Matsuda FD3 RX-7 GTフェンダー Since 1992 I've been a dedicated enthusiast of the Mazda RX-7 FD
Showing posts with label Rebuild. Show all posts
Showing posts with label Rebuild. Show all posts
Gearbox issues
Stripped down my gearbox to see what third looked like after I broke it, lots of splines in the pan… The gears have seen better days! Looks like thats a bin job then…Running!
Engine all back in, started first time too!!Rebuild 2012
Well after getting my car back together after the winter I found it wasn't starting from cold very well, and when it did it would only start on one rotor! I was hoping it would just be a plug lead that was not seated but after cranking with the plugs out I found coolant. I did a quick champagne test and I also got many bubbles which concluded my water seals had gone or I had a warped plate. It would hold pressure when cold but as soon as it got warm I would get coolant in the front housing.I spoke with Jay who agreed the engine would need to come out for a rebuild so I was left with an empty bay for a couple of weeks whilst it was rebuilt. You can see my new front subframe in gold and the new coil relocation bracket I made whilst I could get in there!
I got the engine back a couple of weeks ago, it turns out the front housing was warped! So I got a new one for piece of mind and had it ported out to match the other housing, plus a bit extra on both for good measure!
So I'm almost there putting it all back together, will just need a tweak on the map since I've gone with a parallel fuel setup.
Engine back!
Engine dropped back in!
Water temp issues
After trying various things to reduce the water temps and bleed any air out of the system it was decided the only route to take was removing the engine and inspecting the internals. Jay and Stuart came out in the evening and worked like a pair of Ninja's to remove the block from the car.Upon inspection Jay discovered that the rear rotor housing had a hairline crack along the leading spark holes thread! So the housing was replaced along with all side seals and springs. Now I just need to reinstall the engine and put a few miles on the engine to bed the new seals in.
Rebuild first start
Finally got the chance to turn the key on the new engine! It slowly cranked into life and sounded awesome! I started it with 10's all round and didn't need to bump start which was a result too!Engine back in
Back in the engine bay, its starting to look more like a car again! I'm eager to turn the key and get some milage on the new engine.
Rebuilt engine
The engine is back from being rebuilt! Big thanks to Jaydee engines!

Rebuild progress
The engine build is almost complete (Along with some new porting)!...It turns out I had four side seals fail, no wonder the car had issues starting.

Engine pull
Whilst doing the electrics it seemed a good idea to have the engine looked at. It had issues starting from hot last year so I felt it was best to examine before further problems developed.





Some pics of the rebuild and single turbo conversion that was put on the FD after I had a waterseal faliure. A hose had come off the AST tank causing the engine to become so hot it even warped one of the end plates. I had a very large custom streetport and a TA45 HKS turbo along with a 50mm wastegate added by Jason Dullforce, who mapped the car too! He has been one of the most helpful people I've met!
Mazda FD3S Time Attack




