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Join Date: Aug 2006
Location: wales , uk
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Case cleaning
Hi all , i,m starting my engine rebuild on my 2.7 1976 and cleaning the case, i,ve done the outside and the inside,but what can i use to clean the parts where the crank sits, is it ok to use some fine scotch brite and brake cleaner or should i use something else. Also i can,t find any kimwipes over here, what,s the best next thing that i could get in the uk. cheers Rik....
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Don't use any kind of Scotchbrite on the case!!
Pull the oil galley plugs and take it somewhere where they do soda blast cleaning. Follow that with an hour in a parts washer and you're almost done. Scrub out the oil galleys with long bristle brushes using solvent, followed by very hot water & soap. Blow dry and replace the oil galley plugs. Voila',...now you are ready to begin the assembly process. ![]()
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Steve Weiner Rennsport Systems Portland Oregon (503) 244-0990 porsche@rennsportsystems.com www.rennsportsystems.com |
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Thanks Steve, i,ll give that a try, many thanks Rik..
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RIK 911 2.7 76 summer only 924 gts repilca - sold 924 turbo s2 - sold 924 turbo s2 nightmare car -sold |
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Hey Steve, How does one properly remove the galley plugs? Drill & slide hammer? Can you guys supply the galley plugs? The Sunset Porsche parts dept guy couldn't find them on his system...
Curt
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The machine shop I use make there own galley plugs. Anyone know of a source for these? Soda blasting the case sounds like a good idea, should one stay away from the sealing and bearing surface? Can the case be cleaned after blasting without removing the plugs?
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Carlson's in Calif. got mine. They're listed under a 964 # at US dealers but in Germany 911#s. Order all of them they're cheap.
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I pulled all the plugs from my case by drilling, tapping, and then using a
bolt + oversize socket to wind the plugs out. I tried a slide hammer but that just tended to pull the newly tapped threads out. Maybe I was doing it wrong. Soda is not soluble in oil and the blasting process will leave some somewhere in your oil galley. You must, no MUST, pull all the plugs and clean the galleys if you soda blast your case. Why wouldn't you pull the plugs and clean the galleys anyway? Once you've torn the engine down it's hardly a stretch to clean it properly. andy |
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Wer bremst verliert
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Would dry ice blasting be an alternative? I'm not sure how aggressive it is on aluminum, but there are no particles left behind.
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Thanks Andy- I'll give the drill/tap/turn method a try. They guys that did the rest of my case work said they could tap and replace all of my plugs for a measly $55, so there's not even a question about how I'll proceed
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Quote:
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Anybody??
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I am thinking, and certainly do not want to speak for Mr. Weiner, that the use of scotchbrite is disfavored due to the fact that as it disintegrates with use the fibrous pieces can get in the nooks, crannies, oil galleys etc., and lead to massive engine failure...
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Thanks JP, I was thinking that it would scratch the surfaces.
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Quote:
jmho dm
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Quote:
Thats why we invested serious money in a big soda blaster (and compressor) to clean all these kinds of parts in a non-invasive manner that leaves no artifacts.
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Steve Weiner Rennsport Systems Portland Oregon (503) 244-0990 porsche@rennsportsystems.com www.rennsportsystems.com |
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Thanks for the response Steve.
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Mo money = mo parts
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I have a question about the oil galley plugs. I was reading another thread a few days ago where there was some debate over the topic and Wayne weighed in not supporting it. Can the engine be effectively cleaned without removing the galleys? I have no idea, just asking the question. Thanks.
Engine rebuild - Leaky case already?
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Quote:
![]() I will try to get new plugs. Once I have them, I will remove the old one. I plan to use my wifes steam cleaner to blow all holes. That should get all little stuff out incl. any scotch brite left over.
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You guys are talking aluminum cases. What about Mg cases? Would the soda react badly with the Mg? Seems everything else does.
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