Pouring gear oil into the shifter turret
Is this a common practice? I ask because it was mentioned in the write-up I read for rebuilding the shifter (which I recently did). I'm going to put new fluid in my transmission and diff soon anyway, but the issue is that I barely have enough fluid as it is, assuming I'll need to fill both to their specified capacity. Does draining the transmission normally also drain any fluid that was added via the shifter turret? I assume not since that's not where you're supposed to add fluid. I have no idea how old it is or how much is in there, but it's obvious to me that someone once poured fluid into the turret since it was on my old shifter bushings, and I can see some by looking down into the opening. I could always buy more gear oil, but it would have to be from a different brand since the stuff I have is Neo 75w90.
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the oil in the shifter thing and the oil in the transmission dont see each other. siphon out the old shifter oil and pour new of that neo in there. not too much though. keep in mind it will get hot and expand.
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Yes 75w-90 gear oil is required. Page J-62 of the FSM. It also directs you to grease the shifter ball socket. Just be careful that you don’t overfill. This is also covered in the FSM but can generate questions for first-timers... TWO drain plug (C and B), ONE fill (A). Probably not necessary but I use a little Teflon tape. And be careful not to go crazy tightening the plugs, especially two pipe threaded ones. Leave the socket-head plug alone. http://i1126.photobucket.com/albums/...pscede246e.jpg |
BTW the fill plug and the drain plug that doesn't have the crush washer needs some Teflon tape on the threads. If you look Mazda used that from the factory. Scrub off the old tape so the threads are nice and clean, wrap with new tape, good to go. If you don't you can get a seeping leak at those plugs.
Not sure if the shop manual says how much gear oil to put in the shifter hole, it shouldn't be much. Dale |
Originally Posted by Sgtblue
(Post 12245302)
And be careful not to go crazy tightening the plugs, especially two pipe threaded ones. Leave the socket-head plug alone.
Originally Posted by DaleClark
(Post 12245321)
Not sure if the shop manual says how much gear oil to put in the shifter hole, it shouldn't be much.
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Originally Posted by Mr357
(Post 12245356)
It's somewhere around 80cc. I don't understand why they didn't use milliliters.
1cc = 1mL I suspect that they used cc instead of mL because you would use a syringe to measure and squirt the oil in the shifter well. Syringe volumes in the medical profession were traditionally referred to as cc's. Probably more than you wanted to know. ;) |
Awesome, another excue to go under the car... good info.
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For the sake of anyone who might reference this thread, I checked the FSM again and it says to use 80 - 95 cc of fluid which of course is 80 - 95 mL or 2.7 - 3.2 oz.
https://cimg3.ibsrv.net/gimg/www.rx7...e1eeab95ae.png |
FYI the amount above is with the back end of the trans DRY. It won't drain out doing a regular gear oil change, only if you opened the back half of the transmission up.
Dale |
Originally Posted by DaleClark
(Post 12245564)
FYI the amount above is with the back end of the trans DRY. It won't drain out doing a regular gear oil change, only if you opened the back half of the transmission up.
Dale |
There should be enough room to get in there to siphon out the gear oil. A smallish tube should get in there fine.
Might even use a gear oil pump to get it out of there. If you don't get all of it I wouldn't sweat it too hard, the oil in the turret doesn't do much and isn't under a lot of load. Dale |
Originally Posted by DaleClark
(Post 12273876)
There should be enough room to get in there to siphon out the gear oil. A smallish tube should get in there fine.
Might even use a gear oil pump to get it out of there. If you don't get all of it I wouldn't sweat it too hard, the oil in the turret doesn't do much and isn't under a lot of load. Dale I do intend on using a gear oil pump for my diff and transmission fluids as well so ill see if that works in the control case. |
good info..
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Just to follow up for the sake of future readers:
I was able to suck out the old oil in the control case from the top with the shifter assembly out as Dale mentioned. I used a syringe similar to link below to both extract and then replace with new oil. Note that you suck out the oil from the front and the back of the area that houses the shifter bushing. www.amazon.com/gp/product/B00J26U3R8/ref=oh_aui_detailpage_o04_s00?ie=UTF8&psc=1 |
Would pouring oil into the shifter turrett help notchy gears?
I was wondering cause I currently have a notchy 2nd gear which according to other relevant threads could be due to i) wrong gear oil (currently using RedLine) or ii) synchro gone bad. |
If it's just on one gear, then the notchiness is probably internal. Changing the shifter reservoir oil won't help. And IMO what type or brand of oil goes in there isn't critical. Just don't forget to grease the pivot ball and lower bushing.
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