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Author Topic:   Leak down tester
sideways
Dirt Forum Champ
Total posts: 715
posted December 25, 2002 09:30 PM  
Hey anyone got any plans on building a homemade leak down tester?Come on give it up fellas lol.

awkwardjeff
Dirt Forum Champ
Total posts: 562
posted December 26, 2002 09:28 AM  
why would you or anyonce consider building a leak down tester??? After you buy or find 2 regulators and a fitting that threads into the spadk plug hole.........plus a ball valve.........

Speedway motors sells 2 different testers...
the first one is a dual gauge....it shows the pressure into the tester and the pressure in the cylinder.......

The other tester shows cylinder pressure only.....or the amount of pressure being held at the exit of the hose.....some people do use them more than just in the cylinder. But you don't have the pressure of the air going into the gauge. So you must look at the compressor to see the differance...

the dual gauge is 913-81121......$64.95
the single gauge is 913-81101....$54.95

For the extra $10 I like the dual gauge.

It would NOT be hard to build one of these, it would require a regulator and fittings for the single gauge tester......
Or 2 regulators and fittings for the dual gauge tester.........

sideways
Dirt Forum Champ
Total posts: 715
posted December 26, 2002 10:15 AM  
Well it was just a thought never seen one up close and I have(like most racers)a supply of misc. junk.So that was the reason for the post.And just the sheer joy of building tools from parts ya got laying around.If in fact all the parts are around.So that is the reason for the post.I like building my own tools most of the time,it is cheaper to buy but once in a while you can get by cheaper building it yourself.And the feeling of satisfaction of doing it.To each his/her own.But thanks for your reply I didnt know they were that inexpensive.I enjoy building things on my own so asper the reason for your original question.Happy Holidays.

awkwardjeff
Dirt Forum Champ
Total posts: 562
posted December 27, 2002 01:03 AM  
Sideways, I completely understand why people build things.......I build my own cars, motors, gears, and most anything else I need.......The leak down tester is just one of those things that is cheaper to buy. I meant NO dis-respect by asking why.

If you had 2 air regulators sitting around then you could enjoy building a leak tester...but if not.....it's cheaper to order.

If you are bored and looking for something to build just for the enjoyment can I tell you a few things I need built......LOL
You could just build them and pay me for letting you have sooooo much fun....LOL

I lost my axle puller last year, you could start with that.........better build me 2 so I have one to barrow out again.

I would also like you to enjoy building me a jack, or more like a car lift.....it would be L shaped with a cross piece welded to the bottom of the L........the heavy corner of the car is about 800 pounds....so a ratio of 7 to 1 should work great......it should also trip over center to lock in place. This works off the bottom rail when the tires have air....but when you come in with a flat and you need to lift the car to fit the jack under you use this first off the bumpers...this gets the car up enough to fit a regular jack under the frame to change the tire in a hurry.........this is what you need so 2 guys can change the tire fast. Without the help of another crew standing around looking stupid at you.......LOL

I'm sure you have a few other nice little trick pieces of your own that you already built that I could use and enjoy.......


sixwillwin
Dirt Freak

Total posts: 493
posted December 27, 2002 09:12 AM  
hey, I need an axle puller also!! In fact, a leakdown tester would be nice too!!

sideways
Dirt Forum Champ
Total posts: 715
posted December 27, 2002 07:59 PM  
I appreciate it fellas but I am covered up as is...........lol.Now if ya want to talk about my "engineering"fee well then I have lots o' time.lol

go4win
Dirt Full Roller

Total posts: 61
posted December 27, 2002 09:54 PM  
My Craftsman compression gauge has a connector that is identical to my air
hoses. I just made up a short hose and
plug it in . It doesn't give you the actual
leak down percentage , but you can listen
for where the air is going and determine
where to start the repair.

awkwardjeff
Dirt Forum Champ
Total posts: 562
posted December 28, 2002 10:38 AM  
quote:
Originally posted by awkwardjeff:
When I was poorer....if that's a word...I couldn't afford a leak down tester either. I took a old spark plug and brassed a quick coupler to the threaded part of the plug after knocking the plug apart.

You can build a fitting to hook a air hose to the cylinder for almost nothing.....this does work great for putting air pressure into the cylinder and checking valve leak, remove the radiator cap and look for air bubbles and you will know if the head gasket is leaking or head might be cracked....ect.


For a axle puller I just take a piece of 1 3/4 tube about 4 inches long......weld a washer on one end....then weld a piece of 1/2 all thread rod and a 3/8 fine thread bolt for solid axles or 3/4 fine thread bolt for the gun-drilled axles..............
to use this tool, insert the all thread rod into the tube pulling it out the washer...thread the 3/8 or 3/4 inch end into you axle.......push the tube end tight against the hub......put a 1/2 nut on the threaded rod and tighten .......as it tightens it will pull the alxe out.......VERY SLICK.....NO PULLING, BANGING, CUSSING OR CURSING....... TOTAL COST TO BUILD IS ABOUT 2 BUCKS AND 20 minutes

The things we all did to save a buck before......because we had too........Now we do it because we ENJOY building that stuff...



go4win
Dirt Full Roller

Total posts: 61
posted December 29, 2002 11:22 AM  
Poorer is a word ! When you look it up
in the dictionary, you see a picture of me!
LOL

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