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03-28-2020, 04:16 PM
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#1
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Guru
City: Edgewater, MD
Vessel Name: Catalina Jack
Vessel Model: Defever 44
Join Date: Nov 2011
Posts: 3,585
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Ford Lehman 120 Valve Identification
I am adjusting the valves on my two FL120s. Unlike the FL135 which has the same valve clearance for both the intake and exhaust valves, the FL120 calls for .015 for exhaust and .012 for the intake valves. Unfortunately, the manual does not show which of the twelve valves are exhaust vs. intake. I think I have it correct by inference based on the adjusting sequence in the manual but I want to be certain. It would be helpful to me and others to know, starting from the front, the first valve, to know in succession to the rear which are intake and which are exhaust for certain. Based on my inference, it is not an intake/ exhaust, intake/exhaust progression.
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03-28-2020, 06:19 PM
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#2
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Guru
City: Gulf Islands, BC Canada
Vessel Name: Sea Sanctuary
Vessel Model: Bayliner 4588
Join Date: Jul 2019
Posts: 5,017
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Valve adjustment.pdf
please read twice as 4 & 6 cylinder are in same sentence
__________________
SteveK
You only need one working engine. That is why I have two.
Sea Sanctuary-new to me 1992 Bayliner 4588
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03-28-2020, 07:13 PM
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#3
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Guru
City: Edgewater, MD
Vessel Name: Catalina Jack
Vessel Model: Defever 44
Join Date: Nov 2011
Posts: 3,585
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Soo-Valley, thank you but attachment did not work.
Quote:
Originally Posted by Soo-Valley
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03-28-2020, 07:16 PM
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#4
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Guru
City: Gulf Islands, BC Canada
Vessel Name: Sea Sanctuary
Vessel Model: Bayliner 4588
Join Date: Jul 2019
Posts: 5,017
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wrong info or you cannot open it.
Intake 2,4,5,8,9,11
exhaust 1,3,6,7,10.12
__________________
SteveK
You only need one working engine. That is why I have two.
Sea Sanctuary-new to me 1992 Bayliner 4588
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03-28-2020, 07:18 PM
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#5
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Guru
City: Edgewater, MD
Vessel Name: Catalina Jack
Vessel Model: Defever 44
Join Date: Nov 2011
Posts: 3,585
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Cannot open it.
Quote:
Originally Posted by Soo-Valley
wrong info or you cannot open it.
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03-28-2020, 07:24 PM
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#6
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Guru
City: Gulf Islands, BC Canada
Vessel Name: Sea Sanctuary
Vessel Model: Bayliner 4588
Join Date: Jul 2019
Posts: 5,017
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Quote:
Originally Posted by catalinajack
Cannot open it.
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Intake 2,4,5,8,9,11
exhaust 1,3,6,7,10.12
It is a PDF file open with adobe
__________________
SteveK
You only need one working engine. That is why I have two.
Sea Sanctuary-new to me 1992 Bayliner 4588
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03-28-2020, 07:31 PM
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#7
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Guru
City: Edgewater, MD
Vessel Name: Catalina Jack
Vessel Model: Defever 44
Join Date: Nov 2011
Posts: 3,585
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Whoa, thanks so much. Just what I need to complete the job!
Quote:
Originally Posted by Soo-Valley
Intake 2,4,5,8,9,11
exhaust 1,3,6,7,10.12
It is a PDF file open with adobe
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06-17-2020, 01:11 PM
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#8
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Veteran Member
City: San Francisco
Vessel Name: Voyager
Vessel Model: Universal 39' Europa Trawler
Join Date: May 2018
Posts: 96
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Based on this picture of my head I would say the order is...from front to back (or left to right in picture):
1E-1I-2E-2I-3I-3E-4E-4I-5I-5E-6I-6E
The smaller ports are the exhaust.
Joe
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06-17-2020, 01:55 PM
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#9
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Guru
City: Gulf coast
Join Date: Aug 2016
Posts: 2,271
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Look at the exhaust manifold. The exhaust valves should line up with the ports on it. Follow air intake back to intake manifold. Intake valves will line up with the ports on it.
The firing order is 1 5 3 6 2 4
So buddies are
1 5 3 6 2 4
6 2 4 1 5 3
Adjust in firing order.
Rotate engine in normal direction (bump starter and look if you want to verify) until the valve you are rocking in has the exhaust and intake valves full up.
Set leaf so the right one drags, one size smaller slides right throuhj, and one size larger wont go.
Rock on 6, adjust 1.
Rock on 2, adjust 5.
Rock on 4 adjust 3.
Rock on 1, adjust 6.
Rock on 5, adjust 2.
Rock on 3, adjust 4.
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