hello i just found out that my 88 rx7 motor has a blown water seal not sure yet which one but i am just wondering if i can get some advice on this....should i replace the motor or rebuild the one i currently have i am pretty short on cash so cheaper the better right now also the motor is a stock 13b

 

Theoretically if you take the engine apart, remove the seals, replace your water seals, and then reinstall the rest of the seals in the exact same places that they came from in the exact same orientation, you'll be fine. Keep in mind you will still have an engine with the same amount of wear and mileage that you do now so you won't do anything for the longevity of it. The key to doing it this way is to keep everything where it is. Don't put an apex seal in another slot somewhere. Exactly the same! Keep in mind this way still isn't recommended but if you have no choice and can only afford a new water seal, then this is how you should do it. Be methodical. Don't try to port it or do anything else.

 

Get your existing motor rebuilt, preferably by someone who knows what they're doing. Jumping into the deep end of the pool and trying an engine rebuild without the proper tools and mechanical ability never ends well.

 

^ +1

 

Rebuild it. O-ring kit. Front main oil seal. Rear main oil seal. 12 S6 corner seal springs. 12 corner seal insert rubbers. Front cover gasket. Pilot bearing and dust cap. I think that will set will you back about $300 provided nothing else is out of spec. Only way to know is to take it apart and check the wear surfaces.

http://atkinsrotary.com/store/produc...cat=624&page=1

 

thanks for the advice i found a 13b fuel injected motor for 300 at the junk yard with a 90 day warranty on it and i am going to put that into the car and take the old engine out and rebuild it and put the used one in my rx7