23 Mar 12 14:20, Mark Hofmann wrote to Roy Witt:   
      
      
      
    RW>> By replacing all 8 of your plugs, you'll notice a huge difference in   
    RW>> how that engine performs. Especially if you replace them with the   
    RW>> same type or even better, an aftermarket platinum plug.   
      
    MH> I definitely noticed a difference when I got new engine (with new   
    MH> plugs). I have better acceleration than I had previously.   
      
   Once you get those plugs/wires changed, you might want to take a look at   
   having the MAF and O2 sensors tested. The MAF gets contaminated by all of   
   the particles in the air and oil (if you use an oil impregnated filter)   
   and looses it's ability to accurately report to the ECM. At the same time,   
   O2 sensors get carbon build up and when the two are out of spec, the A/F   
   ratio gets screwed up and the ECM can't control how much time to leave the   
   injector's open.   
      
    RW>> I'd use a pressure washer to clean it before and then clean what's   
    RW>> needed while you have it apart.   
      
    MH> I have always bee worried about using a power washer in the engine   
    MH> area due to the possibility of messing up the electronics.  I guess   
    MH> as long as you keep the spray away from the electrical parts and   
    MH> sensors, you are fine.   
      
   All of those sensors have sealed connections on them, so you won't bother   
   them very much unless you use the power washer to directly clean them off.   
   Any overspray won't hurt them at all. Since you don't have a distributor   
   anymore, there's no chance of getting it wet.   
      
    MH> I plan to clean the throttle body and all intake hoses while I have   
    MH> it all off the top of the motor.  I'm sure there is carbon build-up   
    MH> in there that needs to be blasted off with carb cleaner.   
      
   If there is a MAF in the hose from the air cleaner to the throttle body,   
   check it too. It may have a clogged screen, which will also give you fits   
   if it's dirty. Be very careful when handling that thing, as it's a very   
   sensative device. Replacement costs are around $200...   
      
      
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     ... find out how far one can go ~ TS Eliot   
      
      
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