something to think bout,,,,,
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=165104
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Topic: something to think bout,,,,,
Posted By: desertjoe
Subject: something to think bout,,,,,
Date Posted: 17 Oct 2019 at 5:48am
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Hey Thad,,,I started to look at ordering the overhaul parts for the 454 that is goin into the Big Bad Black Silverado and I come across this note on the camshafts. I remembered you telling me bout this and also jogged my memory as we used to include the zink additive way back then on all rebuilds,,altho,,we never did the oil change followup like this one says to do,,,,Can't understand how the government has outlawed the zink additive yet article says it is available in parts stores,,,,WTF,,,???
NOTE: THE U.S. FEDERAL GOVERNMENT HAS OUTLAWED THE USAGE
OF ZINC IN OILS MANUFACTURED AND/OR SOLD IN THIS COUNTRY. FLAT TAPPET
CAMSHAFTS REQUIRE A ZINC ADDITIVE WITH EVERY OIL CHANGE, OR THERE WILL
BE PREMATURE FAILURE OF THE CAM. WE OFFER ZDDP4 ADDITIVE, AND IT IS
INCLUDED IN SOME, BUT NOT ALL OF OUR CAM KITS. IT IS READILY AVAILABLE
AT YOUR LOCAL PARTS HOUSE. (This does not apply to roller cam
applications)
NOTE: ALL FLAT TAPPET CAMS REQUIRE
ZINC ADDITIVE WITH EVERY OIL CHANGE, INCLUDING WITH BREAK-IN OIL. THIS
IS FOR ALL NON-ROLLER CAMS. CAM FAILURE WILL RESULT FROM NOT USING A
ZINC ADDITIVE, AVAILABLE AT YOUR LOCAL PARTS HOUSE.
note,,I'm glad my government is lookin out for me, tho,,,,,
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Replies:
Posted By: Thad in AR.
Date Posted: 17 Oct 2019 at 6:28am
Joe, in my motorcycle group there are several who replaced lifters and then ate cams quick. I give $12.50 a quart for the oil I run in mine to get the proper ZDDP. I replaced my lifters a year ago. I used cam break in lube and added ZDDP to Non synthetic oil for the break in period . Several thousand miles later I’m going strong.
Rotella was the last I recall having enough ZDdp for a flat tapper engine.
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Posted By: Thad in AR.
Date Posted: 17 Oct 2019 at 6:31am
I’ll also add that in my racing days I used Rotella for break in oil then switched to Castro’s 2050.
I believe Rotella t4?? Might be flat tappet friendly.
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Posted By: jaybmiller
Date Posted: 17 Oct 2019 at 6:38am
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re: ,Can't understand how the government has outlawed the zink additive
yet article says it is available in parts stores,,,,WTF,,,???
up here, north of the 49th....
motorcycles need mufflers to get their tags.... cept Harleys.....hmm
cars need daytime running lights to get their tags, yet can be disabled AFTER tags issued...hmmm
illegal for me to use 24-D on my lawn, but golf course can,.hmmmmmm
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)
Never burn your bridges, unless you can walk on water
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