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  1. jdub

    Loosing coolant....Need help?

    I would check the radiator cap and pressure test the coolant system for leaks. But, most of the time when it does this: ::bhg:: A NAPA block tester will confirm the presence of exhaust gas in the coolant system and a BHG.
  2. jdub

    Putting my supra back together...

    Normally, I would agree. But, the water pump already has several other bolts holding it on and the stress/heat it's under is not that great. You are correct, a helicoil is stronger in aluminum. A drill tap is easier/cheaper to do...I'm sure it will get the job done.
  3. jdub

    Engine Light...?

  4. jdub

    got head back from machine shop with notch in it

    Dude - How many times/ways do you need to be told: DO NOT USE JBWELD.
  5. jdub

    exhaust manifold stud questions.

    Just buy the Toyota studs then...the $1.50 each is well worth it ;) You really do not want to go the hardware store route on these.
  6. jdub

    exhaust manifold stud questions.

    Use either Toyota OEM (new) or ARP with 12pt nuts & washers (hold on to your wallet). The stop on the studs is there for a reason. Your impact could have easily been the cause...galvanic corrosion between the steel stud and aluminum. The shop helicoiling all of the stud holes did you a...
  7. jdub

    exhaust manifold stud questions.

    Short answer: Annealing makes the head soft. 1) Most of the time it's when the motor overheats due to the various reasons that are common on a 7M. Compounded by the owners insistance on driving it. 2) A soft head will deform...warpage is one way of looking at it.
  8. jdub

    exhaust manifold stud questions.

    The reason the threads strip is the head is annealed...that makes the entire head junk.
  9. jdub

    exhaust manifold stud questions.

    M10x1.25, 52mm long. Threads are the same on both sides. Short (head) threaded side is 14mm long...Long (manifold) threaded side is 33mm long.
  10. jdub

    got head back from machine shop with notch in it

    You can create a high spot...getting it level will be very difficult to do on a machined surface.
  11. jdub

    headgasket spray with felpro?

    Permatex Copper spray...on a composite HG (like the Felpro), Yes. On a new MHG with the factory vitron coating intact, No.
  12. jdub

    Oil pump driveshaft retainer broken

    Depends on your plans for the car...if you're going to rebuild it anyway, might be time to do it. The shaft would have to break to contact a set of stock rods. Otherwise, I'd pull the shaft and inspect the bearing and pump drive gear. If they look good, replace the collar/seal and call it a...
  13. jdub

    Switching to synthetic?

    Like I said...read the stickies. (there is one that answers this question) SupraCentral pointed you to them in the thread that was closed. You need to do a bit of reading/research on your own to get a grasp on this subject...that will be obvious by the questions that are asked. The purpose of...
  14. jdub

    Switching to synthetic?

    Read this thread: http://www.supramania.com/forums/showthread.php?t=49245 Might want to read the stickies...what you think is a "synthetic" could easily be a hydrocracked dino oil ;)
  15. jdub

    advantages for using the NA oil filter stud on 7mgte?

    That plate is not going to do a lot for ya, unless you plan on keeping the filter on the stock head, block the cooler feed line, and plug the oil pan return...basically run the cooler off the sandwich plate. Take a look at the thread in post #2...conversion to a full flow, thermostat...