A/C Clutch bearing feels dry. Replace the clutch and bearing or just install a new compressor?

[flintknapper]

Ordered and picked up 2 packages of 3 shims from the dealer tonight + we already had 2 loose shims from the SanTech kit. I should have 8 shims total. It was a bit tight this evening. Need to add shims in the morning. I'll be looking for an air gap that is about .020"

Exactly right.

 

[abuck99]

So, seal colors are arbitrary. That chart won't apply across brands and is not industry standard. FAG, Barden, Koyo, INA, Timken, etc will use whatever colors and sometimes not even specify a color for certain product lines. There may be a certain spec that calls out colors for uses, but unless that bearing is made to that spec, the colors don't mean anything.



There is an incredible about that goes into a bearing and in our non-critical application there are going to be quite a few options that will work... may have an extra ball, may have a different ball grade, different seal geometry, etc etc. Also, bearing manufacturers will often part mark with whatever the OEM asks for... so Toyota has the option of getting a specific designation marked on all of the bearings, driving users to OEM vs bearing suppliers.

I am also going to use this opportunity to drive home that over filling a bearing with grease will lead to over heating and premature failure! ~30% infill is typically sufficient... more infill is OK the slower the application.

Thanks for the good insight.

 

[JunkCrzr89]

So, seal colors are arbitrary. That chart won't apply across brands and is not industry standard. FAG, Barden, Koyo, INA, Timken, etc will use whatever colors and sometimes not even specify a color for certain product lines. There may be a certain spec that calls out colors for uses, but unless that bearing is made to that spec, the colors don't mean anything.



There is an incredible about that goes into a bearing and in our non-critical application there are going to be quite a few options that will work... may have an extra ball, may have a different ball grade, different seal geometry, etc etc. Also, bearing manufacturers will often part mark with whatever the OEM asks for... so Toyota has the option of getting a specific designation marked on all of the bearings, driving users to OEM vs bearing suppliers.

I am also going to use this opportunity to drive home that over filling a bearing with grease will lead to over heating and premature failure! ~30% infill is typically sufficient... more infill is OK the slower the application.

 

[Somebodyelse5]

View attachment 2876922

it’s as if it’s part of my job or something

 

[OwnerCS]

Ok. It's all shimmed up. It took two Toyota shims and one or the thin SanTech shims to hit .020 on the nose.

On to the other project along with some work for work. This holiday is going to be too short.

It spins like new. No rubbing. Running the feeler gauge at .020 around the surface.

 

[abuck99]

FWIW Here's picture of the special tool (bolt) for pressing off the pressure plate-

One could prob make this tool estimating a 12mm x 50-60mm; then grinding off 25mm+/- of thread.

07112-66040

Then to remove the pulley so you can replace the bearing- the FSM is showing tapping the pulley off with a plastic hammer- not sure how that would work based on the tight working area.

 

[OwnerCS]

FWIW Here's picture of the special tool (bolt) for pressing off the pressure plate-

One could prob make this tool estimating a 12mm x 50-60mm; then grinding off 25mm+/- of thread.

07112-66040
View attachment 2877924

Then to remove the pulley so you can replace the bearing- the FSM is showing tapping the pulley off with a plastic hammer- not sure how that would work based on the tight working area.

Thanks Andrew. That is a "Special Service Tool" that will be helpful to include in the new thread with pictures.

I'll start a new thread in a couple of days with some good pictures. My real job is taking priority today and tomorrow.

Links

07112-66040 Echo - Toyota Tercel 1996 Repair - Toyota Service Blog

1. REMOVE COMPRESSOR See page AC-38 a USING SST and socket wrench, remove the shaft bolt. SST 07112-76050 Torque 14 Nm 140 kgfcm, 10 ftlbf b Install SST to the

www.toyotaguru.us

OTC Toyota 07112-66040-01 Pressure Plate Remover - Tillman Tools

Best Deals on OTC Toyota 07112-66040-01 Pressure Plate Remover at Tillman Tools - mechanic supplies, tools and body shop parts

www.tillmantools.com

 

[OwnerCS]

As usual, the cell phone seems to favor high frequencies. It sounds much better than it did before the bearing and pulley replacements.

The clutch cycling seems to be perfect. I took it out for a spin and the old fan bracket must have been pulling heavily on the belt. It feels frisky again.

 

[JungleRiver]

Old thread but anyone have luck sourcing a clutch kit? I see bearing sources in the thread but none for the clutch, unless I missed it?

 

[Malleus]

Other than this?

 

[JungleRiver]

Other than this?
View attachment 3832974

I guess I'm showing my lack of skills with computers and ac units all at once lol. Looks like that'd do it, but I don't know where you got that screenshot from?

 

[nissanh]

I guess I'm showing my lack of skills with computers and ac units all at once lol. Looks like that'd do it, but I don't know where you got that screenshot from?

Please go to partsouq.com and enter the VIN / Frame number
The search parts diagrams.

If you decide to replace the bearing, do NOT ever use Chinese unbranded crap. Those last like 10K Km's. I have used NSK bearings : 30BD5222, same for all toyota's Corolla, 4runner, Hilux etc.,

See this Thread: https://www.toyota-4runner.org/3rd-...ressor-bearing-idler-bearing-replacement.html

 

[Malleus]

^this. NP; before I knew what I know, I didn't know either.

PartSouq is (somtimes) helpful. Toyota EPC is very helpful.