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Thread: 1998 225 Merc Motor HELP!!
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05-19-2018, 08:35 PM #121
No my motors usually reading 120 130 on healthy motor. I got 1 motor here reads 130 on All 6 and 70 80 90 on another motor. Usually reads pretty gud n past. I havent compared gages but I did get bout same reading as 1 shop they took it to. I think the guy that read 125 on all guage was bad
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05-19-2018, 08:42 PM #122
Well I have tested a pile of merc 2.5 motors in my time. Even motors that had 0 on 1 hole, I would see atleast 120 on a couple holes. Unless it was a slot motor. I have seen slot motors 110-115 across the board and run with a 200. Slots only affect compression test. Don’t matter when running.
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05-19-2018, 08:49 PM #123
Regardless of the motor they have. 100psi on a mercury cylinder is too low. Omc is a different story.
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05-19-2018, 08:49 PM #124
Right that's why I asked if it could b slot motor cause compression was n that range. 1hole 100,I wanna say 4 holes at 106 and a 115. Guess anything from here will need pull head not real sure what they r gonna decide to do. If it turns out b Promax I think I would look into rebuilding for cost effectiveness but I think he leaning toward new motor , also if it matters. Those #s are with closed throttle was little less open
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05-19-2018, 08:52 PM #125
Ya I thought so to when I seen #s. I hate it to ,as I'm going thru sort same thing.
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05-19-2018, 08:57 PM #126
The way it sits probably worth $1500 since it has alien cowl. Hopefully it can bring more on a trade in. Sorry guys.
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05-19-2018, 09:00 PM #127
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05-19-2018, 09:04 PM #128
Maybe. I know I have more parts than any 20 people would ever need and nobody seems interested anymore.
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05-19-2018, 09:17 PM #129Member
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I appreciate yall so much! If we had more knowledge and thought we could tear it down and get it all back together we definitely would try it but id rather put 5k+ into a brand new motor with warranty - my grandfather owns a marina in Key West and is a mercury dealer so we're waiting on some definite numbers from him on a brand new one.
I would love to be able to keep this motor and tinker with it to learn more but it would just end up being junk in the way!
Robert Thank you so much for taking the time today to try to help us!! It was great meeting you!
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05-19-2018, 09:38 PM #130
Sorry about your bad luck, but everything happens for a reason. I’m sure you will be back to fishing soon.
Nitro, you are a good guy. People like you brighten my day. If you ever need any parts to work on merc junk. Shoot me a pm. I will try to help you out.
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nitro_rat thanked for this post
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05-19-2018, 09:44 PM #131
No problem at all I was glad help and hate it turned out way it did but we will be back out soon and will b fishing again. Bullet 123 I need short block. Got parts for all that lol?
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05-19-2018, 09:53 PM #132
I have numerous 2.5 blocks, cranks, rods, electrics etc. call me tomorrow . Sent you a pm
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05-19-2018, 09:59 PM #133Member
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I agree Trent! We will get something figured out with it hopefully!
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05-19-2018, 10:03 PM #134
Lauren if yall need any more help with something feel free give me call ,I'll do what I can to help. Someone will need rig that new motor , will call tomorrow bullet thanks
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05-19-2018, 10:06 PM #135Member
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Thank you Robert! Brad will get in touch with you tomorrow or the first of the week and bring that light over to you!
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