30K service - **pictures**
Hi,
I asked my mechanic to 'save' some of the parts that he replaced (during my recent 30,000 'elite' service + suspension swop-out). I was particularly interested in the amount of carbon on the SAI valve and the condition of the spark-plugs (yes ALL twelve!). Although the SAI check-valve, itself, took four hrs. of labor, plus he had to fashion his own modified crows-foot -- I was glad to see that it was - even after 10 years, pretty much OK. Here u go: http://i-fly.freeyellow.com/miscell/...-30k/index.htm (Clicking on any thumbnail brings up a big picture!) Gerry |
That check valve went down fighting! :)
Two electrode Bosch plugs .... is that from a TT? |
Dumb question coming up.... why was one of the plugs apparently missing electrodes, or is it just the angle of the pic?
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Gerry,
Are you sure the mechanic changed your plugs? The new set of Bosch plugs I received from Steve Weiner were identical to the original 3-prong plugs I pulled from my engine (Bosch FR 5DTC triple electrode). Edit: A quick search of the archives shows that a few people have pulled twin-electrode plugs from their engines. Andreas |
check the owners manual, I left mine at work, two may have been correct for some years or plug manufactures. But, as rule of thumb three prongs for NA and two prongs for turbo, correct?
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Originally Posted by AOW162435
Gerry,
Are you sure the mechanic changed your plugs? The new set of Bosch plugs I received from Steve Weiner were identical to the original 3-prong plugs I pulled from my engine (Bosch FR 5DTC triple electrode). Edit: A quick search of the archives shows that a few people have pulled twin-electrode plugs from their engines. Andreas |
Are the shocks, springs, etc on the pictures the ones that were on the car for 30K miles? If so, you keep a really clean car! :)
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Hi guyz,
Yep, those are the plugs. My 993 C2 is a (normally aspirated) 1996 jobbie-- so maybe Fritz's orders, during that time, were to install "twins". Nope, none of them have busted electrodes -- it's just their orientation by the garage floor. Re: the cleanliness of the springs/shocks etc. -- yeah she's a multiple (full)-concours winner -- nuff said. Gerry |
Originally Posted by g_murray
Re: the cleanliness of the springs/shocks etc. -- yeah she's a multiple (full)-concours winner -- nuff said.
Gerry I can't believe you won a full concours with such rust on the inside of your SAI check valve--are those judges slackin'?? ;) ;) |
I bet your wrench enjoyed working on such a clean car! Mine will never be that clean.
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Gerry: When you changed you sai valve, did you also perform "a flush"?
Jack |
Hi,
Jeff -- you're a riot! (Remember, dead foot, dead engine!) Pedsurg -- nope didn't do a flush, the SAI checkvalve swop-out was performed by my mechanic. BTW, I've never had any 'carbon' or emissions-related CELs (or pending codes) ever. Also, I routinely put in a can of Berryman's B12 or Seafoam into the gas-tank at fill-up. Having said THAT, *that's why* I asked to see the SAI checkvalve. If it *was* carbon-fouled THEN I'd be pretty much on the "I also need an SAI-flush" road by now. Conventional wisdom seems to point to the (fact?) that the *condition* of the SAI valve is a 'barometer' of the health of the engine - in particular whether the passages are clogged - and if *they are* (and you burn a lot of oil) then your valve guides are very probably worn, which means - top end rebuild. Conventional wisdom also seems to point out that 'routinely' changing THIS particular valve (even tho' it's an absolute PITA) can go a long way towards preventing the CEL blues. Gerry |
Jerry,
Just curious, given the corrosion on the plugs, etc. how much of difference did you notice in how smooth the engine is running afterwards, any issues before the maintenance, etc.? |
Gerry: Thanks for the feedback. I recently changed the SAI valve at 30 K, also without a flush. Two days later I received Joel Reiser's 993-996 PCA email missive re recommending adding both a flush and SAI valve change to each 30 K maintainance. Several weeks ago, he recently reiterated that same recommendation. (Joel: If your lurking please feel free advise, correct and/or expand). I really wish I had done the flush, not because I was having a problem (this CEL not an issue in Florida) but just as preventative maintainance.
Jack |
Originally Posted by g_murray
...
Conventional wisdom seems to point to the (fact?) that the *condition* of the SAI valve is a 'barometer' of the health of the engine - in particular whether the passages are clogged - and if *they are* (and you burn a lot of oil) then your valve guides are very probably worn, which means - top end rebuild. Conventional wisdom also seems to point out that 'routinely' changing THIS particular valve (even tho' it's an absolute PITA) can go a long way towards preventing the CEL blues. Gerry |
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