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-   -   New engine ready to fire but WONT! Expierenced techs Please Help!!! (https://www.offshoreonly.com/forums/general-q/313674-new-engine-ready-fire-but-wont-expierenced-techs-please-help.html)

Pismo10 06-12-2014 01:31 PM

Yes, limit switch

dmaxximus 06-12-2014 02:10 PM


Originally Posted by Budman II (Post 4136834)
There might be a problem with the trim limit switch. Black double wire coming from the transom assembly.

Look in transom area for your trim motor, there are usually 2 small wires that have connectors running to it. Those will come loose or disconnect and you'll lose trim function. Mine has done it in rough water at LOTO. Just an idea

gmgearhead454 06-12-2014 05:56 PM

Can't wait to try those ideas, too bad 10 minutes ago I had a trailor bearing go out on the highway and about melttheboat down! Oh and it's raining again. Gonna be a long night.... seriously, mint condition 89 Formula 24242ls w built 454.... $100 anyone? Lol

gmgearhead454 06-14-2014 12:11 AM

Just a quick update incase anyone was still following, I finally got the motor started today! That thing screamed to life, I broke the cam in, and got it idling real nice with no problems so far. Was getting kinda late and was EXTREMELY loud (in a good way thanks to the CMI's) so I had to call it a night... Gonna get up early and set the timing, get that trim problem handled, and hopefully take it out for the first run! Wish me luck guys :) Oh, and while I'm at it, what are you guys' suggestions for breaking in a new motor? It is a hydraulic flat tappet motor, but everything is new, bearing, rings, pistons, cam, lifters, you name it. Thanks again, hope to see some of you at LOTO!

Jonesyfxr 06-14-2014 07:48 AM

I personally like Lucas Hotrod oil in cars, it has the zinc and phosphorous needed to protect that new cam.

gmgearhead454 06-14-2014 06:29 PM

I got some pretty heavy zinc oil in it, I mean like drive - cycles and how many rpms to put "X" amount of hours on before I can open it up!?

Griff 06-15-2014 01:40 AM

The engine is broke in after an hour as long it was assembled correctly.

Budman II 06-15-2014 11:50 AM

If the cylinders were plateau honed with the proper grit stone the rings should seat in very quickly. I would just drive it fairly easy for a few hours, and then drive it like you stole it. Several builders have recommended putting a seaon of driving on the motor before switching from organic to synthetic oil, but I'm sure some will disagree with this as there seems to be dozens of theories on breaking oil, etc.

Nordic Bear 06-15-2014 12:18 PM


Originally Posted by gmgearhead454 (Post 4137580)
Just a quick update incase anyone was still following, I finally got the motor started today! That thing screamed to life, I broke the cam in, and got it idling real nice with no problems so far. Was getting kinda late and was EXTREMELY loud (in a good way thanks to the CMI's) so I had to call it a night... Gonna get up early and set the timing, get that trim problem handled, and hopefully take it out for the first run! Wish me luck guys :) Oh, and while I'm at it, what are you guys' suggestions for breaking in a new motor? It is a hydraulic flat tappet motor, but everything is new, bearing, rings, pistons, cam, lifters, you name it. Thanks again, hope to see some of you at LOTO!

What did you find was the problem....


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