| Author |
Message |
|
tyler_johnson
MMT 1000 Club
Joined: Mon Jan 21, 2013 6:22 pm
Posts: 1094
Location: El Dorado-ish, AR
|
 Leak down test results so after getting my OTC tester in today, I could wait.
followed directions and the eneed up with the following:
Cylinder 1: 17%
Cylinder 2: 5%
With Cylinder 1 the leak are equal parts through intake and exhaust.
With cylinder 2, I'm pretty sure all 5% is exhaust valve.
Any solid opinions on leave alone or not is appreciated.
Sent from my SM-G900V using Tapatalk
_________________
'13 GTR35 Stage 2 w/ EVT Exhaust, 1750 Voodoo Custom by DFOU!!
|
| Tue Oct 18, 2016 7:54 pm |
|
|
|
cupped up
MMT 1000 Club
Joined: Tue Jun 05, 2012 7:25 pm
Posts: 4205
Location: St. Amant, LA
|
Re: Leak down test results Performance tailing off some?
|
| Tue Oct 18, 2016 8:24 pm |
|
|
|
tyler_johnson
MMT 1000 Club
Joined: Mon Jan 21, 2013 6:22 pm
Posts: 1094
Location: El Dorado-ish, AR
|
Re: Leak down test results not bad just wanted to see, give some sorta baseline, I have lost about 2-3 mph overall just by myself, with a load only a tad longer holeshot.
Sent from my SM-G900V using Tapatalk
_________________
'13 GTR35 Stage 2 w/ EVT Exhaust, 1750 Voodoo Custom by DFOU!!
|
| Tue Oct 18, 2016 8:32 pm |
|
|
|
cupped up
MMT 1000 Club
Joined: Tue Jun 05, 2012 7:25 pm
Posts: 4205
Location: St. Amant, LA
|
Re: Leak down test results You can yank the heads off and have a valve job done, just remember that eventually they will start to leak again. So in my opinion it's a "bang for your buck" thing...once you're dissatisfied with performance have them taken care of.
Unless it starts to show symptoms of other problems too.
|
| Tue Oct 18, 2016 8:42 pm |
|
|
|
tyler_johnson
MMT 1000 Club
Joined: Mon Jan 21, 2013 6:22 pm
Posts: 1094
Location: El Dorado-ish, AR
|
Re: Leak down test results well a few mph in the 2.5 yrs after pulling it out of Daniels yard in Prairieville, I'm still happy, just wanted to know where it's at
Sent from my SM-G900V using Tapatalk
_________________
'13 GTR35 Stage 2 w/ EVT Exhaust, 1750 Voodoo Custom by DFOU!!
|
| Tue Oct 18, 2016 8:45 pm |
|
|
|
Muddslanger
MMT Pro Member
Joined: Sun Jan 11, 2015 2:13 pm
Posts: 149
|
Re: Leak down test results I had to order one as well, should arrive tomorrow. I've never used one, I figured it should be pretty easy to use
Sent from my iPhone using Tapatalk
_________________
Stock 35gdsd skidding 1654gd
|
| Tue Oct 18, 2016 9:10 pm |
|
|
|
tyler_johnson
MMT 1000 Club
Joined: Mon Jan 21, 2013 6:22 pm
Posts: 1094
Location: El Dorado-ish, AR
|
Re: Leak down test results that hardest part with the motor completely together is getting the piston TDC
Sent from my SM-G900V using Tapatalk
_________________
'13 GTR35 Stage 2 w/ EVT Exhaust, 1750 Voodoo Custom by DFOU!!
|
| Tue Oct 18, 2016 9:12 pm |
|
|
|
Muddslanger
MMT Pro Member
Joined: Sun Jan 11, 2015 2:13 pm
Posts: 149
|
Re: Leak down test results Did the piston try to stroke when you applied the pressure?
Sent from my iPhone using Tapatalk
_________________
Stock 35gdsd skidding 1654gd
|
| Tue Oct 18, 2016 9:14 pm |
|
|
|
tyler_johnson
MMT 1000 Club
Joined: Mon Jan 21, 2013 6:22 pm
Posts: 1094
Location: El Dorado-ish, AR
|
Re: Leak down test results yup lol
Sent from my SM-G900V using Tapatalk
_________________
'13 GTR35 Stage 2 w/ EVT Exhaust, 1750 Voodoo Custom by DFOU!!
|
| Tue Oct 18, 2016 9:24 pm |
|
|
|
Will C
MMT Sponsor
Joined: Fri Jan 10, 2014 1:16 pm
Posts: 2107
Location: Gladewater TX
|
Re: Leak down test results I think yours might be reading a bit low. When I get a a tight bb Briggs .with no air leaking from valves I'm still in the 10-14 range. If I can hear a little air from valves it's usually north of 20%. My tester is snap on and I know that doesn't mean shit. This one has earned my trust. Maybe someone else will say what there getting
|
| Tue Oct 18, 2016 10:03 pm |
|
|
|
Muddslanger
MMT Pro Member
Joined: Sun Jan 11, 2015 2:13 pm
Posts: 149
|
Re: Leak down test results Hey Tyler, probably a stupid question but when you did the test did you just take valve covers off?
Sent from my iPhone using Tapatalk
_________________
Stock 35gdsd skidding 1654gd
|
| Wed Oct 19, 2016 11:41 am |
|
|
|
Muddslanger
MMT Pro Member
Joined: Sun Jan 11, 2015 2:13 pm
Posts: 149
|
Re: Leak down test results Or do you just listen through the exhaust carb and case?
Sent from my iPhone using Tapatalk
_________________
Stock 35gdsd skidding 1654gd
|
| Wed Oct 19, 2016 11:46 am |
|
|
|
tyler_johnson
MMT 1000 Club
Joined: Mon Jan 21, 2013 6:22 pm
Posts: 1094
Location: El Dorado-ish, AR
|
Re: Leak down test results I left them on
Sent from my SM-G900V using Tapatalk
_________________
'13 GTR35 Stage 2 w/ EVT Exhaust, 1750 Voodoo Custom by DFOU!!
|
| Wed Oct 19, 2016 12:31 pm |
|
|
|
Will
MMT Elite Member
Joined: Fri Jul 08, 2011 1:54 pm
Posts: 8133
|
Re: Leak down test results What condition is your prop in? Doesn't take much wear on the tips to loose a couple mph on top.
_________________
Before the internet, the majority of the village idiots stayed in their villages.
|
| Thu Oct 20, 2016 5:21 am |
|
|
|
