1986 Mercury 150 HP XR2, Bleed hoses.

[Jimmy T]

Does anyone have information on correct hook up of Check Valve Bleed hoses to the check valves on the Reed Block Housing? My Seloc Manual shows Cylinder # 3 going to Check valve E, I looked at the motor and there isn't one from either Cylinder #3 and there isn't a Check Valve E.

 

[hkeiner]

Re: 1986 Mercury 150 HP XR2, Bleed hoses.

If you provide the serial number for your motor, it would help.

 

[j_martin]

Re: 1986 Mercury 150 HP XR2, Bleed hoses.

If you get the Mercury manual, it will have the correct routing for your engine in it.

hope it helps
John

 

[Jimmy T]

Re: 1986 Mercury 150 HP XR2, Bleed hoses.

Thanks John for the info. I went to a Mercury dealer today at lunch time. I spoke to one of the marine machanics and he even tried to pulled it up on their computer with no success. He suggested to contact Mercury and speak to customer service. I will try that tomorrow.

 

[Jimmy T]

Re: 1986 Mercury 150 HP XR2, Bleed hoses.

Serial # is A166460.

 

[j_martin]

Re: 1986 Mercury 150 HP XR2, Bleed hoses.

Tell the mercury parts man that the manual is in the miscelaneous parts list.

As I remember, some of them are missing one bleed line by design. Theory on bleed line is this, the line goes from a reed valve (picks up the puddle there) and delivers it to the opposite cylinder in timing. (#1 goes to #4, etc) The difference in routing is that vertical reeds service the cylinder right behind it, and horizontal reeds service the cylinder on the other bank. If you followed all that, you can figure out the correct bleed hose routing.

If the barb is missing, don't try to put a hose on it.

hope it helps
John

 

[Jimmy T]

Re: 1986 Mercury 150 HP XR2, Bleed hoses.

Thanks John, I will probably see him tomorrow late morning or early afternoon. Engine is still running rough not firing on all cylinders until it eventually get on plane, then the motor kicks in all cylinders and runs fine for a short distant then starts missing again at various rpms. I have been through the fuel system now completely. I had old fuel (12 gallons) from last october, tried running the boat several other times earlier this year with these problems thinking it was sour fuel or water contamination, put in the correct measure start up additive with no success. I started the repair sequence from draining the fuel tank, removing from boat, flushing it out, removing all fuel and vent hoses, replacing any that required replacing, replacing vent tube. Pulled all three carbs, disassembled completely, cleaned, checked floats and float levels, replaced leaky reed block gasket, replaced fuel pump with new kit, all three carb gaskets, choke plate gasket, and new water pump kit. Test run on the river today and not much change, still bogging down and then slowly picks up enough speed to get on plane then other cylinders kicks in and will enventually start running rough again. I don't belive it is fuel related now. The Mercury mechanic made a comment to me to check the stator. He stated it probably is faulty when changing over from low rpms to high rpms. I'll get in to that tomorrow.

 

[j_martin]

Re: 1986 Mercury 150 HP XR2, Bleed hoses.

DVA check on the stator takes a few minutes if you have the meter. Probably will show which of 4 windings is bad. Another few minutes checks the switchbox output to all 6 coils.


hope it helps
John

 

[Jimmy T]

Re: 1986 Mercury 150 HP XR2, Bleed hoses.

Sweet success, found problem. After checking all electrical operations from the spark plugs coils, stator, rectifier, triggers, and cd ignition I found the culprit. I remember reading in the manual earlier about checking the condition of the spark plugs for fowling. Found Cylinder # 4 looked suspect. After removing the Cowling Bracket from the engine I found the ground ring terminal that was suppose to have a 10/32 nut missing. Replaced and runs like new. Thanks to everyone help and insights.

Jimmy T