Freelance motorsports has their own coolant Seals. They look good on paper, but I can't find any reports of people's experience with them. Has anyone on here run them?

Freelance Motorsports SureSealsTM - Mazda 1986+ RX7 RX8 Coolant Water Seals 13B S4 S5 S6 N326-10-B71A - Freelance Motorsports LLC

 

its more than Mazdacomps price on a set of Mazda seals by about $10... on the risk/reward side these seem low risk.

 

Thanks for posting this, coolant seals are what failed on my car's original engine.

 

after how long?

 

Short story: the original engine was good for about 75k miles.

Longer story: I got the car in 2004, bone stock with 45k miles on it. It had the fuel and cooling system recalls done, but original engine as far as I know. I added a downpipe and a coolant temperature gauge soon after getting it. I kept notes that were OK but not great, and my notes say the original engine had around 72k miles when the car started consuming coolant and 77k miles when it first started overheating, this was in 2006. I limped it around for a while over the next couple years, adding an aftermarket radiator and standalone ECU to trigger the fans at lower temps was helpful. The car was barely usable at 87k miles, it would overheat and push coolant (and steam) out the overflow on long trips. I bought a cheap JDM engine and swapped it out soon after that.