was a southern saying for this ! "You can't crush cars with a university degree." You can crush young minds, with greenie weenie bullshit, while they are captive in the university e; /html/spitfires/2001-03/msg00811.html (8,519 bytes)

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