Reusing valve guides with new valves |
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sconsalv
Member Joined: 07 July 2017 Location: Pennsylvania Status: Offline Points: 99 |
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Posted: 20 Mar. 2018 at 8:29pm |
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Question. In the process of replacing all my valves in the L134 and noticed that there is slop in the intake guide so there getting replaced but upon further inspection, it appears the exhaust guides were replaced and show little wear and look some what new. The new valves fit nice and snug and within specs. Should the valve guides be replaced or can they be reused with the new valves? Thoughts?
Edited by sconsalv - 20 Mar. 2018 at 8:51pm |
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1948 CJ2A , Picket Gray
1946 Cj2a , Project Granny LoW L134, NP435, TerraLow Gears, Floater 44 , Saginaw Steering Conversion, 113:1 Crawl |
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cpt logger
Member Joined: 23 Sep. 2012 Location: Western Colorad Status: Offline Points: 3043 |
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If they meet specs, I would reuse them.
I am curious, how are you determining that they meet specs? |
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sconsalv
Member Joined: 07 July 2017 Location: Pennsylvania Status: Offline Points: 99 |
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I have a small bore hole gauge and a mic for the valves. I also throw a dial indicator for play
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1948 CJ2A , Picket Gray
1946 Cj2a , Project Granny LoW L134, NP435, TerraLow Gears, Floater 44 , Saginaw Steering Conversion, 113:1 Crawl |
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jeeper50
Member Sponsor Member Joined: 01 Mar. 2008 Location: Spanish Fort AL Status: Offline Points: 2579 |
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I'll just say new valves new guides, thet are easy to swap in/out with proper tooling, why not begin with new. if the budget says no then by all means wait but having gone thru the replacement after several years I did an in chassis replacement last month.
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Belleview ol skool winch soon. '48 CJ2A 283 V8 sm 420 granny low, tera low D18, overdrive,lockers Texan at heart,Alabama by retirement |
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Bruce W
Member Joined: 29 July 2005 Location: Northeast Colorado Status: Offline Points: 9653 |
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X2 BW
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It is NOT a Jeep Willys! It is a Willys jeep.
Happy Trails! Good-bye, Good Luck, and May the Good Lord Take a Likin' to You! We Have Miles to Jeep, Before We Sleep. |
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mbullism
Member Sponsor Member x 4 Joined: 29 May 2015 Location: MA Status: Offline Points: 4785 |
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My dads been gone five or six years, now. Just this weekend had occasion to dig through yet another bucket (plastic bins, coffee cans, olive jars, lol) of miscellaneous "stuff" from his workshop... drill bits sharpened until the flutes were only 1/8" long, #2 pencils sharpened until they are difficult to hold, rethreaded bolts, cutting bits reground to suit the task, resharpened xacto blades and on and on...
X3 ..
Edited by mbullism - 21 Mar. 2018 at 10:53am |
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Those who do not learn from history are doomed to repeat it... Welcome to 1930's Germany
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cpt logger
Member Joined: 23 Sep. 2012 Location: Western Colorad Status: Offline Points: 3043 |
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Bolding mine. For me it is because of two reasons, OK, maybe three. First I am not a big fan of replacing it just to have new. Look at all the posts where someone has replaced their working points, plugs, condenser, just to have the new ones cause them grief. Also look at the ada-omix fiasco. Second, when removing the good guides, there is a non-insignificant chance that their bores in the block could get gouged up enough to have to bore the block to the next oversize for the guides. This is a major hassle when working with an in-frame engine. AMHIK. Been there done that (BTDT). Third is the cost factor in cost, time, & uncertainty. The guides are working now, did the machinist, whether yourself or a hired one, get the bores to size & straight with the seats? Did they mess up the bores & press new guides in without addressing that issue? BTDT. No fun. I am not jumping your case, I am answering your question. IHTH, Cpt Logger. |
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