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LOL! This mod never made any sense to me either!

Twigger, what you describe is exactly how mine used to work. When its hot out and stuck in traffic the fan roars as the revs go up, and after a cold start it roars for a few seconds then frees up. Problem is now mine never seems to free up, even when cold. It sounds like a big 18-wheeler!

The fluid only controls the degree of lockup between input and output. If you have freeplay, then the bearing is likely shot. I haven't heard of anyone rebuilding the bearing on these things. Are you sure its the fan clutch bearing and not the water pump? I refilled my clutch per the...

Those are Toyota parts! .... and I gave you the Toyota part numbers for the bolts and studs!

I don't see how you can measure shaft play with the turbo on the car. Sure, you can measure axial runout, but radial runout requires the oil lines to be removed from the turbo and a dial gauge placed into the CHRA through the oil feed galley. What is your axial runout?

Some comments. Buy this stuff online from Champion. 04112-42023 $244.50 Engine valve grind gasket overhaul kit 90116-10025 $0.82 $5.74 7 cylinder head to exhaust manifold stud 90179-10128 $0.92 $6.44 7 cylinder head to exhaust manifold nut Mike Bringle's Cygnus site lists all the...

Yeah, I'm surprised. Trying to think if it was anything I did, but you know, they sat in the box for two months, then I plunked them in, ran the fuel pump for a couple of minutes to check for leaks, then let them sit another month. Fired it up and was missing on two cylinders, then one un-stuck...

4th Gen Fbody (Camaro, Firebird..etc) OEM fans are almost a perfect fit I am told (use two).

It was missing, narrowed it down to cylinder #1 by pulling plug wires and listening to the engine. Plugs are brand new and lots of sparks flying, so ignition is okay. Then used a stethoscope to listen to each injector. #1 was silent. Pulled the injector connector and checked injector...

Thanks for the advice. Seems like the best course of action is to send them back to RCE... what a PITA!

One of my recently rebuilt injectors from RC Engineering is stuck shut. There was actually two but one fixed itself after about 10 minutes of idling. Before I pull the rail and send the injector back to RCE, I thought I might try running 2A at 6V DC through it to see if I could simulate WOT and...

Sounds like valve noise to me too. Check your bearing caps see if they are all torqued down okay to 14ft-lbs.

Maybe this is obvious, but that 116.00 mm number is the head thickness from cam cover deck to combustion deck.

If its getting power and is mechanically stuck, then you will see your headlights dim when you try to crank. If you headlights stay bright, then the starter is not getting power. As JJ said above, pull off the small blue/black wire going to the starter solenoid connector and jump 12V...

PPS was on all 89+ supras in north america.

Correct, the non-CA cars have this unused connector but it is taped to the harness right beside the starter.

I've lived in LA for a while. When I first came 99% of the time you could not see the mountains 5 miles away and some days the sky was green!!! Today, its more like 1% of the time you cannot see the mountains. Emission regs here have made a huge improvement in the quality of life. Rant over...

On my car it goes nowhere. On California spec cars I believe it goes to the EGR temp sensor (black-yellow and brown wires).

I recommend using Mopar Combustion Chamber Cleaner from any Dodge / Chrysler dealer. Spray it on an let it sit for a night. That black stuff will just wipe off. Rinse and Repeat. The smell is really bad though (but better than gas)!

I'll second that. My front clunk on braking was the lower ball joints.