OE Exhaust Valves, Sodium |
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OE Exhaust Valves, Sodium |
914werke |
Apr 1 2006, 10:04 PM
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#21
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"I got blisters on me fingers" Group: Members Posts: 10,138 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest |
I know Jake suggests tossing these, but unfortunantly Im rebuilding a set of heads. Id like to keep them stock, but Im more concerned about longevity.
Is there anything that can be done to improve thier function? Cryo? (IMG:http://www.914world.com/bbs2/html/emoticons/sad.gif) |
Bleyseng |
Apr 3 2006, 05:29 PM
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#22
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Aircooled Baby! Group: Members Posts: 13,035 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
I am not sure that type 4 engines need a spray bar onto the guides as the operating photos I have seen show the the valve covers are 1/2 full of oil as it doesn't drain down fast enough thru the tubes.
I guess that on a high rpm engine oil sprayed directly would help provide fresh oil directly onto the guides instead of splash via the valve covers. I thought the article was fairly right on vs some NASCAR tech stuff. |