Is This A Stock Fuel Pump?

[hairdryer33]

In the process off changing pumps. Not sure if its stock but the round looking thing on top looks like a regulator which I haven't seen on many aftermarket pumps. Its been tampered with at some point as its got cable ties securing it.

[chiksluvit]

Looks like a gtr pump on Gtst cradle

[Dose Pipe Sutututu]

what a nice install (kidding)... should use hose pipe clamps, simple, tidy and fuel resistant

[Badgaz]

just of note...the angle of the fuel pump filter sock is important when replacing the r33 pump...right angle ones done work.

[hairdryer33]

Thanks guys. Yeah just a bit dodgy buy got me through 10,000ks no trouble but time to change. Right angle ones dont work? Do I just need one that goes straigh down? Im going to run a few strong rare earth magnets internally to clean up the crap, the filter sock had metal fillings around it!

[Badgaz]

Yeah I had to re use my one, the right angle ones don't fit in the space where the pump sits.

[hairdryer33]

Any ideas how to clean the filter?

[Badgaz]

I didn't bother, but I will ask for a price on a new one at Nissan when I get round to it.

[hairdryer33]

Ok no worries

[SargeRX8]

Im using a 90 degree filter in my 33. Works just fine even to the end of the tank.

[Badgaz]

Im using a 90 degree filter in my 33. Works just fine even to the end of the tank.

really? perhaps the holder puts it off on the right direction...mine was a deatschwerks and the holder made the filter sit the wrong way.

[scotty nm35]

Why would the filter sticking out of the fuel cause an issue, as long as the pump pickup is in the fuel you should be fine. The direction the sock sits should have minimal impact, but of course sitting flat on the bottom of the tank or just above would be best.

45 degree socks are cheap enough for this not to be a problem anyway.

[Badgaz]

It's because if the shape of the r33 fuel tank inside... It's shaped over the drive tunnel which creates a narrow space for the fuel pump to sit down into.

[hairdryer33]

I put a walbro gss341 in, runs heaps better however its on 1/4 of a tank and is making weird noises. Why? I used the filter off the gtr pump as it is 3x the size of the one supplied

[scotty nm35]

But it isn't as fine as the Walbro sock. Filtration is critical with the Walbro pumps.

[hairdryer33]

Any way to clean a dirty or blocked pump

[scotty nm35]

Nope, the gears inside are like oil pump internals, once something hard and incompressible goes through it wear will occur, then you may as well chuck it away.

It's only $100 for a genuine new one... If you buy from the right place of course.

[hairdryer33]

Ok cool, I ran a few litres through a bucket, it pumps fine and sounds like it did when I put it in, the high buzzing sound, but when its hooked up, its a low drone buzz sound when priming and afrs are way too lean everywhere. If it was stuffed it wouldn't pump fine out of car then go to shit in it? Ive changed fuel filter made no difference

[scotty nm35]

Through a bucket of what?

[scotty nm35]

Sounds like it's stuffed to me, can't pump at high pressure. Unless the pressure is set too high on your reg?