update on the vans 253(timing chain bust) - Holden General Discussion

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Fastlane » Holden Forums » Holden General Discussion » update on the vans 253(timing chain bust)

update on the vans 253(timing chain bust)

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cloudy		#1 Posted : Saturday, 9 December 2006 5:18:05 AM(UTC)
Rank: Veteran Reputation: Groups: Registered, Veteran Joined: 1/03/2005(UTC) Posts: 2,047		After removing the timing cover which had a 4 inch crack in it, I found the chain broken in pieces, the top and bottom cogs with damaged teeth, the piece behind the top cog was broken in 3 pieces and to top it of the front of the cam was sheared off !ouch.. The good news is that the crank can be turned around with no appearant damage or strange noises and pistons can be heard hissing pressure when turned over. I`m glad it broke while stopping in a town !


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HK1837		#2 Posted : Saturday, 9 December 2006 7:50:46 AM(UTC)
Rank: Veteran Reputation: Groups: Moderator, Registered, Veteran Joined: 1/03/2005(UTC) Posts: 14,898 Thanks: 1 times Was thanked: 556 time(s) in 531 post(s)		Yep, a new cam, lifters and timing chain set. Advance the new timing chain set about 2 degrees to allow for chain stretch as it wears in. Hopefully your valley isn't too badly corroded as it's amazing how well a corroded one seals but will never seal agai
		_______________________________________________________ If we all had the same (good) taste, who would buy all the Fords?


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jabba		#3 Posted : Monday, 11 December 2006 5:15:35 PM(UTC)
Rank: Member Reputation: Groups: Registered Joined: 17/04/2005(UTC) Posts: 465		And please, please, please replace the lifters with the cam. The ONLY time that it is acceptable to leave lifters in is if you are using roller lifters and cam. You have to take them out anyway to replace the cam, and to re-use is extremely false
		__________________________________________ Keep the shiny side up, and the greasy side down.


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cloudy		#4 Posted : Tuesday, 12 December 2006 7:30:37 AM(UTC)
Rank: Veteran Reputation: Groups: Registered, Veteran Joined: 1/03/2005(UTC) Posts: 2,047		I actually had a set of new crane lifters sitting on the shelf i guess theyll come in handy now !


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jabba		#5 Posted : Tuesday, 12 December 2006 3:56:07 PM(UTC)
Rank: Member Reputation: Groups: Registered Joined: 17/04/2005(UTC) Posts: 465		When you get a new cam, it should have lifters with it. nice fresh cam, nice fresh lifters, new timing chain, should run like a dream. __________________________________________ Keep the shiny side up, and the greasy side down.
		__________________________________________ Keep the shiny side up, and the greasy side down.


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