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I have a power trim unit that won't lift motor and I can
I have a power trim unit that won't lift motor and I can force ram in by hand. Mind you it takes quite a push. 1999 115 Mercury… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I bought a brand new (2015 or 2016) Mercury 155 HP motor
I bought a brand new (2015 or 2016) Mercury 155 HP motor last year along with a Lund Crossover boat. The motor was fine during the first summer. However, this year, when going at full speed with the m… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
2004 mercury 75 hp 4 stroke will not go all the way up on
2004 mercury 75 hp 4 stroke will not go all the way up on the power trim. It will go about half way up , but no further . I tried bleeding the system repeatedly but with no improvement. The power trim… read more
Jeff G.
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,729 satisfied customers
I have a 1998 force 90 hp outboard.I'm having trouble with
I have a 1998 force 90 hp outboard.I'm having trouble with trim and tilt .When the outboard is all the way down it won't go up unless it has assistance.Once up it creeps down.No problem going down.I'v… read more
Jeff G.
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,729 satisfied customers
. I have twin Mariner Bigfoots 60hp 2stroke circa 1996 that
Hi. I have twin Mariner Bigfoots 60hp 2stroke circa 1996 that have done very low hours but have always been a problem with overheating and top piston sieze/scoring etc. Have reconditioned 3 times in l… read more
Jeff G.
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,729 satisfied customers
Trim on my 1996 75hp Merc wont go up all the way under load
Trim on my 1996 75hp Merc wont go up all the way under load (pushing boat). It goes half way and then gets stuck making short up down cycles about 1 inch up & down. It goes up & down fine when not und… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
Is Uflex Ultrabolt 3/8" the correct Hex head bolt to mount
Is Uflex Ultrabolt 3/8" the correct Hex head bolt to mount twin cylinder front hydraulic steering unit(Threaded with locknut) to starboard engine front mount. Also need info on other spacers, nylon bu… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
Hi, i have a 1998 100ELPTO The power trim is not holding up.
Hi, i have a 1998 100ELPTO The power trim is not holding up. When underload it will not move up, and when out of water it will trim up slowly then drops back down under its own weight about as fast as… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
here is my issue. My tilt n trim stopped going all the way
here is my issue. My tilt n trim stopped going all the way up, it would go mostly up and then slowly drop back down halfway, still partially up. This is what i replaced so far: the fill plug kit, scre… read more
Charles
Charles
Certified Mercury Tech
5,077 satisfied customers
I recently replaced my tilt n trim on a 1993 Mercury 75 hp,
I recently replaced my tilt n trim on a 1993 Mercury 75 hp, serial number 0g063645 black fill plug. Here is what i did so far: I replace the shock rod assembly, the cylinder(had crack inside), the bru… read more
Malta Tech
Malta Tech
Marine Tech
High School or GED
287 satisfied customers
Power trim and tilt problems with a Mercury 50 HP.
I have a 2006 Mercury 50 HP 2 stroke. Having trouble with the power trim & tilt. After I take off and start to trim the motor to raise the bow, I will start up but stop. If I start out with some trim … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
We changed Hydraulic Ram Housing for trim ram on Mercury 115
We changed Hydraulic Ram Housing for trim ram on Mercury 115 because original cylinder split, It came with an update kit insert plastic ball, metal ball, new seat and O ring. We reassembled unit put b… read more
Michael
Michael
master marine technician/charter captain
Vocational, Technical or Trade Scho
256 satisfied customers
have 94 90 hp merc outboard. Trim will lift eng only slowly
have 94 90 hp merc outboard. Trim will lift eng only slowly or not at all. Engine falls if it is at max tilt. Have replaced trim/tilt pilot valve components (kit#811226-A1)and cleaned manifold/pump co… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
I have two 135 Mercury Optimax DFI on my boat(2007). I have
I have two 135 Mercury Optimax DFI on my boat(2007). I have just done a kit replacement on the main Trim Tilt Cylinder. When replacing the seals and O rings some of the hydraulic fluid was lost. Would… read more
Whitecap36
Whitecap36
Service Manager/Technician
Vocational, Technical or Trade Scho
1,545 satisfied customers
Have a 2002 Mercruiser 5.0L, AlphaOne Gen II that has been
Have a 2002 Mercruiser 5.0L, AlphaOne Gen II that has been a freshwater boat but will be docked in the brackish Hudson River this year. Questions: 1. Should the anodes be replaced because of wrong met… read more
Jeff G.
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,729 satisfied customers
i have a 1979 johnson 85hp outboard, the problem i am having
i have a 1979 johnson 85hp outboard, the problem i am having is with my tilt and trim. the motor will not move up unless someone holds in the tilt switch and some one pulls up on the motor. If you lea… read more
Jeff G.
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,729 satisfied customers
I have a 94 Johnson 88hp and an having problems getting the
I have a 94 Johnson 88hp and an having problems getting the TNT to come down. It goes up like a champ but sounds like it's bottoming out when you hit the down button on the side of the engine and the … read more
Dominick
Dominick
Marine Mechanic
Vocational, Technical or Trade Scho
1,009 satisfied customers
I have an old (1986) Mercury Mariner boat motor. The power
I have an old (1986) Mercury Mariner boat motor. The power tilt works, but the engine falls when under acceleration. Why might that be happening? Also, since I can't trim the motor up, would that caus… read more
orcamarine
orcamarine
Proprietor
Vocational, Technical or Trade Scho
7 satisfied customers
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Meet the Experts:

Dominick

Dominick

Marine Mechanic

1,009 satisfied customers

25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified

Ted G.

Ted G.

Rigger, Diagnostician

704 satisfied customers

40 years boating, Safe boating instruct., Offshore Race promoter, Failure Analysis, Expert Witness

John White

John White

Marine Mechanic

306 satisfied customers

11 years experience working on outboards, inboards, sterndrives & pwcs

Jason

Jason

Marine Mechanic

17,310 satisfied customers

Degree in Marine Technology. Gas and diesel marine mechanic.

Tan

Tan

MerCruiser Certified Technician

11,264 satisfied customers

40 yrs. experience with complete engine repairs both inboard/outboard and MerCruiser Certified Technician.

Jeff G.

Jeff G.

Marine Mechanic

4,729 satisfied customers

42 years experience, Certified Master Technician, All Major Outboards, Sterndrives, Hi-Performance

Captain Dave

Captain Dave

Marine Mechanic

2,672 satisfied customers

USCG Licensed Captain, 20+ Years Boating, Fishing, Maintenance and Repair Experience

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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