Yeah typo on my part.
I would choose JIC over AN as well.
Steel fittings which are used on everything from tractors to earth movers.
Aluminum AN stuff is pretty over-hyped, basically paying for the name & the appearance.
If a build was done on a brand new head this insert would probably not be necessary.
Since most of the heads around these days have lost a great deal of their hardness, this modification helps.
Not to mention the increased clamping load that is requested of the head now with aftermarket...
The point of the insert is to prevent the Al head from collapsing in creating a smaller ID. --> <--
The machining & press fit of the insert makes the difference.
Another different washer on top only isn't going to prevent it.
Similarly, there is a reason Aluminum wheels use steel inserts...
You buy them from Toyota.
Find the Part #'s
http://www.cygnusx1.net/Supra/Library/EPC/291220/catalog.aspx?F=4802&P=1
http://www.cygnusx1.net/Supra/Library/EPC/291220/catalog.aspx?F=4804&P=1
Go to your local dealer or buy online from 1 of a hundred different Toyota OEM websites.
Honestly they really messed up the manual IMO.
ONLY use pages RA-35 - RA38 for setting preload.
They make much more sense, since the carrier is removed from the case when they spec the pinion bearing preload.
Make sure you notice the difference between use and new bearings as well.
Pinion Preload is only for the Pinion Bearings.
Total Preload is referring to the Carrier Bearings only.
They should have re-worded it IMO.
So the reading you get from the total preload is actually the pinion + the carrier combined, since you are turning both at once.
Just subtract the pinion...
Rolling torque is still a useful measurement to be taken even if its not called out in the manual.
Typically rolling is 2-3 in/lbs less than starting torque.
How much are you changing the shim stack per try?
Usually takes a couple big changes to fall within 10-15 in/lbs.
From there you want to make very small changes < .001"
Torque the pinion nut to a minimum of 150 ft/lbs & measure the preload with an in/lb wrench.
If you don't have one, find one or...
Design and fabricate a bracket, use the cable.
http://www.wilwood.com/PDF/PressReleases/pr153_wilwood_MC4_mechanical_parking_brake_caliper.pdf
Viper Uses one stock.
http://www.edmunds.com/car-reviews/track-tests/2009-dodge-viper-srt-10-suspension-walkaround.html
Spend a boatload and build a...
Your plan is about right.
Though I would not use the old pinion front bearing to set your preload then switch to the new one and expect it to stay the same.
Plan on disassembling the pinion at least a few times to get the preload within spec with your in/lb torque wrench.
Don't forget to...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.