914 subaru water pump over heating Options

[jeepguy06]

hey guys

so I have a ej205 in the 914 and when sitting at lights in traffic it starts to overheat. I watch the temps clime to 208.4 at times if not hotter. I find that revving the car to 3k and keep it for about 30 seconds to get the coolant moving the temps will then drop down to 203. once i start moving and driving the temps drop all the way down to 197.6 I just feel that the water pump is not able to move the water from engine to radiator all the way in the front. has anyone else had issues like this and how did you repair them? add another water pump that's electric?

[L-Jet914]

I've worked on EJ's as well. I think the best invention to come out for EJ's, FA's is the vacufill system that pulls the cooling system into a vacuum, prime the fill line shortly, pull another quick vacuum, then fill the cooling system. I ran into many an issue with EJ25's in the late 90s to mid 2000s outbacks. Fans would come on high speed and I only got cool air through the radiator. I had to burp the system multiple times. As for the VW Vanagons which I have also worked on, they have a bleed valve on the top of the radiator. Before the vacufill systems arrived we would raise the front of the Vanagons and burp the cooling systems that way until all of the air was out with heater on full hot. I have the Snap-On version where I work but AirLift was the first version I heard of when the tool came to the market. I use it on the occasional MR-2's that come in and the FR-S/GT 86's (Subaru BRZ) and all of the other Toyota's that I work on at the dealership. Cuts cooling system bleeding time down significantly. You can also put a coolant fill funnel that attaches to the radiator cap/neck to do a final check if you like. I tend to slightly overfill coolant reservoirs as I know it will burp a little more after the service.

[jeepguy06]

I've worked on EJ's as well. I think the best invention to come out for EJ's, FA's is the vacufill system that pulls the cooling system into a vacuum, prime the fill line shortly, pull another quick vacuum, then fill the cooling system. I ran into many an issue with EJ25's in the late 90s to mid 2000s outbacks. Fans would come on high speed and I only got cool air through the radiator. I had to burp the system multiple times. As for the VW Vanagons which I have also worked on, they have a bleed valve on the top of the radiator. Before the vacufill systems arrived we would raise the front of the Vanagons and burp the cooling systems that way until all of the air was out with heater on full hot. I have the Snap-On version where I work but AirLift was the first version I heard of when the tool came to the market. I use it on the occasional MR-2's that come in and the FR-S/GT 86's (Subaru BRZ) and all of the other Toyota's that I work on at the dealership. Cuts cooling system bleeding time down significantly. You can also put a coolant fill funnel that attaches to the radiator cap/neck to do a final check if you like. I tend to slightly overfill coolant reservoirs as I know it will burp a little more after the service.

I got the bucket set up that goes on the radiator cap on the fill resivor that's next to the intake manifold. I also had an extra hose line on the radiator u got and used it to bleed the air out of the front part of the system but will have to check it again.

Thanks for the ideas.