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Max Online: 36273 @ 01/23/13 02:34 PM
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#10762370 - 04/12/15 06:26 PM Merc 150 Opti-Max
Buz Online   content
Outdoorsman

Registered: 02/26/14
Posts: 71
Loc: Frisco, Texas


Got to the ramp last night, loaded the boat and noticed what appeared to be hydraulic oil on the back of the transom underneath the engine. At first I thought maybe it was the Teleflex / Seastar power steering cylinder leaking. I've had them go bad before on other boats.

I had the ability to examine everything in the "Light Of Day". The steering unit is smooth, couldn't find any leaks, although I did notice that above about 30 MPH, the steering was very stiff yesterday. There isn't any slop / dead play in the steering, setting on the trailer it appears to be "Like New".

Removed the engine cowling and did a fairly detail inspection on the engine and didn't find anything obvious that could have created the problem.

Guys, need your collective "Wisdom" and idea on what to look at next.

OBW, during my fishing outing yesterday the engine ran great, no indications on that there is a problem with the engine, temp, water pressure, etc.

Any help would be very much appreciated.

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#10762390 - 04/12/15 06:33 PM Re: Merc 150 Opti-Max [Re: Buz]
RangerBass21 Offline
Extreme Angler

Registered: 01/09/15
Posts: 2210
Loc: Plano
Flux capacitor is leaking, needs to be replaced.
_________________________
bannana2

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#10762483 - 04/12/15 07:19 PM Re: Merc 150 Opti-Max [Re: Buz]
Pat Goff Online   content
TFF Team Angler

Registered: 01/29/05
Posts: 4988
Loc: Marble Falls/Seadrift
What color is it?
_________________________
Pat Goff
Marble Falls/Seadrift TX

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#10762560 - 04/12/15 08:01 PM Re: Merc 150 Opti-Max [Re: Buz]
Buz Online   content
Outdoorsman

Registered: 02/26/14
Posts: 71
Loc: Frisco, Texas
The color of the residual on the transom appear to be almost clear to a slight "Yellowish" liquid. Agian, my first instinct was to blame the hydraulic steering unit, but again, it appears to be "Like New"


I'm lost, this should be simply, but I haven't decoded this as of yet....

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#10762567 - 04/12/15 08:03 PM Re: Merc 150 Opti-Max [Re: Buz]
Buz Online   content
Outdoorsman

Registered: 02/26/14
Posts: 71
Loc: Frisco, Texas
Curious, what is a flux capacitor, and where is located on the engine? It would need to hold a large quantity of liquid to leave the footprint I found on my transom....

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#10762697 - 04/12/15 08:59 PM Re: Merc 150 Opti-Max [Re: Buz]
gary purdy Online   content
TFF Guru

Registered: 05/24/03
Posts: 10517
Loc: Littlefield Tx & Lake A. H. US...
Only if your boat is a Delorean going back to the future.
_________________________
“The world will not be destroyed by those who do evil, but by those who watch them without doing anything” GOD IS GOOD

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#10763057 - 04/13/15 05:25 AM Re: Merc 150 Opti-Max [Re: Buz]
Buz Online   content
Outdoorsman

Registered: 02/26/14
Posts: 71
Loc: Frisco, Texas
Appears I can remove the "Flux Capacitor" as an item on my trouble shooting list.....actually enjoyed the humor

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#10763167 - 04/13/15 07:41 AM Re: Merc 150 Opti-Max [Re: Buz]
RangerBass21 Offline
Extreme Angler

Registered: 01/09/15
Posts: 2210
Loc: Plano
Originally Posted By: Buz
Appears I can remove the "Flux Capacitor" as an item on my trouble shooting list.....actually enjoyed the humor
I've actually said that before to some ripoff idiot mechanic, he told me he couldn't find the problem, I've looked over and over and can't seem to figure it out, I said wellll did you check the flux capacitor that'd be my first guess, he looked at me weird and said I checked it, seems to be fine and operating normal......yeah I think it's time to go somewhere else roflmao
_________________________
bannana2

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#10763889 - 04/13/15 10:54 AM Re: Merc 150 Opti-Max [Re: Buz]
DFW-fisherman Offline
Extreme Angler

Registered: 04/01/11
Posts: 1197
Loc: DFW
Funny guy; welcome back Ranger21 to the posting world. bouncy

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#10765307 - 04/13/15 05:36 PM Re: Merc 150 Opti-Max [Re: Buz]
Buz Online   content
Outdoorsman

Registered: 02/26/14
Posts: 71
Loc: Frisco, Texas
So as a TAMU alumn, I enjoy and participate in humor, given it's in good taste and pointed toward TAMU.......Now back to my issue....I'm still thinking this is a problem with the hydraulic steering unit. As I understand there isn't anything else below the power head , other than the steering "Assist Unit" that would cause this problem.

Ok, you engine "Techs", need to jump in on this blog and, think "Out Loud" in text about any thoughts you can provide on the problem and possible recommendations.....

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#10765355 - 04/13/15 05:59 PM Re: Merc 150 Opti-Max [Re: Buz]
kingdad101 Offline
TFF Guru

Registered: 10/24/05
Posts: 20708
Loc: W.F. Texas
only other thing I can think of lower that the power head is the tilt and trim..unless you have a hydraulic jackplate

I guess when you looked, there was no oil in the pan on the motor..so times the carbs spill/leak, left over/unburned gas/oil




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#10770182 - 04/15/15 01:51 PM Re: Merc 150 Opti-Max [Re: Buz]
Buz Online   content
Outdoorsman

Registered: 02/26/14
Posts: 71
Loc: Frisco, Texas
kingdad 101,
Tks for your response. Yes, I did a inspection of both the powerhead and the pan below the powerhead when I had the engine bonnet off, and their was nothing leaking from the engine as I ran it on the water hose at the house.

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#10770593 - 04/15/15 04:56 PM Re: Merc 150 Opti-Max [Re: Buz]
kingdad101 Offline
TFF Guru

Registered: 10/24/05
Posts: 20708
Loc: W.F. Texas
well...noidea.....did you check the fluid level in the steering helm..seems like it has to be the steering fluid you are seeing..

Quote:
the steering was very stiff yesterday
if this is not it, I give... grin

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#10774353 - 04/17/15 07:48 AM Re: Merc 150 Opti-Max [Re: Buz]
Buz Online   content
Outdoorsman

Registered: 02/26/14
Posts: 71
Loc: Frisco, Texas
Good inputs from one and all....

Finally gave up and carried it back to the lake. At speeds under ~~ 20mph the steering worked great, get above ~~20 mph where the pressure exerted around the lower unit starts to build and loads the steering cylinder, and it began to leak hydraulic fluid.

Ordered a cylinder rebuild kit, this should solve the problem......

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