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leak down test
Posted:
Thu Oct 24, 2019 8:49 pmby HxPaul
How long should you leave the scooter engine inflated using a leak down kit.The top end of my engine has been inflated for at least 3 hours and it hasn't gone down yet.
Re: leak down test
Posted:
Thu Oct 24, 2019 9:33 pmby Norrie Bodge
HxPaul wrote:How long should you leave the scooter engine inflated using a leak down kit.The top end of my engine has been inflated for at least 3 hours and it hasn't gone down yet.
I thinks it’s safe to say you’ve done a good build m8
Re: leak down test
Posted:
Fri Oct 25, 2019 7:31 amby watty-rugby
Re: leak down test
Posted:
Fri Oct 25, 2019 8:56 amby coaster
3 hours is quite amazing, did you use greases in the bore
Re: leak down test
Posted:
Fri Oct 25, 2019 10:41 amby CHRIS in MARGATE
And breathe !
Re: leak down test
Posted:
Fri Oct 25, 2019 6:03 pmby HxPaul
HxPaul wrote:How long should you leave the scooter engine inflated using a leak down kit............
4 replies and not 1 that answers the question
Re: leak down test
Posted:
Fri Oct 25, 2019 7:06 pmby Bogie
i leave mine under pressure for 5 mins or so , if no massive drop im a happy bunny ... so 3 hrs i would say your defo good to go
Re: leak down test
Posted:
Fri Oct 25, 2019 7:09 pmby nastro azzurro
2 minutes is enough for testing.
I test gas installations and dependant on volume 2 minute test is adequate for most average installations ; and they have a much larger volume than a Lambretta motor!
Allow a minute for stabilisation then a test of two minutes.
Try to ensure a reasonably stable temperature when testing as this will influence the test.
Re: leak down test
Posted:
Fri Oct 25, 2019 7:15 pmby nastro azzurro
As an aside, if your test at 3 hours hasn’t dropped I’d make sure you are actually testing the motor and not just testing the test equipment!
Re: leak down test
Posted:
Fri Oct 25, 2019 10:07 pmby bookertmgs1
Leave it pressurised - have a cup of tea maybe a tidy up. If it’s not dropped then your are fine.
I also tend to do a check day after too - not sure why - I just do !
Re: leak down test
Posted:
Sat Oct 26, 2019 9:30 amby HxPaul
Thanks for the replies.
