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General Site Info => General Discussion => Topic started by: DnStClr on August 25, 2007, 11:54:30 am

Title: Finding Vacuum Leaks
Post by: DnStClr on August 25, 2007, 11:54:30 am

I was cruising on Hotrodders.com and found a bit of useful info for finding vac leaks. The 1st two methods have been mentioned here before, but I found the bottom info pretty good for guys rebuilding an engine.


http://crankshaftcoalition.com/wiki/How_to_Find_Vacuum_Leaks (http://crankshaftcoalition.com/wiki/How_to_Find_Vacuum_Leaks)

Title: Re: Finding Vacuum Leaks
Post by: VileZambonie on August 25, 2007, 02:30:01 pm

I just made a powerpoint on vacuum & pressure. If anyone is interested in it either pm me your email address or post it here. Lotsa good stuff in there including tools and techniques.

Title: Re: Finding Vacuum Leaks
Post by: CHawk on August 26, 2007, 07:04:39 am

Vile,

Very interested to see your power point!

ywaf1999@msn.com

Thanks!

Title: Re: Finding Vacuum Leaks
Post by: Captkaos on August 26, 2007, 08:53:16 am

Vile, you can upload it to this post if it isn't huge.

Title: Re: Finding Vacuum Leaks
Post by: VileZambonie on August 26, 2007, 09:49:56 am

Chawk - sent.

I'd rather email it to anyone who wants it since I will be incorporating it into my curriculum once it's all said and done at which point it becomes copywrited material.

Title: Re: Finding Vacuum Leaks
Post by: CHawk on August 26, 2007, 06:12:03 pm

Thanks Vile!  Haven't had a chance to check it out yet due to work...I'll check it out tomorrow.

Thanks again!

Chris

Title: Re: Finding Vacuum Leaks
Post by: cochese on September 09, 2007, 11:47:56 pm

hello vile,
i would also like to see the powerpoint if it's still available. 

gavila77@gmail.com

thanks

Title: Re: Finding Vacuum Leaks
Post by: Mr79C10 on September 23, 2007, 06:26:19 am

Quote from: VileZambonie on August 25, 2007, 02:30:01 pm

I just made a powerpoint on vacuum & pressure. If anyone is interested in it either pm me your email address or post it here. Lotsa good stuff in there including tools and techniques.

Me too please.
  David@ProFastSupplyJAX.com

Much Thanks!

Title: Re: Finding Vacuum Leaks
Post by: VileZambonie on September 23, 2007, 07:42:05 pm

sent

Title: Re: Finding Vacuum Leaks
Post by: jays2w87 on September 23, 2007, 08:14:21 pm

yah, I'll take a copy if its not too much trouble.

Title: Re: Finding Vacuum Leaks
Post by: jays2w87 on September 23, 2007, 08:14:53 pm

oops
jay.tran@yahoo.com

Title: Re: Finding Vacuum Leaks
Post by: shpark2 on October 01, 2007, 12:35:21 pm

Vile, if it is still available - I could use a copy too.  I'm having a -_- time with my idle/fast idle/choke setup, it would be nice to cross vacuum problems off my list of suspects.

pbess@telus.net

Title: Re: Finding Vacuum Leaks
Post by: VileZambonie on October 01, 2007, 02:03:49 pm

With your idle problem 1st thing I would do is set your timing. Then play with the idle. Wait til it's cold and set up the fast idle and choke plate.

Title: Re: Finding Vacuum Leaks
Post by: shpark2 on October 01, 2007, 02:30:43 pm

Thanks for the file Vile!  I will definitely refer to it in the future.  I got my timing set to 4 BTC as per air cleaner label, assuming timing tab is in the right place.  My idle mix screws are 2+1/4 turns out, thing starts great cold, then dies almost as quickly without foot on the gas to prop it up.  After propping it up for 45-60 secs, it will idle itself. 
I have a dual delayed vacuum setup, as you probably assumed.  Two pots on the passenger side, one I think is secondary lockout of sorts, the other is choke pulloff?
I suspect choke assembly, when I stick my finger in choke blades to open it - with engine off - it stays open, even when I push throttle open after.  I have to push it back closed, and it doesn't seem to seal totally.  Same when I push down on idle cam behind choke pulloff pot/fast idle adjust screw, it stays where it was pushed - until I push down on rod/close choke valve by hand.

When the engine is off, choke valve should be spring loaded and seal off completely - as the secondary air valve is?
If I pull a vacuum on my choke pulloff, the fast idle adjustment should contact and open the choke valve slightly byway of the linkage?

I realize now I should have put this in a different topic.....

Title: Re: Finding Vacuum Leaks
Post by: VileZambonie on October 07, 2007, 03:20:11 pm

Figured this pic might help some of you

(http://i6.photobucket.com/albums/y228/Sabaka454/vac.jpg)

Title: Re: Finding Vacuum Leaks
Post by: okuma on October 07, 2007, 06:55:10 pm

Very interested to see your power point Ville! ;)     okuma111@yahoo.com

Title: Re: Finding Vacuum Leaks
Post by: jays2w87 on October 07, 2007, 08:38:02 pm

They mentioned propane in the presentation. Holy smokes !

Title: Re: Finding Vacuum Leaks
Post by: VileZambonie on October 07, 2007, 08:51:49 pm

they?  ;D

propane is very effective and safe just use the tool like the one pictured.

http://www.tooldiscounter.com/ItemDisplay.cfm?lookup=THE382&source=froogle&kw=THE382

Title: Re: Finding Vacuum Leaks
Post by: JJSZABO on October 10, 2007, 07:42:25 am

Please, may I have a copy?

jjszabo@comcast.net

Thanks,

Jeff