Pontiac Engine Valley Pan
Posted 04 July 2011 - 09:47 AM
From what I learned the proper thing to do is to drill out the spot welds and crack it open and give it a complete cleaning. Hot tanking in one piece it isn't good enough because you can't get all of the years of gunk out. That works as well as using compressed air on an air filter. Not a good idea. The valley pan helps your engine breath and it also helps the engine stay cooler. Once you get the inside cleaned back up then you weld it back together. Anything worth doing is worth doing right. Unfortunately I only have before and after photo's at the moment. I did photo the process but those will get added a bit later as I used my wife's phone and she of course has it with her. LOL Hope this helps
Posted 11 August 2011 - 08:29 PM
What cleaning process would you recommend if you don't have access to welding equipment?
How did you paint it and what kind did you use?
Posted 11 August 2011 - 08:58 PM
Hot tanking will clean the exterior of the valley pan, but where the two halves of the pan are spot-welded will tend to still hold dirt particles- the only way to clean the pan 100% is to split it, and then reweld it after cleaning. Blasting the interior of a valley pan should also be avoided as the blast media can imbed itself in the pores of the metal- use a wire wheel to thoroughly clean both surfaces inside the pan, and underneath the pan.
Posted 16 August 2011 - 06:33 PM
Nice Job, just did my 80 Indy the same way.
Where did or can you find the PCV Grommet
with the small hole, I can't find one.
Posted 16 August 2011 - 06:45 PM
Just read your profile, I have the same car. Just pulled
the motor and trans., new gaskets, seals, paint etc.. I
am trying to locate where to put 2 heat shield's, posted
problem on tech. forum. Any help would be appreciated.
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