www.RX7fb.com

I checked it on the alignment rack today and everything was in the green. The only thing I adjusted was the toe by .3 degrees. That pleases me because it shows this car hasn't been hit so bad that anything got tweaked.

That's a lovely fb you have there. Clean as

So I replaced all the bushings in the back with polyurethane. Car feels good... more responsive and planted. My worry that poly in the rear would make the car feel twitchy or oversteer-happy appears to have been exaggerated. However it does make it more obvious the car is screaming for brake and tire upgrades. I'll try and address those issues before the long trip to so cal next month for Sevenstock.

I'm loving that picture! Thats good to know. I would like to do my bushings soon too aye

So earlier today the FB wouldn't start. Originally I thought it was flooded, and upon removal of the plugs this is what they looked like, after about 1,000 miles on the new rebuild.



Trailing


Leading


I replaced them with brand new FC plugs instead, I figure they should hold up a little better than that. However, replacing the plugs didn't solve the no-start issue, and than I realized I wasn't hearing or smelling any signs of fuel being burnt. So I think the issue is probably lack of fuel.

I'm gonna check the fuel filter but I may be facing a bad fuel pump I'll update again after I get a chance to remove things and take a look...

Won't start cont...

So after tapping on the fuel pump (its externally mounted not in-tank) the car starts up proving that the pump
is failing.

I've ordered another pump but it's not an OEM replacement (they want $340 for those) so there's no guarantee it'll fit and/or work properly. We'll see... *crosses fingers*

Ok so here is a pic of the fuel pump I ordered off of Ebay (On the bottom). You can see that its inlet pipe on the right side is bigger in diameter than the Mazda pump (On the top). The outlet fittings on the left also have totally different threads. Both of these issues make the Ebay pump incompatible with my car without a lot of extra work to adapt it.

I have no idea how they can say that pump is a direct replacement for the Mazda pump... but that's what their add said. They even listed the Mazda pump part number. Regardless, I noticed the Ebay pump leaks around the seam where the casing is crimped around the cap making it totally useless. Good thing it was cheap so I didn't get ripped off too badly.



However it is not all bad news. I found this in the inlet hose from the fuel tank to the pump this evening. As you can see it is a tiny inline mesh fuel filter. It looks partially clogged in this pic, but it was worse when I removed it. I think this little guy might have been the problem all along?!



I won't know for sure until a couple days go buy without any starting issues. But after I put the original pump back in and adapted a brand new FC fuel filter in place of the old FB fuel filter it fired right up.

that'll be a good result if it solves the problem.... well done on finding that filter... I wonder how many people don't even know that it's there? The carb models also have 2 tiny mesh filters the size of a finger nail that aren't listed in the workshop manual.... I spent 3 weeks once trying to get a car to run until I discovered those filters and it had been to 3 repair shops before me who couldn't get it running and gave up.Any chance you could put a short description of exactly where you found it in the 'Fuel, exhausts & emission systems' section of the forum? That might be very useful to someone suffering fueling problems on a GSL-SE and that will probably be the first place they look for help.

Hope it sorts your problem

cheers,
Ian

Ian you talk about these filter. Two different are possible.

ian65 wrote:Any chance you could put a short description of exactly where you found it in the 'Fuel, exhausts & emission systems' section of the forum? That might be very useful to someone suffering fueling problems on a GSL-SE and that will probably be the first place they look for help.

Hope it sorts your problem

cheers,
Ian

Sure, I'm happy to help. I just added a thread to that section as you suggested. Here's a link... viewtopic.php?f=33&t=1640