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schmitt
MMT 1000 Club
Joined: Fri Jun 25, 2010 3:33 pm Posts: 1177 Location: WI
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 Docking heads
Does anyone know how much, or what most are docking the head's on a 25hp kohler? "hydrolic lifter's" Thanks
_________________ 1848 DeadFowl pushed by a Stage 4 Delta powered MB HDR (JBP dusting)
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Wed Aug 04, 2010 7:59 am |
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coondik
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 Re: Docking heads
i wouldn't go any more den .030 on de decking and don't forget to bleed down u'r lifters!
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Wed Aug 04, 2010 8:10 am |
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schmitt
MMT 1000 Club
Joined: Fri Jun 25, 2010 3:33 pm Posts: 1177 Location: WI
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 Re: Docking heads
what do you do to bleed down the lifter's? Just put it at tdc and touque the rockers to 100 inch pound's?
30 huh, arnt most going 60? Or only 30 because of the hydrolic lifter's?
Thanks
_________________ 1848 DeadFowl pushed by a Stage 4 Delta powered MB HDR (JBP dusting)
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Wed Aug 04, 2010 9:00 am |
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bjg
MMT F.E.
Joined: Thu Jan 15, 2009 7:34 pm Posts: 882 Location: Ahead of you, with a rubber band turning my prop!!
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 Re: Docking heads
I give you permission to go .120 on them heads................................ Just jokin, .030 is a good deal.
_________________ BUCK OFAMA
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Sun Aug 08, 2010 5:25 pm |
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oltcudown
MMT Member
Joined: Wed Dec 23, 2009 7:50 am Posts: 14
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 Re: Docking heads
To bleed the lifters you apply pressure to the plunger of the lifter until the reservoir is empty. Or better yet just buy new lifters. When I did my heads I had 2 lifters stuck and that was at 47 hours. The kohler manual says you don't have to prime the lifters before install, but be prepared for some crazy tapping for first few minutes after rebuild.
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Mon Aug 09, 2010 1:26 pm |
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cb5331
MMT Super Elite Member
Joined: Fri Dec 18, 2009 8:10 pm Posts: 16915 Location: Rowlett, TX
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 Re: Docking heads
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Mon Aug 09, 2010 1:36 pm |
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oltcudown
MMT Member
Joined: Wed Dec 23, 2009 7:50 am Posts: 14
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 Re: Docking heads
Also, I only shaved my heads down .020, added ss valves, ported, polished, and shimmed valves up .060. Now my compression is 184/185. That is as high as I want to go, cause I want this thing to last.
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Mon Aug 09, 2010 1:39 pm |
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cb5331
MMT Super Elite Member
Joined: Fri Dec 18, 2009 8:10 pm Posts: 16915 Location: Rowlett, TX
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 Re: Docking heads
The stock 30 heads took my motor to 185 comp. Was at 150 before.
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Mon Aug 09, 2010 1:42 pm |
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oltcudown
MMT Member
Joined: Wed Dec 23, 2009 7:50 am Posts: 14
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 Re: Docking heads
Yea I would of went that route, but I only paid $160 for all the headwork.
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Mon Aug 09, 2010 1:45 pm |
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cb5331
MMT Super Elite Member
Joined: Fri Dec 18, 2009 8:10 pm Posts: 16915 Location: Rowlett, TX
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 Re: Docking heads
Yeah, thats a good deal. You can find the 30 heads on ebay with new valves and springs for about 180. They are a lil over 200 just for the heads if you go through a kohler dealer.
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Mon Aug 09, 2010 1:47 pm |
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schmitt
MMT 1000 Club
Joined: Fri Jun 25, 2010 3:33 pm Posts: 1177 Location: WI
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 Re: Docking heads
_________________ 1848 DeadFowl pushed by a Stage 4 Delta powered MB HDR (JBP dusting)
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Mon Aug 09, 2010 2:53 pm |
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schmitt
MMT 1000 Club
Joined: Fri Jun 25, 2010 3:33 pm Posts: 1177 Location: WI
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 Re: Docking heads
_________________ 1848 DeadFowl pushed by a Stage 4 Delta powered MB HDR (JBP dusting)
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Mon Aug 09, 2010 3:01 pm |
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