The correct kind of compression guage
- Thread starter blsnelling
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Well...with 2 posts about Snap-on, I'll have to see if I can find where a Snap-on dealer is locally here in the boonies. I guess the phone book is a good place to start...
Kevin
gatkeper1
ArboristSite Guru
snap-on may be high, but they are real good about support.
they should have the tiny valve separately.
as brad said... it's a special low spring tension shrader valve.
one of my snap-on adapters was not holding, so I took the shrader valve out and tossed it.... mistake.... though it was a regular shrader valve, which I had loads of. after finding out a std valve wouldn't work... was digging in the trash until I found the old valve.
turned out main seal was not holding. twisted a bit harder and adapter held fine with old valve tip.
they should have the tiny valve separately.
as brad said... it's a special low spring tension shrader valve.
one of my snap-on adapters was not holding, so I took the shrader valve out and tossed it.... mistake.... though it was a regular shrader valve, which I had loads of. after finding out a std valve wouldn't work... was digging in the trash until I found the old valve.
turned out main seal was not holding. twisted a bit harder and adapter held fine with old valve tip.
I just emailed Snap-on to see if they would quote me a price for mailing me a shrader valve...or point me to where the closet Snap-on truck is. I did mention that it wasn't for a Snap-on compression tester. I'll see if they reply.
BTW Brad...didn't mean to hijack your thread...
Kevin
BTW Brad...didn't mean to hijack your thread...
Kevin
don't tell them it's not for a snap-on tool. why in the world would they want to support someone else's $40 gauge. vs snap-on's for $250
ask a shrader valve that fits an adapter from a two piece snapon gauge set. look at pictures posted above.
a tiny valve is customer service only. what you need to do is find who the snap-on dealer that does the route near your house.
you can call local garages nearby or snapon HQ.
ask a shrader valve that fits an adapter from a two piece snapon gauge set. look at pictures posted above.
a tiny valve is customer service only. what you need to do is find who the snap-on dealer that does the route near your house.
you can call local garages nearby or snapon HQ.
gatkeper1
ArboristSite Guru
Well it is Snap-On after all.
Actually i thought you wanted the complete set. Heres a link to the valve
http://buy1.snapon.com/catalog/sear...nsfr=true&search_type=Part&store=snapon-store
Thanks for the link. Hopefully the shipping won't scare me off...
. At least now I have a part number.Kevin
I just got the guage from Baileys. It's the middle of the work day so I don't have time for a full report right now. However, I did throw it on the 029 Super that was pulling 135-138 on my AutoZone guage. This guage from Baileys pulls 142-143 PSI. I'm liking it already, lol. I don't care if it's accurate, I just want it to read high:greenchainsaw:. I'm curious to see the difference in how they read pressurized by a compressor tank vs how the read on the same saw. BTW, there is a one-way valve about 1/2" up in the tip. It is not a removeable Schrader valve, but it does have the required one-way valve.
Brad,,,if she runs good,,idles good starts good,,run the hell outta it!!!! P.S. Amazing work you did on that,,I had to say again...So hard to believe thats the same saw!!!!
Motodeficient
ArboristSite Guru
I have never used a compression gauge before, but I want to buy one. If I buy one with the schrader valve for use in a small 2-stroke engine like a chainsaw, will the same gauge also work for larger 2-stroke engines like a dirtbike or snowmobile?
nmurph
ArboristSite.com Sponsor
brad,
did you ever evaluate the gauges to see which is more accurate?
did you ever evaluate the gauges to see which is more accurate?
Evanrude
Addicted to ArboristSite
To ease everyone on the accuracy of the Lisle, mine is right on with two separate air gauges/compressors. Maybe Brad got one that was produced on Friday.
Thanks for the link. Hopefully the shipping won't scare me off...
Kevin
Thought I'd bump this thread. This might help someone for reference. I used the link from gatkeeper1 and ordered a valve ($2.17 to my door, UPS). It fits in my non-SnapOn tester and works just fine.
Kevin
I have not had a chance to do any more definitive testing. I did use both guages on another saw and got within a couple pounds of each other. I give a thumbs up to the Baileys guage!
the only way to know for sure which gauge is accurate is to compare against a calibration standards gauge.
since most folks don't have one of those and will not pay the costs to send out for calibration.
the next best thing is to compare against the highest quality gauges commercially available. which is Drager and Snap-on. both of those are calibrated at the factory. yes there is a reason the best costs more.
since most folks don't have one of those and will not pay the costs to send out for calibration.
the next best thing is to compare against the highest quality gauges commercially available. which is Drager and Snap-on. both of those are calibrated at the factory. yes there is a reason the best costs more.
