1987/1995 evinrude 88 spl

[dieselcat]

i installed a new powerhead on my boat and when i started it,it barely peed out the tell tail and i could see water leaking somewhere from around the lower cover.its not leaking anywhere from where powerhead mounts to motor.any idea what i might check.

it prolly doesnt matter but phead is 1987 and rest of motor is 1995.

 

[emdsapmgr]

Re: 1987/1995 evinrude 88 spl

I'm assuming that you did put a new powerhead base gasket on the midsection before you mounted the powerhead. Sounds like that is where it is leaking-but you say it is not... The water pump may be just fine. Make sure the telltale is not plugged. You can force some compressed air up the nozzle, or take the hose, nozzle apart and check for restrictions, like dirt, weeds, other debris. That plastic nozzle is a restriction by design and it does plug up on occasion. Always good to put a new water pump impeller with a new powerhead. No need to fry a new powerhead. After running a new engine, it's good to retorque a few things when it cools off: heads and exhaust cover)s). They usually need a minor retorquing. You can get water leaks from both if not at the correct torque.

 

[dieselcat]

Re: 1987/1995 evinrude 88 spl

yes brand new powerhead base gasket was installed,no water leaking anywere around that gasket.the water seems to be coming from by the rubber mount that goes in the exhaust housing adapter.i believe its the rubber grommet that goes on top of water tube.cant figure out how to remove mid section to access it?any helpfull hints would be apreciated.my seloc manual has absolutly nothing about removingmid section.plz hlp!

 

[dieselcat]

Re: 1987/1995 evinrude 88 spl

Ttt

 

[emdsapmgr]

Re: 1987/1995 evinrude 88 spl

You can look at the exploded factory parts diagram on Bombardier's website: epc.brp.com It's unusual for that grommet to cause a problem-it's always possible the powerhead was severely overheated causing a failure in the grommet.... I would think that any water leak here would hard to identify, it would just run down inside the midsection. The midsection diagram shows the water tube and the rubber grommet (seal) which is at the top of the water tube, just under the exhaust adapter. Hard to tell if you can access that by removing the lower unit and working from the underside. The factory service manual shows working on that tube by removing the powerhead, then extracting the exhaust adapter from the midsection, then turning it upside down on the workbench. A major job.

 

[dieselcat]

Re: 1987/1995 evinrude 88 spl

ok,i took phead back off lastnight and also the lower unit.then i hooked a hose up to watertube and semi blocked the hole on top plate of mid section and i can definatly see it is leaking somewhere by the grommet at top of water tube,or the grommet its self.the water is not making it to the powerhead or atleast not much water is.i disconnected both rubber hoses from heads to thermostats and ran motor momentarily water barely came out.there are no obstructions in the phead,i blew through all water holes on phead all are clear.

 

[emdsapmgr]

Re: 1987/1995 evinrude 88 spl

Wow, you are putting a lot of effort into this. Not some easy labor. Well, you almost have it all apart. With the powerhead off, you might as well remove the exhaust adapter and pull it out so you can work on the water tube on the workbench. I'll be really interested in what you find. Sometimes those water tubes can get damaged if the lower unit is not reinstalled correctly during a water pump replace...

 

[dieselcat]

Re: 1987/1995 evinrude 88 spl

Wow, you are putting a lot of effort into this. Not some easy labor. Well, you almost have it all apart. With the powerhead off, you might as well remove the exhaust adapter and pull it out so you can work on the water tube on the workbench. I'll be really interested in what you find. Sometimes those water tubes can get damaged if the lower unit is not reinstalled correctly during a water pump replace...

yes i have,im not afraid of tearing into these v4 rudes.to me they are very easy to work on for the most part.as for the rest of this project i opted to take it to my local dealer for the rest of the work.but i will let you know the outcome.

 

[dieselcat]

Re: 1987/1995 evinrude 88 spl

ok my local dealer finally got the motor apart but ended up breaking the upper rubber mount assy which i had planned ahead & ordered new/used 1.just giving the update i had promised,it was not the grommet that was bad it was a gasket.they are going to replace the grommet as well.i should be up and running by end of weekend.thanks to all!

 

[emdsapmgr]

Re: 1987/1995 evinrude 88 spl

Sounds like a fairly unusual failure. Glad your dealer found it!