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It's just a hole in the bottom of the cover, if oil starts leaking within the cover you will be able to see if via tho hole, rather than it leaking internally on the belt and you never knowing about it. If you have oil there after topping off, you probably spilled oil while you were filling...

Pics of "welded bearings" or it didn't happen :D

Wow well I was pretty surprised to find what I did. All the spiral locks that managed to stay in were VERY loose... Either they are too small, the groove was machined too big, or the groove managed to wear out and allow the locks to loosen up. I don't remember them being like this at all when I...

:rofl:

Well I was thinking about throwing a manual shut off valve for the heater core into my truck for the summertime just to keep any chance of extra heat out of the cab. I remember that in the Supra (and probably other vehicles) the heater control valve never shuts off coolant flow 100%, and leaves...

Next time just remove the banjo bolt from the fuel filter instead of the line fitting as they seem to seize up pretty often/result in what you had happen.

Will update with mroe pics when I get it all taken apart. Right now I have only pulled one piston. The locks in the pan were mangled/broken. The engine has about 15k miles on it, and didn't begin smoking until about 1k miles ago. Before that, it ran perfect (and I drove it pretty hard almost...

http://www.youtube.com/watch?v=VZN5eujqFiI This is essentially how I put them in. Cant remember how tight the pin fit, I will pull #6 piston which appears to have no problems and inspect how tight the pin is between the locks.

Can't find any close up pics of the piston/rod assembled when I put it together. How exactly do they pop out? The clips were fully into the groove, I know that much, beyond that how can one improperly install them? Do they have to be rotated a particular way (like the end of the lock needs to be...

Here's a bunch of pics of #1 piston. Hard to tell, but it looks like it is cut "square". In a few of the pics you can see where the edge of the groove is basically gone which would allow the clip to pop out. I can only imagine that this happened after the lock came loose, but no way to tell...

I have a spare block, just do not want this to happen again, thank you for the offer though. On each piston, I installed one side spiral lock completely, then installed the rod/pin, then put the second lock in. They all were definately in 100%, was very particular about getting them in properly...

Look what decided to take a trip down to my oil pan... Can anyone explain how this happens?! 4 of 6 cylinders lost at least one wrist pin clip, and all at the same time?!

Well, I had done a pull in my car one day up to about 110 mph, and ever since that time the engine has been smoking from the exhaust rather badly. I had done plenty of pulls before without issue, but this time it seemed to cause something. Anyways, I took the motor apart and this is what I...

http://www.cygnusx1.net/Supra/gallery.aspx

Haha, maybe you cleaned all the carbon out of that engine. It's funny how California gets a rap for strict emissions, but Arizona is even tougher, well at least in Phoenix.

Thank you 3p for the help, much appreciated!

People that dont properly torque the pulley bolt is the cause. Lots of people just impact that puppy on and call it good, but it needs to be torqued. Once it comes loose a couple things happen. First the pulley itself gets messed up- the inside surface gets widened and scarred. Then the keyway...

OK now I am pissed...basically wasted 30 bucks on a test. I took it in this morning and it failed with almost identical numbers. W T F! Take it home and throw the scope on it, SAME rich command as before... great. So I started jiggling things and come to find out not only was there the RPM...

Yeah I figured that's where the confusion was, edited my post minutes before you replied. I believe the body of the igniter is grounded where it is bolted into the distributor. Going to get the idle mixture tuned in tomorrow morning and back off to the emissions facility, I will hope for the...

Its a beautiful thing :D Not sure if you are looking at the schematic right or not, or maybe I am not, but the igniter is driving the coil. The coil has no ground unless the igniter supplies it. The body of the igniter is grounded which isn't shown in the diagram, maybe that is where the...