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bbb
MMT 1000 Club
Joined: Wed Sep 02, 2009 2:54 pm
Posts: 1554
Location: SW Georgia
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 Adjusting valves one at a time? Was having the slow starter issue so knew my valves were off.
But I could not get the 1/4" past tdc to work for me. I used a measuring tool and everything, but the intake side was always too tight, and there were no more threads to back out the torx bolt any more.
Saw the utube video of the small engine shop doing one valve at a time. So I just turned the prop to get each valve in the right position and adjusted each valve to .006.
Started up a lot easier and ran fine so I guess I'm good?
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19x54 Seminole Extreme with a 35hp CDI GDSD. Mikuni. Marsh Mellow. Heads. Cam.
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| Thu Mar 08, 2012 7:31 am |
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fowl habbit
MMT 1000 Club
Joined: Sat Jan 16, 2010 1:52 pm
Posts: 1130
Location: THE ONE AND ONLY BUFFALO COUNTY
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Re: Adjusting valves one at a time? I set mine a little tighter being a modded motor. I go between .004 and .005. If I remember correctly a tighter valve will be better on the low end.
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| Thu Mar 08, 2012 7:52 am |
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dguidry
MMT Super Elite Member
Joined: Tue Jun 29, 2010 1:20 pm
Posts: 11166
Location: Cecilia, LA
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Re: Adjusting valves one at a time?
_________________
Formerly:1648 Homemade Cypress Crawfish Skiff GTR23 Performance Cam and Heads; 17x46 Gator Tail with 35GTR and Hoyt's cam;s Currently: 17x48 Gator Tail with XD40 EFI.
“Wisdom is not just expertise. It is knowing how much of various areas of expertise you need to know in order to make the decisions that the world needs and that you want to do,” Columbia University President Lee Bollinger.
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| Thu Mar 08, 2012 9:53 am |
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bbb
MMT 1000 Club
Joined: Wed Sep 02, 2009 2:54 pm
Posts: 1554
Location: SW Georgia
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Re: Adjusting valves one at a time?
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19x54 Seminole Extreme with a 35hp CDI GDSD. Mikuni. Marsh Mellow. Heads. Cam.
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| Thu Mar 08, 2012 10:40 am |
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bayouboy
MMT Elite Member
Joined: Tue Jan 13, 2009 6:08 pm
Posts: 5376
Location: Venice, La
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Re: Adjusting valves one at a time?
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| Thu Mar 08, 2012 11:05 am |
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bayouboy
MMT Elite Member
Joined: Tue Jan 13, 2009 6:08 pm
Posts: 5376
Location: Venice, La
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Re: Adjusting valves one at a time? I for one frown upon sticking anything metal into the cylinder. I use bamboo chop sticks. They work great and there free with the dinner. 
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| Thu Mar 08, 2012 11:08 am |
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dguidry
MMT Super Elite Member
Joined: Tue Jun 29, 2010 1:20 pm
Posts: 11166
Location: Cecilia, LA
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Re: Adjusting valves one at a time? Here's what will happen if you use a pencil or wood: viewtopic.php?f=3&t=26980
_________________
Formerly:1648 Homemade Cypress Crawfish Skiff GTR23 Performance Cam and Heads; 17x46 Gator Tail with 35GTR and Hoyt's cam;s Currently: 17x48 Gator Tail with XD40 EFI.
“Wisdom is not just expertise. It is knowing how much of various areas of expertise you need to know in order to make the decisions that the world needs and that you want to do,” Columbia University President Lee Bollinger.
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| Thu Mar 08, 2012 12:22 pm |
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bbb
MMT 1000 Club
Joined: Wed Sep 02, 2009 2:54 pm
Posts: 1554
Location: SW Georgia
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Re: Adjusting valves one at a time?
_________________
19x54 Seminole Extreme with a 35hp CDI GDSD. Mikuni. Marsh Mellow. Heads. Cam.
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| Thu Mar 08, 2012 2:05 pm |
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dguidry
MMT Super Elite Member
Joined: Tue Jun 29, 2010 1:20 pm
Posts: 11166
Location: Cecilia, LA
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Re: Adjusting valves one at a time?
_________________
Formerly:1648 Homemade Cypress Crawfish Skiff GTR23 Performance Cam and Heads; 17x46 Gator Tail with 35GTR and Hoyt's cam;s Currently: 17x48 Gator Tail with XD40 EFI.
“Wisdom is not just expertise. It is knowing how much of various areas of expertise you need to know in order to make the decisions that the world needs and that you want to do,” Columbia University President Lee Bollinger.
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| Thu Mar 08, 2012 2:32 pm |
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bbb
MMT 1000 Club
Joined: Wed Sep 02, 2009 2:54 pm
Posts: 1554
Location: SW Georgia
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Re: Adjusting valves one at a time? Well I thought I did, but maybe I was trying to set it 1/4" past the exhaust stroke, since the piston is at tdc on the exhaust stroke too.  This is the video I used to set the valves. Am I ok this way? [youtube]http://www.youtube.com/watch?v=hGkn0jR9RJM[/youtube]
_________________
19x54 Seminole Extreme with a 35hp CDI GDSD. Mikuni. Marsh Mellow. Heads. Cam.
