66 TriPower Resto

[eskimonj]

I picked up a 66 tripower, actually bought the whole motor. It had been sitting for 10+ years in a garage with a roof full of holes. Everything is very rusty.

Here is my problem, the carbs have cleaned up nice so far, but the throttle plates are big time stuck. I have soaked in carb cleaner for over a day. I now soaked in WD40, but still no movement. Any suggestions? :confused: :mad:

[eskimonj]

I picked up a 66 tripower, actually bought the whole motor. It had been sitting for 10+ years in a garage with a roof full of holes. Everything is very rusty.

Here is my problem, the carbs have cleaned up nice so far, but the throttle plates are big time stuck. I have soaked in carb cleaner for over a day. I now soaked in WD40, but still no movement. Any suggestions? :confused: :mad:

[6567GTO]

Try "Liquid Wrench". It might do a better job on rust.

[Robert Williams]

Eskimo, Performance years has a rebuilding service, they can help you with the frozen bases. Most of the time i install new throttle shafts if they are frozen. When you reassemble the front and rear dumpers you have to have the throttle plates dead nuts on. They have to compleatly seal the bores no air leaks. If they leak air the engine won't idle. You can also call Paul Spotts or Mike Wasson they restore tri-powers and do excellent work. Good luck with that tri-power and be careful with the carburetor's they are very hard to find. http://www.spottsperformance.com http://www.pontiactripower.com

[Tom]

I had one that was stuck and used a paint stripper gun to heat the base up a little.Used Liquid wrench also.Took awhile but finally got it loose.

[carbking]

Remove the throttle bodies from the bowl assemblies. Using an acetylene torch, heat the throttle bodies in the area of the throttle shaft bearing surfaces until cherry red. Allow the throttle bodies to cool. Do not attempt to hurry the cooling by dipping in water. Now apply any good penetrating oil, and gently work the throttle shafts until they are free. Applying pressure will normally mean the purchase of new shafts, don't hurry the process. A second application of heat may be necessary.

After disassembly, inspect the bare throttle bodies for pitting. As previously mentioned, these need to seal to allow a good idle. If the throttle bodies have major pits, they may require boring and oversize throttle plates (or, boring and sleeving).

Once the throttle shafts have been removed, they need to have the electroplate redone. Failure to do so will result in premature rusting of the shafts.

When reassembling, the shaft to throttle body clearance should be 0.004 to 0.006 inches.

Have fun. Jon.

[Robert Williams]

carbking, do you have a web-site? Thanks /infopop/emoticons/icon_wink.gif

[eskimonj]

Thanks for the ideas. I heated them up with a propane torch, let them cool and shot with Liquid Wrench....They now work freely! /infopop/emoticons/icon_biggrin.gif

[carbking]

Eskimo, you are welcome, glad it worked for you. Robert, yes, website listed in profile. Jon.