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496HO Down on power

Old 08-04-2022, 08:21 PM
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Boats do this to you............

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Old 08-04-2022, 09:08 PM
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Originally Posted by the deep View Post
Deep,

Yeah. I知 well aware.

B-ring
O-n
A-nother
T-housand

I've been boating awhile. And I used to help my dad wrench on our boat when I was a kid.

I did find some on eBay. Gonna try and find one locally, or hopefully someone here on OSO will have one.

Thanks. Brad.
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Old 08-04-2022, 09:52 PM
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Supposedly one in ny. Give知 a jingle
https://www.ebay.com/itm/261528022599
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Old 08-05-2022, 05:34 AM
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Originally Posted by SB View Post
Supposedly one in ny. Give知 a jingle
https://www.ebay.com/itm/261528022599
SB,

Yup. Found that. Probably gonna pull the trigger on it. I'm thinking about pulling all the injectors and sending them to Smitty, since the boat is down for a week anyway. Just take them out of the equation. I'm gonna call around some of the local shops first and see what I can find.

Thanks. Brad.
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Old 08-05-2022, 11:52 AM
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Originally Posted by SB View Post
Supposedly one in ny. Give知 a jingle
https://www.ebay.com/itm/261528022599
SB,

Local marine services shop ordered one from Merc. Can't complain about new OEM parts.

Injectors are coming out and headed to Smitty. Might as well just eliminate them as a possibility, rather than run empirical tests at this point. Won't cost me hardly any additional time. And it CAN'T hurt to have nice, freshly cleaned and flowed injectors, right?

Thanks. Brad.
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Old 08-05-2022, 12:03 PM
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Originally Posted by Brad Christy View Post
SB,

Local marine services shop ordered one from Merc. Can't complain about new OEM parts.

Injectors are coming out and headed to Smitty. Might as well just eliminate them as a possibility, rather than run empirical tests at this point. Won't cost me hardly any additional time. And it CAN'T hurt to have nice, freshly cleaned and flowed injectors, right?

Thanks. Brad.
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Pretty much a no-brainer there. Good peace of mind.
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Old 08-05-2022, 03:47 PM
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Originally Posted by Brad Christy View Post
SB,

Local marine services shop ordered one from Merc. Can't complain about new OEM parts.

Injectors are coming out and headed to Smitty. Might as well just eliminate them as a possibility, rather than run empirical tests at this point. Won't cost me hardly any additional time. And it CAN'T hurt to have nice, freshly cleaned and flowed injectors, right?

Thanks. Brad.
(937)545-8991
Won稚 hurt at all.
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Old 08-05-2022, 03:48 PM
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Oh, put知 in marked single bags (and tell dmitty you are doing so) since you have cyl firing issues.
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Old 08-05-2022, 06:43 PM
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Originally Posted by SB View Post
Oh, put知 in marked single bags (and tell dmitty you are doing so) since you have cyl firing issues.
SB,

Yup. Did that. Smitty and I discussed all of this before I even started swapping the injectors. I'm a small machine shop, so I have several sizes of "Write-On" ziplock bags on hand. I numbered them before they went into the boat (no Sharpies allowed on board), and they went into the bags one-by-one as they came out. He's going to flow them before cleaning them for the academics of it. They are going to be on his doorstep tomorrow afternoon.

Nothing like a little bit of serendipity. As it happens, apparently, I'd shredded the upper O-ring of one of the injectors I was swapping but hadn't noticed it until I pulled it back out along with the rest of them. That would have been a major raw fuel leak. That cracked coolant reservoir truly saved my ass. And, yes, I told Smitty about it so he wouldn't mistake it for having been a contributing factor leading to all of this. He also gave up his trade secret for installing them (Hint: it starts with "Vas" and ends in "eline").

My hope is that this will get me my (presumably) two cylinders back, along with the lost RPM and planing HP in this injector refresh process. If Smitty can pinpoint a faulty injector or two in the process, that'll just be validation.

I'm not sure what to do next if this doesn't cure the issue, though. Probably bug you guys some more.

Thanks. Brad.
(937)545-8991

Last edited by Brad Christy; 08-05-2022 at 06:45 PM.
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Old 08-08-2022, 11:01 PM
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Originally Posted by Brad Christy View Post
SB,

Yup. Did that. Smitty and I discussed all of this before I even started swapping the injectors. I'm a small machine shop, so I have several sizes of "Write-On" ziplock bags on hand. I numbered them before they went into the boat (no Sharpies allowed on board), and they went into the bags one-by-one as they came out. He's going to flow them before cleaning them for the academics of it. They are going to be on his doorstep tomorrow afternoon.

Nothing like a little bit of serendipity. As it happens, apparently, I'd shredded the upper O-ring of one of the injectors I was swapping but hadn't noticed it until I pulled it back out along with the rest of them. That would have been a major raw fuel leak. That cracked coolant reservoir truly saved my ass. And, yes, I told Smitty about it so he wouldn't mistake it for having been a contributing factor leading to all of this. He also gave up his trade secret for installing them (Hint: it starts with "Vas" and ends in "eline").

My hope is that this will get me my (presumably) two cylinders back, along with the lost RPM and planing HP in this injector refresh process. If Smitty can pinpoint a faulty injector or two in the process, that'll just be validation.

I'm not sure what to do next if this doesn't cure the issue, though. Probably bug you guys some more.

Thanks. Brad.
(937)545-8991
Silicone gease works even better but harder to find
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