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Old 05-15-2018, 11:32 PM   #1
KDA
Veteran Member
 
City: Vancouver
Join Date: Jan 2017
Posts: 46
Lehman 120 dual type fuel filter

I have a Lehman 120 with about 7000 hours on it. It stalls after running for about 2 hours. I have replaced the fuel lines, the primary and secondary filters, and the lift pump. I believe it is all being caused by the bleed screw and the securing bolt weeping on the first of the 2 secondary filters. I have replaced the copper washers but there is still evidence of diesel after the motor has been running. I am thinking of replacing the entire (Simms) filter with either a new one or a suitable replacement.
I wonder if there are new ones available for sale - couldn't find any on the net, or if there are replacement ones that have the same bolt pattern and line attachment points that are recommended.
I am using a 2 micron filter in the primary filter (Racor) and 2 micron filters in the secondary unit. Is this the best setup or should I change to a 10 micron filter in the primary?
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