89 Force125 Transfer port

[wrencherdustin]

I just rebuilt my force 125. Had to go with .030 over pistons bored all cylinders etc. when i got it running the # 4 transfer port cover has a 90 deg. elbow comming off and exhaust is blowing out. Is this normal? i do not rember if there was a cap or a hose leading to the lower unit.

 

[redstrat]

Re: 89 Force125 Transfer port

I was going to send you some pics but it appears that function isn't working right now. I think you're talking about the fuel recirculating system. The hoses run from the #1 top cylinder to the bottom of the top reed plate. Also from the #3 to the bottom of the lower reed plate. Then a short hose from the elbow near the center of the lower reed plate to the fuel pump. Hope this helps

 

[wrencherdustin]

Re: 89 Force125 Transfer port

thanks for your reply. there is a nipple that comes off the fuel pump housing, just hard to see from that angle. it goes to the # 4 transfer plate port elbow.

 

[Frank Acampora]

Re: 89 Force125 Transfer port

Are you counting the top cylinder as #1, thus top down 1, 2, 3, 4?

#1 and #3 have a nipple that accepts a small hose from the two oil recirculation plates between the bypass covers and block parting flanges.

The fuel pump also has a nipple ( on the cover, just below the removable part of the pump.) that is serviced by a short length of fuel line from the block boss near #4. This is the impulse fitting for the second stage of the fuel pump

 

[wrencherdustin]

Re: 89 Force125 Transfer port

yes #1 is by the flywheel. you are so right the #1 and # three have that hose ( did not know where or what it was called) where they went. so, the # 3 exhaust port plate housing is where the fuel pump housing is located. the 90 deg. elbow actually comes out of the block near # 4 cyl. You set me straight Admiral
Next problem(newly assembled engine). im getting water in all cylinders. i mixed 25 to 1 ratio. I justed removed the cyl head. and for sure am getting water in all cylinders. no leaks found at the head gasket. Another thing when i stow the engine ( Vertical andposition almost) i notice the same milkey mixture comes out the carbs. i did a fuel sample and seemed ok. i replaced the exhaust port plate cause it was warped perferrated (from the orignal overheating) is there any way water could be comming from there goin

 

[wrencherdustin]

Re: 89 Force125 Transfer port

into all cylinders. and backing up out the carbs when i stow the engine. i recently drained the fuel system last year. when i bought the boat.

 

[bentle]

Re: 89 Force125 Transfer port

Water in cylinders usually means leaking or blown head gasket. May also be the exhaust plate gasket or plate az well.
When you replaced the head gasket did you torque the bolts down in the right sequence and what torque setting?
Cylinder head bolts are torqued at 225 inch pounds and exhaust plate torqued to 70 inch pounds.
The milky residue is water mixed with the 2 cycle fuel mix and coming from the wet cylinders or in other words from inside the motor.

 

[Frank Acampora]

Re: 89 Force125 Transfer port

Any water that gets into the exhaust chest can blow back into the cylinders. If it then works its way back into the bypass ports, it will get into the block and thus can work its way out the carbs as milky fuel. This needs to be addressed immediately because it will rust all the bearings and crank surfaces, basically ruining your rebuild. The first thing you need to do is generously spray the inside (through the carbs--fogging) with a water removing oil and work it to protect the hardened steel internal parts.

At this point since you did a rebuild and most likely replaced the head gasket, the most likely suspect for water leakage into cylinders is from the exhaust cover. When you replaced the stainless plate, did you sandwich it between two identical gaskets? Did you clean all the old gasket off the block? Did you examine the block to see if there were any nicks or chips on the inside walls of the exhaust chest at the gasket seating surface? Did you look for perforations inside the exhaust chest?

However, if you did not replace the head gasket and/or did not torque it to the correct values, this needs checking also. Note that after running a rebuilt engine with a new head gasket, the head bolts must be re-torqued to the correct value. The heat of initial running compresses the gasked some and you will be able to get almost another 1/4 turn to reach the 225 inch pounds again.

 

[wrencherdustin]

Re: 89 Force125 Transfer port

I first torqued the head bolts to 220 inch lbs. on the first start up i noticed water seaping out externally from the head gasket. I retorqued to 270 inch lbs. note i took every bolt to a wire bench grinder before assembly. I did not use any anti-seize or lube on the threads. It said nothing of the sort in the repair manual.

I did replace the exhaust port plate. There is two almost idenitcal gaskets that go on either side. I beleve i torqued them to 90 inch lbs. the manual was not very specific on the wording.

I torqued the head, and exhaust port plate the same as you would in the automotive industry. I started in the center and worked my way out. I also did a three step procedure ending with final torque.

I removed the cylinder head sprayed all cylinders with WD40,cranked the engine over by hand. I ordered the carb rebuild kits. IM going to remove the and spray like you told me. Next Im going to take off the exhaust port plate for inspection of possible water leak into the cylinders. Thanks ill up date soon as in know

 

[wrencherdustin]

Re: 89 Force125 Transfer port

well Frank,and everyone else thanks.. I made a rookie move. the gasket set comes with multiple gaskets for the exhaust port plate.I removed it and upon inspection. I used the one without a row i needed. Needless to say i had the correct gasket all along. I put it on with new head gasket etc. runs great. Im still waiting for my duel carb rebuild kit to come in the mail. That should be my final step in the rebuild... well lots of uptolstry left lol. Enjoy your summer. And everyone else hope u learn from my experiance.

 

[wrencherdustin]

Re: 89 Force125 Transfer port

Bentle you rock too!!