Should I purchase an aluminum valve cover instead of the plastic one on my I6? - JeepForum.com
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Unread 08-13-2012, 11:07 PM   #1
au_geo
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1985 CJ7 
 
Join Date: Aug 2012
Location: Denver, CO
Posts: 2
Should I purchase an aluminum valve cover instead of the plastic one on my I6?

Hi folks,

My Jeep's previous owner did a shoddy replacement of the valve cover gasket, and it's leaking oil. It has the 258. When I replace the gasket, should I replace the valve cover with an aluminum one? Plastic seems like it might be prone to warping/developing new leaks.

Thanks

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Unread 08-13-2012, 11:17 PM   #2
only in a jeep cj
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1986 CJ7 
 
Join Date: Jun 2001
Location: Mobile, Alabama
Posts: 4,035
YES, the aluminum versions do a great job on sealing things up. The plastics one are time bombs.
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1975 CJ-6 304 T15 Dana20 30/44 3.73
1983 CJ-8 258 T5 300 30/44 3.31 Looking for full or half hardtop buy or trade
1986 CJ-7 Laredo 4.6 stroker T5 300 30/44 3.31
1986 TJ-7 Trail Jeep project in the works
2003 Inca Gold TJ Rubicon
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Unread 08-13-2012, 11:24 PM   #3
gunzmcghee
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1984 CJ7 
 
Join Date: Jul 2012
Location: Kansas city, Missouri
Posts: 211
Yeah get an aluminum one BUT make sure you read the fine print, Some new valve covers like that require you to drill and tap the head... Just a heads up. Its not just a direct bolt on.. I can guarantee The Omix Ada ones require this and some sites like JC Whitney don't tell you that.
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Unread 08-14-2012, 11:57 AM   #4
au_geo
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Thanks guys, I appreciate it.
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Unread 08-14-2012, 02:32 PM   #5
kovic
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1983 CJ5 
 
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If you drill and tap be careful! I went the depth they told me over the phone and drilled into the water jacket, now I have a permanent stud in there.
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Unread 08-14-2012, 02:35 PM   #6
agear
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1984 CJ7 
 
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Location: norfolk, virginia
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My Brother in law drilled into the water jacket too.
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1984 jeep cj7, 258 I6, rebuilt T176,rebuilt Dana 300, amc 20 , dana 30, 4.10's Trac-lok in rear , 4.10's detroit soft locker in dana 30, 2.5 inch bds suspension lift, 1 inch polyurethan body mount lift. Line ex. weber carburetor. factory tach. factory clock ,oem replacement speedomter cluster, and oil pressure gauge, factory volt gauge.
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Unread 08-14-2012, 03:23 PM   #7
only in a jeep cj
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Quote:
Originally Posted by agear View Post
My Brother in law drilled into the water jacket too.
yeahhhhhh, he told you your lights shouldn't come on without the key as well.......sorry, couldn't resist.
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Ed

1975 CJ-6 304 T15 Dana20 30/44 3.73
1983 CJ-8 258 T5 300 30/44 3.31 Looking for full or half hardtop buy or trade
1986 CJ-7 Laredo 4.6 stroker T5 300 30/44 3.31
1986 TJ-7 Trail Jeep project in the works
2003 Inca Gold TJ Rubicon
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