Resolved o ring coolant pipe Fel-Pro part number

[mrfister11]

anyone have a part number from Fel-Pro for the o rings on the water pipe between thermostat housing and water pump... my new pump came with one so i need the other side. parts stores are morons and i cant find it on the site and jnztuning wont bring it up, even if i use the mitsubishi part number... and i dont want/cant wait for it to be shipped and spend 15 dollars on two of them online.. any help would be awesome

 

[19Eclipse90]

FelPro P/N: FPG ES72872

 

[mrfister11]

hell yeah thx.. i dont know why they couldnt come up with it at the part store...

 

[luv2rallye]

One common source of a water pump leak is the o-ring not installed properly. You must replace the o-ring in the crossover inlet pipe by putting it on the pipe end first, coating with coolant, and then insert pipe with o-ring into water pump – do not put the o-ring into water pump first as it will not seat properly and will leak.
Also do not use RTV on the water pipe. The o-ring does the job of sealing the water pipe to the pump housing and doesn't need anything else. The RTV will reduce it's ability to seal and flex and can actually create ways for the coolant to leak. Make sure that the water pipe is free of any corrosion where the o-ring sits and that the o-ring is lubed with coolant before putting the pump on so it isn't cut or torn. Take a scotch brite pad (the green kitchen scrubbers) and polish the water pipe end if necessary. Use a new o-ring. Make sure you don't scratch the inside of the water pump.

 

[steve]

Make sure that the water pipe is free of any corrosion where the o-ring sits and that the o-ring is lubed with coolant before putting the pump on so it isn't cut or torn. Take a scotch brite pad (the green kitchen scrubbers) and polish the water pipe end if necessary. Use a new o-ring. Make sure you don't scratch the inside of the water pump.

I think this is key to getting a good seal. I found corrosion on the ends of every waterpipe. Since the new o-ring isn't likely to sit exactly in the same place as the old one did, the pipe has to be clean and smooth to give the new o-ring a chance to seal.