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Thanks so much @EuropeanAM! I appreciate you taking the time to look my part number up, explaining the construction "split" and how to "grease" it into place. Needless to say I buy everything I can...

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Finally got my Tilt/Trim assembly back from Five Star Marine in New Port Ritchie who did a fabulous job. Highly recommend. Final bill $1200 for complete trim assy rebuild including new...

Massbays ="hammer it thru to inside of brkt." Got it!! Thanks for your continued sound advice!!

Hey Massbays, Yes, I just found that 4" :) The boat is not local but I assume you are suggesting I look in the transom bracket to see if there is a bolt head?

Lets assume there is a bolt head...

Thanks again all for your thoughtful answers and help.
Im closing in on getting the darn trim assembly off the motor but need a little pro expertise/help.

In looking at the attached pic. I show...

Thanks again Joe for your help. Your experience and excellent explanation are very rare these days. As an fyi, you were correct, Five Star is the name of the company who does the tilt & trim rebuild....

Massbays, More thanks for your insight but Yes, I understand where and how the manual release valve works that is how I lifted the motor originally. Given your answer (about manual release) you are...

Massbays, Thanks again!! I'm getting you....

1) One question is you wrote : " Tilt the motor completely up", I have no power trim!! The motor is in the full up position (trailer brake engaged)...

Thanks Massbays, Yes, I understand better now how the wood wedges function. The boat/motor wasnt local so I had to look again to better understand your description.

The only comment to your above...

Thanks Massbays and others for your thoughts, I have a question from your comment and the service manual description to remove trim assembly.
See attached pic. Massbays comment “put wooden wedges...

Thanks massbays for the input. Is it possible to do as you say (spread mounting brackets) without removing the engine? Furthermore, the idea "take it to an auto machine shop" do these guys ever do...

So, bad news. I followed the input for all the helpful folks on this site….Tons of penetrating oil >Heated the sh*t out of the stud/ let stud cool overnight and then heated the aluminum casting and...

Thanks again FeFanatic and EuropeanAM. I understand the logic of heating the stud to expand and letting cool off. And EuropeanAM I placed the old trim pump in the pump housing to help ensure nothing...

Thanks everyone for your input!! I appreciate the various ideas.
1) The problem with the 2 nut method is I gripped the stud with a vice grips to just see sorta see what that "felt like" and...

Thanks for your input Savage (lubricating wax and weld nut). I do not know how to weld...if I were to search for someone who could do the welding would a "mobile weld" guy (craigslist) be an option?...

1998 250 EFI motor. Dont have serial # in front of me but very common trim pump to almost all 3L Mercs.

From picture the rear power trim bolt head snapped off with just the stud sticking up.
...

525270Does the Diacom unit provide the same amount of info/diagnostics as provided by the Merc DDT unit?

JOE54 => "start engine let it run with oil hose off of vst untill air is gone hold hose vertically" Thanks for the input

So great news is after the above the motor started first turn of the key (ran fresh premix 50:1). So again huge thanks to EuropeanAM and JOE54!!

As I am running premix fuel, I disconnected the...

EuropeanAM "NOTE: When priming these systems after servicing, you should always supply PREMIXED fuel from a separate source. Run for a couple minutes- if you didn't open any oil lines or connections ...

EuropeanAM thanks for the info and detailed answer. Great info!

1997 Merc 250 EFI (twin). I know I need the serial # but dont have at this moment.

When I replaced my high pressure pumps (in VST) I found a build up of powder type material at the high press...

Big thanks to Joe54 and EuroepanAM as my freaking VST needle shuts off perfectly!! I had to bend the brass tang more than 0.020” to about 0.030” to get needle to fully seat- just fyi to others...

JOE54: "bending float tang in pic will adjust float level" Thank you!!

Looking for a visual guestimate confirmation (see pic below). The float tang was super touchy and Im wanting to use the boat this weekend. My simple high school trigonometry tells me I needed to bend...