leakdown test kit, where to get?
William Wixon
engine? in my sthil (026 chainsaw) manual they also call for a vacuum
pressure test too on the crankcase, how about that? anybody know where to
get a inexpensive leak down kit that also does vacuum?
Jerry Foster
"William Wixon" <wwi...@frontiernet.net> wrote in message
news:2c70j.20798$ya1....@news02.roc.ny...
Try any auto parts store. They sell a combination pressure/vacuum gauge and
a little hand vacuum pump, both general purpose tools for a variety of
diagnostic/maintenance functions.
Jerry
Bob
Horrible Fright has a cheep leakdown tester, don't think it does
vacuum tho............
Bob
Pete Snell
Easy to build. Blank off both intake and exhaust, put a pressure gauge
(0-10psi is good) on one blank. Make a fitting for the sparkplug hole
(from an old sparkplug!) with a schraeder fitting. Use a bicycle pump to
pressurize to about 6psi (no more!). Pressure should hold, or drop less
than 1/2 psi in a minute. If it doesn't, go looking for the leak with a
bit of soapy water and a paintbrush. Same setup with a gauge that will
read neg pressure will work for a vacuum. (take the core out of the
valve stem though)
Pete
--
Pete Snell
Department of Physics
Royal Military College
Sne...@rmc.ca
---------------------------------------------------------------------
Only the guy who isn't rowing has time to rock the boat.
Jean-Paul Sartre (1905-1980)
Jim Stewart
Try Aircraftspruce.com
Standard tool for 2-stroke ultralight engines.
William Wixon
wow, that's depressing, and i had my hopes up.
CAM CORRECT PRESS/VAC TESTER 12-00739 $229.95
almost as much as a brand new chainsaw.
thanks anyhow.
b.w.
William Wixon
"Jerry Foster" <jmfoster...@sbcglobal.net> wrote in message
news:LO80j.21355$Pv2....@newssvr23.news.prodigy.net...
>
> Try any auto parts store. They sell a combination pressure/vacuum gauge
> and
> a little hand vacuum pump, both general purpose tools for a variety of
> diagnostic/maintenance functions.
>
> Jerry
>
>
thanks Jerry, i guess that's what i'm gonna have to rig up.
b.w.
William Wixon
"Pete Snell" <sne...@rmc.ca> wrote in message
news:4741a3e0$1...@win9.rmc.ca...
>
> Easy to build. Blank off both intake and exhaust, put a pressure gauge
> (0-10psi is good) on one blank. Make a fitting for the sparkplug hole
> (from an old sparkplug!) with a schraeder fitting. Use a bicycle pump to
> pressurize to about 6psi (no more!). Pressure should hold, or drop less
> than 1/2 psi in a minute. If it doesn't, go looking for the leak with a
> bit of soapy water and a paintbrush. Same setup with a gauge that will
> read neg pressure will work for a vacuum. (take the core out of the valve
> stem though)
>
> Pete
>
thanks Pete.
i've done a leakdown test before, i rigged up a leakdown tester years ago
for a Cuyuna 430 2 stroke, but the repair manual only asked me to do a
pressure test, not a vacuum test (like the stihl handbook is), i
didn't(/don't) know where to get a vacuum pump and a gauge that reads
vacuum, i mean, for less than the $229 aircraft spruce is asking for theirs.
b.w.
Pilgrim
"William Wixon" <wwi...@frontiernet.net> wrote:
I think HF has a vacuum pump/gage kit. It was on sale in one of the last
catalogs.
Chuck P.
Pete Snell
>
> thanks Pete.
> i've done a leakdown test before, i rigged up a leakdown tester years ago
> for a Cuyuna 430 2 stroke, but the repair manual only asked me to do a
> pressure test, not a vacuum test (like the stihl handbook is), i
> didn't(/don't) know where to get a vacuum pump and a gauge that reads
> vacuum, i mean, for less than the $229 aircraft spruce is asking for theirs.
>
One of these; <http://www.mityvac.com/pages/products_hvpo.asp> or
<http://www.amazon.com/Equus-3660-Vacuum-Brake-Bleeding/dp/B000EVYGXC>
should work with the setup I mentioned previously.
Cheap too.
Pete
--
Pete Snell
Department of Physics
Royal Military College
Sne...@rmc.ca
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Leon Fisk
<pil...@noemail.net> wrote:
>I think HF has a vacuum pump/gage kit. It was on sale in one of the last
>catalogs.
>
>Chuck P.
Yes they do, two of them that would probably work okay. At
least for one job/repair ;-)
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Let us know how you come out with this.
--
Leon Fisk
Grand Rapids MI/Zone 5b
Remove no.spam for email
Bruce in Bangkok
>William Wixon wrote:
>
>>
>> thanks Pete.
>> i've done a leakdown test before, i rigged up a leakdown tester years ago
>> for a Cuyuna 430 2 stroke, but the repair manual only asked me to do a
>> pressure test, not a vacuum test (like the stihl handbook is), i
>> didn't(/don't) know where to get a vacuum pump and a gauge that reads
>> vacuum, i mean, for less than the $229 aircraft spruce is asking for theirs.
>>
> One of these; <http://www.mityvac.com/pages/products_hvpo.asp> or
><http://www.amazon.com/Equus-3660-Vacuum-Brake-Bleeding/dp/B000EVYGXC>
> should work with the setup I mentioned previously.
>
>Cheap too.
>
>Pete
Don't auto tool shops still sell those pressure/vacume gages that
every mechanic used to carry to check intake manifold vacuum and fuel
pump pressure? As I remember it they were pretty cheap.
Bruce-in-Bangkok
(Note:remove underscores
from address for reply)
Jim Stewart
How does $69.50 sound....
http://www.thetoolwarehouse.net/shop/STR-CLT2PB.html
My mechanic turned me on to this place for tools...
Pete Snell
>
> How does $69.50 sound....
>
> http://www.thetoolwarehouse.net/shop/STR-CLT2PB.html
>
> My mechanic turned me on to this place for tools...
I've got to warn you that this isn't the tool you want to do a
leakdown test on a 2-stroke engine. The pressure it uses is far too
high, and you would probably end up popping the crankseals out of your
engine. These types of leakdown testers are used in 4-stroke engines,
where you're just checking the integrity of the combustion space. On a
two stroke, you're also checking the crankcase and intake tract
integrity, usually with about 6psi max. The leak tester in the link
attaches directly to your air compressor, and will pressurize the
crankcase of your 2-stroke far above what it would normally see.
Pete
--
Pete Snell
Department of Physics
Royal Military College
Sne...@rmc.ca
---------------------------------------------------------------------
It is not the critic who counts: not the man who points out how the
strong man stumbles or where the doer of deeds could have done better.
The credit belongs to the man who is actually in the arena.
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