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502 MPIs

Old 02-23-2017, 10:30 AM
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Good for you Tom ! Wow ! Lucky !

I had a boat I was working on that had a NAPA cap for Tbolt IV that was numbered wrong.
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Old 02-23-2017, 10:44 AM
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Originally Posted by SB
Good for you Tom ! Wow ! Lucky !

I had a boat I was working on that had a NAPA cap for Tbolt IV that was numbered wrong.
Thanks!

I have no clue on what they were thinking with regard to firing order. No clue at all!
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Old 02-23-2017, 11:53 AM
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that's great news for you. sounds to me like he wasn't aware the rotation is backwards on marine engines.
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Old 02-23-2017, 12:16 PM
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Originally Posted by RGPIII
that's great news for you. sounds to me like he wasn't aware the rotation is backwards on marine engines.
most are not.
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Old 02-23-2017, 12:26 PM
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Hope you got in on the 400 million dollar power ball too! Awesome luck man!
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Old 02-23-2017, 12:31 PM
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I played... haven't check to see if I won anything!
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Old 02-23-2017, 12:35 PM
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Originally Posted by RGPIII
that's great news for you. sounds to me like he wasn't aware the rotation is backwards on marine engines.
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Old 02-23-2017, 12:54 PM
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Originally Posted by mike tkach
most are not.
Originally Posted by SB
my 502 mag MPI's are in my formula. seems like they are in this particular boat as well.
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Old 02-23-2017, 02:34 PM
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I haven't tested, flowed and cleaned a set of mpi 502 injectors YET that didnt have at least one low one and one high one, fwiw. Definately get injectors flowed and cleaned before trying to drive boat in case they ARE screwed up so you dont melt a piston!
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Old 02-23-2017, 05:15 PM
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Originally Posted by RGPIII
my 502 mag MPI's are in my formula. seems like they are in this particular boat as well.
not arguing but i have never seen or heard of a reverse rotation 502 mag.what is the serial number on you,r engine?
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