oil pump?

[1988nissan300zx]

ok first question is do you have to pull the clutch and everything on that side to replace the oil pump? reasoning for asking is because i notice that the gear on the oil pump has a little play in it when i tilt it back and forth. which is my next question is that normal? thanks!

 

[1988nissan300zx]

bump. really needing some info before i start putting it back together.

 

[lbjamm]

I think there is a clearance spec but IDK what it is. Should be in the manual.

 

[duneracerweston]

I can't remember off the top of my head but I think you at least pull the gears off the crank...

I've always had the cases split when I changed pumps so I'm no help there

 

[Gen1Pat]

I can't remember off the top of my head but I think you at least pull the gears off the crank...

I've always had the cases split when I changed pumps so I'm no help there

Ditto^^^ Oh, wait! I have a spare bottom end without the clutch cover on it. I can look when I get the chance.

 

[1988nissan300zx]

ok that would be awesome. i noticed the little play in the gear and figured better look into that before i put it back together.

 

[Gen1Pat]

Are you talking about play between the plastic pump gear and the metal gear that drives it? That is called backlash, and is normal. There is only a certain amount allowed, however, so it may just be best to replace the ole girl.

 

[1988nissan300zx]

no its the pump gear its self. ill get a video up in a little bit.

 

[1988nissan300zx]

here is a video its more like a wobble i guess. not so good quality but i think you can get the idea.

http://s1299.photobucket.com/albums...ction=view&current=1031132132_zpsa671ea17.mp4

 

[Gen1Pat]

Hell just replace it. lol

 

[1988nissan300zx]

what all do you have to take out/apart to change it?

 

[Gen1Pat]

Pretty certain you have to take the drive gears off the crank so the pump body clears it. Then it's just 3 Phillips heads fasteners and the pump comes free from the case. Oh, you will need to get the oil pump gasket as well.

 

[1988nissan300zx]

so do you really think it needs replaced? just wasn't really wanting to take those gears off, but for peace of mind and the fact that i am right there kind of makes me want to, but also dont want to something i don't need to do.

 

[lbjamm]

FWIW do whatever gives you peace of mind. If I was worried about it, I would prolly replace it.

 

[drknight77]

That's a good bit of wobble, replace it, I'd hate top hear you having to tow your quad off of the trail for a part that costs around $20...

 

[duneracerweston]

Oil pumps are close to 120$ bro...

Change it. It's worth it and will last you another 2,000 hours. Or until the rod bearing goes lol.

They all have wobble to some degree it's not a steel on steel machined fit. Hell the part that splines it is about the size of a over grown paper clip..

 

[drknight77]

I meant the gear, assuming that is what is wobbling on the oil pump shaft.

 

[alex456123]

Nope the shaft moves within the housing.

 

[1988nissan300zx]

yeah its moving the whole shaft in the pump housing its self. so looks its getting a new oil pump. now for some instructions on how to do it would be much appreciated cause i dont have a manual. thanks!

 

[drknight77]

gotcha, thought he said the gear was wobbling. carry on!