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General Category >> Rubber Side Down! >> Intake leak detection
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Message started by DrunkenDwarf on 07/18/10 at 13:52:10

Title: Intake leak detection
Post by DrunkenDwarf on 07/18/10 at 13:52:10

Since WD40 doesn't use propane as it's propellant anymore, is there a suggested alternative that's safe for the rubber/plastic?

-D. Dwarf

Title: Re: Intake leak detection
Post by jabman on 07/18/10 at 14:46:27

try some starter fluid the revs should shoot up make sure the wind doesnt carry it into the air box tho and give you a false diagnosis

Title: Re: Intake leak detection
Post by DrunkenDwarf on 07/18/10 at 20:20:00

Thanks jabman.

Do you know if it matters if the engine is warm or not?

-D. Dwarf

Title: Re: Intake leak detection
Post by jabman on 07/19/10 at 01:09:36

no i don't think so im going to try this today to make sure i don't have any leaks :)

Title: Re: Intake leak detection
Post by DrunkenDwarf on 07/19/10 at 17:30:29

How'd it go?

For some reason I thought starter fluid damaged the rubber around the carb. Hate to create a leak trying to find one.

-D. Dwarf

Title: Re: Intake leak detection
Post by buttgoat1 on 07/19/10 at 18:36:35

try a propane torch, unscrew the end of the burner and push a rubber hose on it, then you can guide the hose wherever you need it.

Title: Re: Intake leak detection
Post by DrunkenDwarf on 07/19/10 at 18:43:50

55425144424542514E230 wrote:

try a propane torch, unscrew the burner and push a rubber hose on it

I've got an old fashioned, manual light, propane torch. For sweating copper. I'm just out of propane at the moment.

Just seems slightly more dangerous than the WD40 approach.

-D. Dwarf

Title: Re: Intake leak detection
Post by buttgoat1 on 07/20/10 at 09:23:30

everything has an element of danger, some more so than others.
The propane should be fairly safe because it will only ignite if the fuel-air ratio is close to ideal. Using it in the open should allow the excess to dissapate safely.

Title: Re: Intake leak detection
Post by jabman on 07/20/10 at 11:59:11

do you think gas would find a exhaust header leak as well?

Title: Re: Intake leak detection
Post by Digger on 07/23/10 at 21:29:02

606B68676B640A0 wrote:

do you think gas would find a exhaust header leak as well?

I doubt that, but I did have an idea for finding exhaust leaks a while back. I've never tried it, though.

The idea was to introduce some Sea Foam into the combustion chamber. Let it sit for about 10 minutes or so. Then, start 'er up.

There will be lots of smoke. You should be able to thus find any exhaust leaks visually.

If you try it, let us know how it works!

Title: Re: Intake leak detection
Post by DrunkenDwarf on 07/25/10 at 17:49:39

32393A353936580 wrote:

do you think gas would find a exhaust header leak as well?

I used my daughter's bubbles on a cold engine. No bubbles, no leak.

-D. Dwarf

Title: Re: Intake leak detection
Post by verslagen1 on 07/25/10 at 18:02:09

2F26232A302723420 wrote:

I used my daughter's bubbles on a cold engine. No bubbles, no leak.

-D. Dwarf

My daughter gets all bubbly too, but I wouldn't use that on even a cold engine. :o

Title: Re: Intake leak detection
Post by Serowbot on 07/25/10 at 18:04:43

If you hold a cigarette near the pipe connections, you'll see the smoke get puffed away from a leak...

...if you don't smoke,... try an incense stick...

...if you don't like incense,... light your pants on fire...:-?...