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Old 11-15-2014, 08:20 PM
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Valve cover machining

Hey all,

Just had to replace my valve cover as it was warped and leaking like crazy. I found a good one for sale online, and swapped it out, but now I have the old one. I also have a small machine shop to play with.

Has anyone ever tried to re-machine their valve cover flat? If not I'll give it a shot on the old bridgeport and take some pics along the way...

B
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Old 11-15-2014, 09:03 PM
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Fixturing is the key to happiness, show pics
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Old 11-15-2014, 09:18 PM
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If you machine it flat you also have to machine the re-inforced areas where the studs go through.
If there is not enough threads on the Studs you need to thread them down further.
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Old 11-15-2014, 09:44 PM
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Check it first with a surface plate and feeler gage.

If it is close get a big sheet of sand paper and put it on a surface plate with some oil and lap it with a figure 8 motion.

As mentioned holding a valve cover on a Bridgeport is going to be very hard. You may not have enough travel to clear the cutter on both sides of the valve cover either.
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Old 11-15-2014, 11:19 PM
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... clean it, and turn it into a lamp...
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Old 11-15-2014, 11:25 PM
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Good idea vstech. Or make it in to a fancy clock. If you can get $50 for a hubcap clock I bet a valve cover clock would net an easy $75...

https://www.etsy.com/listing/188387176/mercedes-hubcap-clock-dark-blue-green?ref=sr_gallery_2&ga_search_query=mercedes+hubcap&ga_search_type=all&ga_view_type=gallery
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Old 11-15-2014, 11:42 PM
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I just changed my gasket, I took a file and filed down the support towers. I then lightly filed the edges of the cover. This should give me a nice seal...if it is still a tad leaky I will get a few washers...as mine are missing anyway. Lapping is the best way to do it as was said...but who wants to buy that much sand paper
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