502 MPIs
#21
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This should be good.......
#22
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Problem solved!!!
Someone messed with the timing.... bad!
I put her into service mode to check timing and codes. The only code was for the manifold air temp (23) and that's because I disconnected it. So, checked timing... 35 degrees btdc in service mode. No wonder she wouldn't run right!! Set the timing at 8 degrees.... running like she's supposed to!
Thanks for the suggestion about the timing!!
Someone messed with the timing.... bad!
I put her into service mode to check timing and codes. The only code was for the manifold air temp (23) and that's because I disconnected it. So, checked timing... 35 degrees btdc in service mode. No wonder she wouldn't run right!! Set the timing at 8 degrees.... running like she's supposed to!
Thanks for the suggestion about the timing!!
#24
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Are injected engines that much more prone to failure? Is this just a 502/454 MPI issues, or does this affect the blue engines and 496?
How many hours is one looking at in terms service interval? And, is it possible to treat the fuel so that the interval can be extended or prevented, or is there some type of design flaw with the injectors themselves that causes flow issues?
Kind of scary folks!
How many hours is one looking at in terms service interval? And, is it possible to treat the fuel so that the interval can be extended or prevented, or is there some type of design flaw with the injectors themselves that causes flow issues?
Kind of scary folks!
#26
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Yes, usually the story is quite the opposite.
I think there was some funny stuff going on with the deal; perhaps they were really looking to keep the boat from being sold. After going over everything, I cannot believe that this mechanic could have gotten the engine this far out of whack without it being on purpose.
I think there was some funny stuff going on with the deal; perhaps they were really looking to keep the boat from being sold. After going over everything, I cannot believe that this mechanic could have gotten the engine this far out of whack without it being on purpose.
#27
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Its possible the distributor slipped being that its on a reverse rotation engine
#29
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Are injected engines that much more prone to failure? Is this just a 502/454 MPI issues, or does this affect the blue engines and 496?
How many hours is one looking at in terms service interval? And, is it possible to treat the fuel so that the interval can be extended or prevented, or is there some type of design flaw with the injectors themselves that causes flow issues?
Kind of scary folks!
How many hours is one looking at in terms service interval? And, is it possible to treat the fuel so that the interval can be extended or prevented, or is there some type of design flaw with the injectors themselves that causes flow issues?
Kind of scary folks!
#30
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iTrader: (1)
Hey TomZ - anyway you can find out what other boats these people worked on, or what they work on in the future ? A lot of us may be interested in them when they go up for sale right after said work is done.
Edit in; though if run under load one would think headgaskets and/or piston damage may occur.
Edit in; though if run under load one would think headgaskets and/or piston damage may occur.
Last edited by SB; 02-25-2017 at 07:20 AM.