Royal Purple Tranny/Diff Fluid Swap
#26
Question: What do I need to swap the transmission and diff fluids, other than the four (six?) bottles of RP? I saw some "crush washers" on Rosenthal mazda's site, is that the same thing or is that for motor oil? And is there anything else I need?
I was hoping to get this + clear corners + strakes all in one order to save on shipping.
PS: Do not leave the bottles of RP gear lube in your trunk. They will leak, and your interior will give off a subtle petroleum funk every time you get in.
I was hoping to get this + clear corners + strakes all in one order to save on shipping.
PS: Do not leave the bottles of RP gear lube in your trunk. They will leak, and your interior will give off a subtle petroleum funk every time you get in.
#27
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Originally Posted by BaronVonBigmeat
Question: What do I need to swap the transmission and diff fluids, other than the four (six?) bottles of RP? ......(
rx8cited
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See the thread rx8cited gave, but here is a concise list of what you need for diff and tranny refill:
- 4 bottles RP
- 2 lengths of 1/2" clear tubing (5-6 ft.)
- Utility knife, for trimming tubing as needed
- 2x small plastic funnel
- ratchet
- short ratchet extension
- 23mm socket
- 24mm socket
- oil catch pan
- rags, lots of rags
- 2x Crush washers 9956-41-800 (diff)
- 2x Crush washers 2Y601-17-361 (trans)
#29
or a little pump, similar to a big shampoo or soap bottle. Super cheap and very easy !
https://www.rx8club.com/series-i-tech-garage-22/changing-fluids-%3Deasy-fun-37600/
https://www.rx8club.com/series-i-tech-garage-22/changing-fluids-%3Deasy-fun-37600/
#30
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I used a pump once with my RX-7. It seemed like the pumping to oil movement ratio was like 8,000:1. A whole lotta work...It was probably just a crappy pump, but in any case I found the hose/tubing and funnel to be super easy with no arm workout involved. Some other folks swear by the pumps, though. Different strokes for different folks (pun intended). :D
#32
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Limited Sip Differentials and Synthetics
Maybe my info is out of date, but a few years ago when putting synthetic in my diff I learned that if you have a clutch type limited slip it was important to use a synthetic designed for limited slip differentials—I believe the term used was “friction modifier.”
Anyway, the concern was the synthetic was so slippery that it would reduce the effectiveness of the limited slip diff by causing too much slip in the clutch packs which need some friction for them to work correctly.
I don’t know what type of limited slip the 8 has or if this info is even relevant with synthetics anymore, but I thought I would throw it out there just in case.
Anyway, the concern was the synthetic was so slippery that it would reduce the effectiveness of the limited slip diff by causing too much slip in the clutch packs which need some friction for them to work correctly.
I don’t know what type of limited slip the 8 has or if this info is even relevant with synthetics anymore, but I thought I would throw it out there just in case.
Last edited by RotaMotion; 09-06-2004 at 04:49 PM.
#34
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You have the same part number for both differentail crush washers. The 45 minutes brillo and i spent talking with the mazda parts dept came up with a different answer. Mind you I have not done the work as the crush washers are being ordered.
Part numbers I got where...
2 y601-17-361 for tran
1 9956-21-800 for diff
1 9956-41-400 for diff
Part numbers I got where...
2 y601-17-361 for tran
1 9956-21-800 for diff
1 9956-41-400 for diff
Originally Posted by B-Nez
See the thread rx8cited gave, but here is a concise list of what you need for diff and tranny refill:
- 4 bottles RP
- 2 lengths of 1/2" clear tubing (5-6 ft.)
- Utility knife, for trimming tubing as needed
- 2x small plastic funnel
- ratchet
- short ratchet extension
- 23mm socket
- 24mm socket
- oil catch pan
- rags, lots of rags
- 2x Crush washers 9956-41-800 (diff)
- 2x Crush washers 2Y601-17-361 (trans)
#35
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Originally Posted by RotaMotion
Maybe my info is out of date, but a few years ago when putting synthetic in my diff I learned that if you have a clutch type limited slip it was important to use a synthetic designed for limited slip differentials—I believe the term used was “friction modifier.”
Anyway, the concern was the synthetic was so slippery that it would reduce the effectiveness of the limited slip diff by causing too much slip in the clutch packs which need some friction for them to work correctly.
I don’t know what type of limited slip the 8 has or if this info is even relevant with synthetics anymore, but I thought I would throw it out there just in case.
Anyway, the concern was the synthetic was so slippery that it would reduce the effectiveness of the limited slip diff by causing too much slip in the clutch packs which need some friction for them to work correctly.
I don’t know what type of limited slip the 8 has or if this info is even relevant with synthetics anymore, but I thought I would throw it out there just in case.
rx8cited
Last edited by rx8cited; 08-30-2004 at 06:00 AM.
#37
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Originally Posted by Genom
I followed David at RP's advice and put in Maxgear on both and what a diference. Tranny is much quieter and feels a lot nicer.
#38
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Originally Posted by rev-2-9k
You have the same part number for both differentail crush washers. The 45 minutes brillo and i spent talking with the mazda parts dept came up with a different answer. Mind you I have not done the work as the crush washers are being ordered.
Part numbers I got where...
2 y601-17-361 for tran
1 9956-21-800 for diff
1 9956-41-400 for diff
Part numbers I got where...
2 y601-17-361 for tran
1 9956-21-800 for diff
1 9956-41-400 for diff
#39
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Originally Posted by B-Nez
That is interesting. I forgot to compare the old ones before I tossed them (was paying by the hour to use the lift). Has anyone else successfully used the same part# for differential washers? So far, after 2 days of flogging I have aboslutely no leaks whatsoever.
rx8cited
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