Home made leak down tester

[Toolanddiemaker]

Just wanted to share some pics of my homemade leak tester. After doing some researching I decided to takle this proj and machine out some block off plates I also bought a sheet of .125 rubber gasket material from Ebay. I ended up using the jet pump leak tester I put together with some t fittings linked to the intake plates that I drilled and taped for 1/4 in npt barbes fairly decent setup for a first timer ,I think! anyway pumped up the shraider valve with a hand pump and it held around 8 to 10 psi for around an hour then dropped and held around 6 I sprayed soapy solution on everything and I couldn't find any leaks. I will check it in a few hours to see were it's at. I also tested the rv cav and it held 10 psi indefinetly.The pic shows 0 psi on the gauge but that was before I started the test.Keeping my fingers crossed this was my first rebuild so im expecting a learning curve but I hope I don't need to rip it all apart again! Sorry for the long post thanks for reading!

Sent from my SGH-T769 using Tapatalk 2

 

[Matt Braley]

Fantastic work. That's an engine I'd take a solo trip on.

 

[Toolanddiemaker]

Fantastic work. That's an engine I'd take a solo trip on.

Thanks! :thumbsup:

 

[Toolanddiemaker]

Well I just checked the gauge and it leaked all the way down so I'm a little worried.it only held for a few hours not sure if it needs to hold indefinitely but I've read some threads that say it does,but I also read others that stated it only needs to hold a certain psi for a period of time not sure what think about that one. Oh well back to researching!:facepalm:

 

[racerxxx]

Nice job T&D. Manual states 3 minutes to hold 5 PSI. The longer the better. Time to wrap it up, you far surpassed the required time.

 

[Toolanddiemaker]

Nice job T&D. Manual states 3 minutes to hold 5 PSI. The longer the better. Time to wrap it up, you far surpassed the required time.

Awesome just what I wanted to hear thanks! I looked through my manual and I couldn't find any info on it so I was pretty much winging the test from threads I read.

 

[Guest_User]

install the spark plugs and tighten to spec.

Good job tho!!!:thumbsup:

 

[Toolanddiemaker]

install the spark plugs and tighten to spec.

Good job tho!!!:thumbsup:

Thanks! Just got done mounting almost all they acesories, should be ready to drop her in this weekend one more engine to go then it's breaking in and testing time on the lake! Man I can't wait till summer!!:cheers:

 

[Sportster-2001-951C-Stock]

I wouldn't exceed the 5psi factory leak test pressure spec by much, too much possibility of blowing out the seals.

 

[Toolanddiemaker]

I wouldn't exceed the 5psi factory leak test pressure spec by much, too much possibility of blowing out the seals.

Yea I don't realize that until I made this thread and was told it was 5psi. I will defiently watch out for that on the second engine Thanks!