WTB Release Bearing Holder for 4spd transmission

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Tesc510
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WTB Release Bearing Holder for 4spd transmission

Postby Tesc510 » 07 Aug 2017 16:44

Hi everyone I'm doing an automatic to manual swap but I'm missing a release bearing holder. So I'm looking to buy a release bearing holder for a 4spd transmission.
Thanks

deano510
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Re: WTB Release Bearing Holder for 4spd transmission

Postby deano510 » 07 Aug 2017 19:10

I think you're referring to the collar that the throw-out bearing is pressed on to. There are 3 different heights and you need to know which one you need for your 4 speed tranny, they are: short, medium & tall.

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datzenmike
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Re: WTB Release Bearing Holder for 4spd transmission

Postby datzenmike » 07 Aug 2017 19:50

I think there are subsets within those even.

The part number for the 510 release bearing collar using the stock L16 and clutch is, 30501-N1601. Often after market clutches are generic not an exact match, so a collar is included.
"Nissan 'shit the bed' when they made these, plain and simple." McShagger510 on flattop SUs

Tesc510
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Re: WTB Release Bearing Holder for 4spd transmission

Postby Tesc510 » 07 Aug 2017 22:30

Yes that's what I'm referring to, Thanks for the info! I got an after market clutch kit and it did not come with a collar. I need one for a stock 510 4speed. How do I go about finding what size I need? Thanks for all the help!

Three B's Racing
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Re: WTB Release Bearing Holder for 4spd transmission

Postby Three B's Racing » 08 Aug 2017 06:30

The Collars are not matched to the type of transmission, only the clutch. It's all about the height of the pressure plates fingers when bolted to the flywheel. The 510 clutch is 200mm diameter and isn't listed here but someone has the collars dimentions.

225mmt-oBearingSleeves[1].jpg
225mmt-oBearingSleeves[1].jpg (70.4 KiB) Viewed 312 times
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datzenmike
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Re: WTB Release Bearing Holder for 4spd transmission

Postby datzenmike » 08 Aug 2017 16:50

Try the Nissan dealer. You never know.


Go to Google, hit Images, type in " chart of datsun 200mm release bearing collars " there is a chart at top of page. Because Photofuckit is being a douche I can't post it, but you can still see it there.
"Nissan 'shit the bed' when they made these, plain and simple." McShagger510 on flattop SUs

Tesc510
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Re: WTB Release Bearing Holder for 4spd transmission

Postby Tesc510 » 08 Aug 2017 22:48

Good point I'll try and find out what size will work with my clutch and try the dealer. I may post the size again here to see in anyone has a spare laying around.

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Re: WTB Release Bearing Holder for 4spd transmission

Postby 510rob » 08 Aug 2017 23:17

viewtopic.php?t=9382

also reference the chart with the pressure plate diaphragm height values

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Re: WTB Release Bearing Holder for 4spd transmission

Postby datzenmike » 09 Aug 2017 06:24

Image

That's the one at the top
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Re: WTB Release Bearing Holder for 4spd transmission

Postby 510rob » 09 Aug 2017 11:27

Mike, you are correct that that's the one at the top, but that's not the chart with the pressure plate diaphragm height values, is it.

Let's try this again. Take 2.

Here is the chart with the pressure plate diaphragm height values
datsun pressure plate comparison.jpg
datsun pressure plate comparison.jpg (35.99 KiB) Viewed 259 times

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zKars
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Re: WTB Release Bearing Holder for 4spd transmission

Postby zKars » 09 Aug 2017 14:12

Remember the rule of 92?
The distance from the flywheel friction surface to the back of the ears on the throw out bearing collar where the fork touches, has to be 92mm +/- a couple. Yes this means you have to buy the clutch first, bolt it to the flywheel, measure from the surface to the tips of the fingers, then figure out how much more to get to 92, then get the collar that fills that need.

Now I admit this is a 6 bolt flywheel rule, but I bet its dang close for a 5 bolt as well.
I have a bit of a stash of collars. Let me know when you know what length you need.

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Re: WTB Release Bearing Holder for 4spd transmission

Postby datzenmike » 09 Aug 2017 17:43

The OP was asking about the stock 510 and 4 speed. That would be 30501-N1601 for the release collar. I did say that a generic clutch supplier usually includes the correct collar. Why would they sell you a clutch for a 510 that doesn't fit the stock collar? The chart would be helpful if you ran a 200mm clutch from a later 710/610/A10 S10 or several others. He didn't say it was from one of those.



zKars wrote:Remember the rule of 92?
The distance from the flywheel friction surface to the back of the ears on the throw out bearing collar where the fork touches, has to be 92mm +/- a couple. Yes this means you have to buy the clutch first, bolt it to the flywheel, measure from the surface to the tips of the fingers, then figure out how much more to get to 92, then get the collar that fills that need.

Now I admit this is a 6 bolt flywheel rule, but I bet its dang close for a 5 bolt as well.
I have a bit of a stash of collars. Let me know when you know what length you need.


I have heard this also but 89.4mm. I'm willing to go with 'rule of 92'. You can bolt a 200mm Roadster PP to an L20B flywheel and the Roadster/510 release collar will work, so safe to say, 5 or 6 bolt cranks work the same. Other than the number of mount holes a 5 and 6 bolt flywheel are virtually the same.
"Nissan 'shit the bed' when they made these, plain and simple." McShagger510 on flattop SUs

Three B's Racing
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Re: WTB Release Bearing Holder for 4spd transmission

Postby Three B's Racing » 10 Aug 2017 06:17

They Do? I've never gotten a collar with any aftermarket clutch. Now I've gotten the throwout bearing but not the collar.
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Re: WTB Release Bearing Holder for 4spd transmission

Postby datzenmike » 10 Aug 2017 06:28

By generic clutch, I mean one the will fit a wide variety of makes and engines. This could have any diaphragm finger height and certainly won't fit an L16. To make this' one size fits all' pressure plate work, the correct collar is included with the kit.

Image
"Nissan 'shit the bed' when they made these, plain and simple." McShagger510 on flattop SUs

Tesc510
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Re: WTB Release Bearing Holder for 4spd transmission

Postby Tesc510 » 10 Aug 2017 16:09

The clutch kit I bought from rockauto didn't include the collar, and it seemed like the most complete kit. I'll measure the distance Saturday when I have a chance. Thanks for all the help! want to get my dime going again!


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