2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

na Six Port Actuator Seal replacement

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Old May 9, 2022 | 11:57 PM
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na Six Port Actuator Seal replacement

Im looking for the rubber seal. Has anyone found a replacement seal? None available in mazdatrix or atkins

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Old May 10, 2022 | 09:48 AM
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@Spider2k found some on that fit on AliExpress, he might be able to find the part number for you.
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Old May 10, 2022 | 04:22 PM
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Originally Posted by WondrousBread
@Spider2k found some on that fit on AliExpress, he might be able to find the part number for you.
@WondrousBread thank you. I'll give him a message and hopefully find a part.
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Old May 10, 2022 | 04:43 PM
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Originally Posted by WondrousBread
@Spider2k found some on that fit on AliExpress, he might be able to find the part number for you.
which one did you end up using? i don't know which of the different ones i sent you worked.
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Old May 10, 2022 | 04:45 PM
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so i looked at my orders and i bought two different 8x14x4 and one 8x14x5. so try either of those sizes.
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Old May 10, 2022 | 08:04 PM
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Right, I forgot there were two sizes.

It was the shorter one that ended up fitting.
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Old May 10, 2022 | 09:01 PM
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Originally Posted by WondrousBread
Right, I forgot there were two sizes.

It was the shorter one that ended up fitting.
what should i search for at Ali express
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Old May 10, 2022 | 09:14 PM
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I posted it above
8x14x4 Viton Seal
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Old May 11, 2022 | 11:51 PM
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Originally Posted by Spider2k
I posted it above
8x14x4 Viton Seal
@WondrousBread I purchased 6 and would be here in 3 weeks.
what direction do you install them?
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Old May 12, 2022 | 06:45 AM
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Originally Posted by Trueno102
@WondrousBread I purchased 6 and would be here in 3 weeks.
what direction do you install them?
Good question, it's been awhile. I think I installed them with the flat side out.

One thing to keep in mind if your intake is still on the car is to not rotate the rods when installing. Make not of the orientation when you pull the rod out, and install it in the same orientation. I believe they only want to fit on one way, but better safe than sorry.
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Old May 25, 2022 | 01:54 AM
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Finally arrived. Will post once i get a chance to rebuild the lim
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Old May 25, 2022 | 08:31 PM
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High temp grease

Old seal. Flat side toward motor.



This waher does not seal or stay put completely. I think using permanent high temp threadlocker will keep it in its place.
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Old May 26, 2022 | 08:04 AM
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I didn't use anything on the washer. It gets sandwiched down by the top plate thing, and there are no leaks in my case.
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Old May 26, 2022 | 09:28 AM
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Seals are installed with the flat side out just like a crank or cam seal.
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Old May 26, 2022 | 01:43 PM
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Originally Posted by Spider2k
Seals are installed with the flat side out just like a crank or cam seal.
Thanks. Odd that the flat side was actually facing the motor. I have an extra lim which I could double check again.
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Old Aug 2, 2022 | 08:23 AM
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Thanks for this info, found them on Ali and ordered. Can i replace without removing the lim? really don't want to, but will if necessary.

disregard, I saw where @WondrousBread said if still on the car not to rotate the shaft. Shout out to @Spider2k for finding these.

Love this site for finding things like this. Its getting harder and harder to find parts. For some reason on the rear port, it back the screws out. Crazy. see my thread on it for a video.

https://www.rx7club.com/2nd-gen-gene...uator-1158116/

Thanks again.