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| Thu Mar 08, 2012 4:00 pm |
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BoatDR
MMT Sponsor
Joined: Tue May 24, 2011 6:43 am
Posts: 1604
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Re: Adjusting valves one at a time?
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| Thu Mar 08, 2012 5:04 pm |
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dguidry
MMT Super Elite Member
Joined: Tue Jun 29, 2010 1:20 pm
Posts: 11166
Location: Cecilia, LA
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Re: Adjusting valves one at a time? I remember reading an article about the pros and cons of this method versus the TDC method but I don't thing it made much difference which way you did it. I think the theory for some preferring the TDC method was there was less of a chance of getting a lash clearance variance between the two valves.
_________________
Formerly:1648 Homemade Cypress Crawfish Skiff GTR23 Performance Cam and Heads; 17x46 Gator Tail with 35GTR and Hoyt's cam;s Currently: 17x48 Gator Tail with XD40 EFI.
“Wisdom is not just expertise. It is knowing how much of various areas of expertise you need to know in order to make the decisions that the world needs and that you want to do,” Columbia University President Lee Bollinger.
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| Thu Mar 08, 2012 6:15 pm |
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dguidry
MMT Super Elite Member
Joined: Tue Jun 29, 2010 1:20 pm
Posts: 11166
Location: Cecilia, LA
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Re: Adjusting valves one at a time?
_________________
Formerly:1648 Homemade Cypress Crawfish Skiff GTR23 Performance Cam and Heads; 17x46 Gator Tail with 35GTR and Hoyt's cam;s Currently: 17x48 Gator Tail with XD40 EFI.
“Wisdom is not just expertise. It is knowing how much of various areas of expertise you need to know in order to make the decisions that the world needs and that you want to do,” Columbia University President Lee Bollinger.
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| Thu Mar 08, 2012 7:09 pm |
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bayouboy
MMT Elite Member
Joined: Tue Jan 13, 2009 6:08 pm
Posts: 5376
Location: Venice, La
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Re: Adjusting valves one at a time?
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| Thu Mar 08, 2012 8:07 pm |
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bayouboy
MMT Elite Member
Joined: Tue Jan 13, 2009 6:08 pm
Posts: 5376
Location: Venice, La
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Re: Adjusting valves one at a time?
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| Thu Mar 08, 2012 8:08 pm |
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dgalmo
MMT Pro Member
Joined: Sat May 23, 2009 8:39 pm
Posts: 223
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Re: Adjusting valves one at a time? I found this thread just in time to check my valve lash on my 1yo gtr. I tried all 3 methods above. First off, the valves were all about .008 or .009 using the video method. They were all about .007 using 1/4" TDC method and 50hp's method. I set them at .005 using 1/4" TDC method and checked them with 50hp's method, all .005 maybe 1 .006. Checked them using the video, all were .007 except 1 intake was .005/.006.
Everything runs fine, seems to idle 50-75 rpm higher and smoother, but that may be the imagination.
What I did realize is if you set your valves to .004 or .005 using the video, they're likely .002 or .003 using the other two methods. That may be fine, but I'm not a mechanic.
Thanks MMT
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| Fri Oct 19, 2012 9:29 pm |
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deadbird8
MMT 1000 Club
Joined: Wed Feb 04, 2009 7:50 pm
Posts: 3833
Location: Old East Dallas, Texas
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Re: Adjusting valves one at a time?
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Excel 1851F4 w/ MB35HD+R CDI with a little bit of this and little bit of that
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| Sat Oct 20, 2012 3:40 am |
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mizzippi jb
MMT Elite Member
Joined: Wed Sep 21, 2011 2:53 pm
Posts: 5077
Location: The duck Mecca called Ga!
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Re: Adjusting valves one at a time?
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HOTSAUCE170 wrote:
I've never gone to Seminole for the amenities/luxury the two reasons I go down there are to kill shit and get fucked up with like minded individuals aka OG'S. If you want to swirl wine and stay in a room where politics and investment diversity are discussed (with no roaches) lake lanier is near Atlanta. If you wanna have an awesome time and maybe stay in a room where children were conceived on one side and someone got stabbed over an 8-ball on the other come on down I got a can of raid. 
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| Sat Oct 20, 2012 9:09 am |
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mizzippi jb
MMT Elite Member
Joined: Wed Sep 21, 2011 2:53 pm
Posts: 5077
Location: The duck Mecca called Ga!
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Re: Adjusting valves one at a time? Never mind, found you video explaining it in YouTube.
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HOTSAUCE170 wrote:
I've never gone to Seminole for the amenities/luxury the two reasons I go down there are to kill shit and get fucked up with like minded individuals aka OG'S. If you want to swirl wine and stay in a room where politics and investment diversity are discussed (with no roaches) lake lanier is near Atlanta. If you wanna have an awesome time and maybe stay in a room where children were conceived on one side and someone got stabbed over an 8-ball on the other come on down I got a can of raid.
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| Sat Oct 20, 2012 9:15 am |
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