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Put together a SIMPLE air leak down tester for under $30
Posted by
Dimsi
on 26 Nov, 2013 19:29
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Put this together to test the rebuild and thought I'd share. Haven't gotten to the point to actually use it but it should be perfect. Will update with results.
Fuel Pump and Vacuum Tester - Harbor Freight - $15
Blood Pressure Monitor (the one with a manual pump) - Amazon - $11
1" PVC Cap for intake - Home Depot - <$1
1.5" Rubber "QWIK CAP" for exhaust flange - Home Depot - <$2
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#1 Reply
Posted by
GrkGuy
on 26 Nov, 2013 20:47
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looks pretty nice
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#2 Reply
Posted by
Gillio
on 27 Nov, 2013 06:14
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I was just looking at a MityVac yesterday for a new leak down. But now I'm thinking i might save a few dollars and build one. Thanks for the heads up on you set up.
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#3 Reply
Posted by
LT250RWV
on 27 Nov, 2013 07:22
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I have about 33 $ in the one I built. Works well and really happy with it.
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#4 Reply
Posted by
Dimsi
on 06 Dec, 2013 01:34
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Reporting back, the tester worked great. Found a couple of leaks and took care of them.
There is a single bolt on the side of the case that leads into the crank case. It doesn't hold anything, it just plugs the hole... Anyone know what it's for??
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#5 Reply
Posted by
Buckeye513
on 06 Dec, 2013 04:53
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A picture is worth a thousand words!!
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#6 Reply
Posted by
Dimsi
on 06 Dec, 2013 05:43
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This guy...
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#7 Reply
Posted by
Gillio
on 06 Dec, 2013 06:51
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Thats where you drain the power valve chamber of oil and fuel build up.
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How often do you guys let that drain out?
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#9 Reply
Posted by
Gillio
on 06 Dec, 2013 09:25
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I only drain mine when I run outta oil for premix
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#10 Reply
Posted by
Gillio
on 06 Dec, 2013 09:27
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Actually there shouldnt be much oil/ fuel mix in there. If there is, Your motor might be over fueled or a clutch side seal issue.... Im sure there's more to it if thats the case.
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#11 Reply
Posted by
Dimsi
on 06 Dec, 2013 23:45
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Interesting, good to know.
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#12 Reply
Posted by
Rem28ga
on 13 Dec, 2013 15:58
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So I am getting the pieces together to make my own tester. I had the vacuum/pressure gauge in the tool box, the amazon blood pressure gauge with pump is $9.89 with free shipping so it is on the way here. I am looking at the fittings, did you just pick up a brass T and a fitting that will thread into the spark plug hole? Do you know what size that is off hand? I appreciate your insight to post this. It will be a very useful tool as I am pretty sure I have a leak in my '87 zilla , am currently putting my '91 lt250r back together, and needing one to chase the demons on a 2003 lt50! Thanks again.
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#13 Reply
Posted by
GrkGuy
on 13 Dec, 2013 16:11
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i am gonna go to lowes this weekend and try to see how cheap, but not so cheap its junk. i can make them for.
i got a nice one now thats built from copper pipe, but i might try to build a few and sale them for the shipping cost. or maybe build a few to
loan out, you pay the shipping both ways and you can use it anytime you want. i might even be able to pay
shipping to you, well wifes work will pay for it. lol but just as long as i get it back in a week or 2. could save guys
a few bucks that just dont have the time or cash to spend on something they really dont need. but even tho you
own a 2 stroke you really do need one.
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I will buy one from ya John!
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#15 Reply
Posted by
GrkGuy
on 13 Dec, 2013 17:34
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do you want a copper pipe one or pvc, i guess that will be the 2 you have to chose from.
guess i will price both of them out, i looked on line tho and did not see any low psi gauges at lowes.
i was looking for 0-15 lbs.
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#16 Reply
Posted by
Dimsi
on 14 Dec, 2013 02:36
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Rem, I bot a set of plastic T's from autozone, and the brass fitting for the spark plug hole came with the pressure tester kit. I will check the thread and diameter sizes when I get home and post them on here, pretty sure you can find it cheap on ebay.
Grk, I got my gauge from Harbor Freight and it's 0-10psi. If you don't have it in your area you could order it online, but I'm not sure how much they charge for shipping.
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#17 Reply
Posted by
Rem28ga
on 14 Dec, 2013 08:50
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That would be great! I appreciate it.
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#18 Reply
Posted by
GrkGuy
on 14 Dec, 2013 08:53
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how much was gauge up there, i got one about 45 min away, i am gonna go go up there today, i need to get some tire spoons from there.
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#19 Reply
Posted by
Dimsi
on 14 Dec, 2013 11:38
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#20 Reply
Posted by
GrkGuy
on 14 Dec, 2013 16:10
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man i had no luck today, harbor freight employees suck, they dont know anything... i went to home lowes to, and pep boys.
only parts i got was the plugs, i am gonna try and go to a industrial plumbing store monday, making it out of copper pipe.
plugs were under 4 bucks. lowes had a pretty nice one.
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#21 Reply
Posted by
Chuckie25
on 14 Dec, 2013 17:46
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I'd be down for to buy a copper one from you,,, but i would need a different exhaust cap since my pipe has a solid flange
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#22 Reply
Posted by
LT250RWV
on 15 Dec, 2013 13:56
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Just get rubber freeze plugs.
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#23 Reply
Posted by
GrkGuy
on 15 Dec, 2013 16:45
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i am only going to make the leak tester, you will need to find the plugs to seal your motor.
i am going to hit the plumbing store tomorrow.
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#24 Reply
Posted by
GrkGuy
on 15 Dec, 2013 18:35
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ok i got the gauges and the reducer, now i need help.
i need a 3/4'' female sleeve with threads on the inside at 1/4''
then i can soder the sleeve in it and thread the psi gauge in that.
any idea what that part is called. guess it would be just like heli coil
but i am sure there is a name for it. i just dont know the name. so i need help.
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