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#1
09-28-2004, 11:09 AM
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Exhaust Manifold Drain Plugs
I like the thread going on about anti-freeze and thought I would add a question about how often people remove the drain plugs on the back of the exhaust manifolds. I tried to get them out a couple of times but didn't have the right tool. Finally I made a concerted effort to get them out in about 2000 for my 1987 Prostar 190 and they were both loaded with rust particles. I flushed for about 5 minutes before it finally became completely clear (or very close at least). I did it again a couple of years later and more had formed but not nearly as much. I would say the first time I got a full cup of particles.
Anyone have similar experience and / or recommendations on how often this should be performed? I assume eventually this could impact the flow rate of coolant (water) although I never had any temperature problems. Lance 
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#2
09-28-2004, 11:43 AM
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I do mine during my winterization process. When they're out - I also stick a hose in the front & use a wire coat-hanger at the rear to get out all flakes, etc.
__________________
If one day you're asked: " How did you spend your time here on Earth?" Will you say: "I kept a crabgrass free lawn" It's time to SKI. 
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#3
09-28-2004, 11:43 AM
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Ohh yea - the "special tool" on my 95 is just a 1/2" drive ratchet (no socket)
__________________
If one day you're asked: " How did you spend your time here on Earth?" Will you say: "I kept a crabgrass free lawn" It's time to SKI.
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#4
09-28-2004, 12:23 PM
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Jimmer2880, that is my special tool now that I have the replacement plug with a square socket. The previous plugs had a hex socket and I took a long hex nut and put one end in the plug and the other end in the socket and it twisted the nut appart. I ended up getting a hardened piece of hex stock that did the trick. Since then I haven't had a problem now that I wrap in teflon tape and have the square type drive type.
Lance
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#6
09-29-2004, 06:32 AM
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Quote:
__________________
If one day you're asked: " How did you spend your time here on Earth?" Will you say: "I kept a crabgrass free lawn" It's time to SKI.
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#8
10-13-2004, 01:53 PM
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Should be a torx....maybe JimN knows the size.
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#9
10-13-2004, 02:40 PM
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Sears sells a socket with the harden hex insert that is able to get the hex plugs out. I don't remember the size but they have a whole range of sizes. That is what my brother has been using on his. Once I got them out the first time I replaced mine with the kind with square heads so I could just use the ratchet as others have discussed on this board.
I don't think these are the same as torx as they are more star shaped aren't they? Still have the question though of how often this maintenance should be done.
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#10
10-13-2004, 02:43 PM
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I take mine out every year to keep the exhuast manifolds from cracking at the seams. Unless you run a lot of AV through I would suggest it.
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