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Just posting pic snd link: #16 is screen filtrr under reg /top of cooler i was referring to.
https://www.mercruiserparts.com/bam/...31904/2690/100 https://cimg5.ibsrv.net/gimg/www.off...871a602fc6.gif |
Originally Posted by SB
(Post 4823021)
Just posting pic snd link: #16 is screen filtrr under reg /top of cooler i was referring to.
https://www.mercruiserparts.com/bam/...31904/2690/100 https://cimg5.ibsrv.net/gimg/www.off...871a602fc6.gif |
Originally Posted by DrFeelgood
(Post 4823011)
In addition, these 502s have MEFI 1 PCMs and the early MPI Keihin style injectors, but have the later cool fuel system instead of a VST. So it's possible someone bastardized the whole thing at some point over the years.
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MEFI 1 with VST and mechanical pump mounted on raw water pump. MEFI 3 no mechanical fuel pump, and both used the standard fuel filter head
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Originally Posted by AllDodge
(Post 4823040)
MEFI 1 with VST and mechanical pump mounted on raw water pump. MEFI 3 no mechanical fuel pump, and both used the standard fuel filter head
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Originally Posted by DrFeelgood
(Post 4823041)
No mechanical pump. Filter heads on the forward bulkhead, plumbed directly (albeit backwards) to Cool Fuel under port side of motor. PCM has connectors on the ends not on the top/side
https://www.mercruiserparts.com/7-4l...-454-v-8-199-1 Look on the back of the MEFI for the numbers |
Another thought, you sure its a 502?
Might check casting numbers |
Originally Posted by DrFeelgood
(Post 4823022)
Yup thanks. Gonna disassemble that after work and check it out.
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Originally Posted by Wildman_grafix
(Post 4823053)
Lucky for you the half your seat lifts up, those are a PITA to get to on most.
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The screen under the regulator had just a tiny bit of debris in it. Nothing all that significant.
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