Last edited by Mdhwoods; Aug 2, 2022 at 08:41 AM. Reason: added ubfi
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Old Aug 2, 2022 | 08:26 AM
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Originally Posted by Mdhwoods
Anyone want to sell me 2? also can i replace without removing the lim? really don't want to, but will if necessary.
If I can find them( no promises) . I have 2 giant racks of totes full of parts and I kinda didn't label anything.
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Old Aug 2, 2022 | 08:44 AM
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Originally Posted by Spider2k
If I can find them( no promises) . I have 2 giant racks of totes full of parts and I kinda didn't label anything.

see above, found them on ali, which by the sounds of it will be quicker then you locating.
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Old Aug 2, 2022 | 08:45 AM
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Originally Posted by Mdhwoods
see above, found them on ali, which by the sounds of it will be quicker then you locating.
Maybe! I'm a bit disorganized.
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Old Aug 15, 2022 | 02:57 PM
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Quick dumb question since my screws fell out and my clip was loose. What’s proper order? Seal, clip, washer bracket which is what I think. Or seal washer clip bracket which doesn’t seem correct to me.

tia
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Old Apr 22, 2024 | 07:17 PM
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Which way does the grooved side of the seal go

Originally Posted by Trueno102
Thanks. Odd that the flat side was actually facing the motor. I have an extra lim which I could double check again.
I think that the grooved side goes towards the outside of the engine.

If it is positioned towards the flat surface of the lim bushing it defeats its purpose!

The grooved face uses the gas pressure to push the thin part of the seal to push it onto the shaft. Making for a more tight seal!

What do you think?
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Old May 12, 2024 | 05:51 PM
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What grease to use during assembly?

Hi everyone
I found the black seals to replace the old ones, I forgot what type of rubber they are! My question is about what is the best grease to coat all the parts with?

One reply said "high temp grease", which is??? I have some moly grease, and some white lithium grease, which would perform better over time?

I am trying to do everything I can to prevent the 5th & 6th aux ports from sticking over time. During assembly is the only time that these parts will get lubricated, so I want to do the best I can.

I took two engines apart last year and on one of them the "C" washers were worn to pieces, and the other ones were only half the thickness of the groove in the shaft! The washers were in fine shape and the seals were all ruined. So, the order of assembly from outside to inside is: "C" washer in its groove on the shaft, round metal washer, then the rubber seal with the groove side towards the metal washer.

I am hoping that by using 1 oz. per gallon premix that these aux port components will stay functioning for many years.

Your input is appreciated, thanks!
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Old May 13, 2024 | 12:17 PM
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Originally Posted by Spider2k
Seals are installed with the flat side out just like a crank or cam seal.
Not on an NA air intake where there is normally negative pressure (vacuum) inside and atmosphere outside. Flat side goes toward engine.
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Old May 13, 2024 | 12:37 PM
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Originally Posted by gsmithrx7
Hi everyone
I found the black seals to replace the old ones, I forgot what type of rubber they are! My question is about what is the best grease to coat all the parts with?

One reply said "high temp grease", which is??? I have some moly grease, and some white lithium grease, which would perform better over time?

I am trying to do everything I can to prevent the 5th & 6th aux ports from sticking over time. During assembly is the only time that these parts will get lubricated, so I want to do the best I can.

I took two engines apart last year and on one of them the "C" washers were worn to pieces, and the other ones were only half the thickness of the groove in the shaft! The washers were in fine shape and the seals were all ruined. So, the order of assembly from outside to inside is: "C" washer in its groove on the shaft, round metal washer, then the rubber seal with the groove side towards the metal washer.

I am hoping that by using 1 oz. per gallon premix that these aux port components will stay functioning for many years.

Your input is appreciated, thanks!
I bought some Honda high temp urea grease for clutch components on my Acura because it's recommended in the manual (pivot ball, fork fingers, etc.), after changing the clutch again, I was surprised at how much was left and how good it worked, so I use it wherever and whenever high temp grease is called for (except brakes), regardless of vehicle manufacturer.

The stuff is pricy (dealer item) and the container has enough for maybe a hundred clutch jobs, stuff really lasts.

I know that silicone grease is prefered on disc brake slide pins, if your car is so equipped so, I would say it's relatively high temp.
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Old Jul 3, 2024 | 05:35 AM
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I got to do replace the actuatot seals on a different LIM and just want to let people knew that the C clip goes in front of the washer.
correct me if im wrong. The order should be on a n/a 91

seal flat part facing motor - washer - C clip outside



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