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Mod | | | Forums66 Topics128,089 Posts1,056,004 Members48,430 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Jun 2010 Posts: 170 'Bolter | | 'Bolter Joined: Jun 2010 Posts: 170 | Just some info on my stupid experience. I replaced my 216's head last summer and have been on and off trying get it to run smoothly. I adjusted the valves several times, worked with the timing, even replaced the carb. Today I went to get non-ethanol gas for winter storage. I still had an intermittant "pop" in the exhaust. Figured I'd double check the valve adjustment again. This time I noticed that the front bolt holding the rocker assembly was loose. I could actually wiggle the rocker shaft. Tightened the bolt, readjusted #1 and #2 valves and now it is running better than it has in literally years. I don't know how I never noticed that loose bolt, I know I torqued it when I swapped the head last summer - but I never re-checked it. Just goes to show - aargh. Easy simple thing I never checked - double arrgh! | | | | | Joined: Jan 2002 Posts: 2,839 'Bolter | | 'Bolter Joined: Jan 2002 Posts: 2,839 | But at least you found and corrected it. Good for you. Now take the rig out for a celebration/test drive.
Craig My '50 Chevy 3100 5 window, '62-235cu, 3:55 rear My truck ....... Respect The Rust If I'm not working on my truck, '65 m00stang or VW camper, I'm fishing with the wife or smoking Salmon.
| | | | | Joined: Dec 2001 Posts: 14,522 Moderator: Welcome Centre, Southern Bolters, Legion Hall | | Moderator: Welcome Centre, Southern Bolters, Legion Hall Joined: Dec 2001 Posts: 14,522 | There may be a reason it was loose besides just missing it. Drive it and later I'd suggest a recheck. | | | | | Joined: Jul 2000 Posts: 2,192 Insomniac | | Insomniac Joined: Jul 2000 Posts: 2,192 | Didn't know they could get loose. Maybe a good thing to check before adjusting the valves...
Gord 🇨🇦
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1954 1/2 ton 235 4 speed
| | | | | Joined: Feb 2004 Posts: 29,787 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,787 | Elderly bolts can, and do stretch. I'd suggest replacing those rocker stand bolts with 3/8-16 Allen head cap screws, which are available on Ebay in a wide variety of lengths. Fastenal will probably have appropriate length new studs for the valve cover attachment on the 216/early 235 engines.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: May 2015 Posts: 11,054 Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums | | Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums Joined: May 2015 Posts: 11,054 | Elderly bolts can also snap unexpectedly when torquing them. I've had that happen on occasion at well below the spec'd torque.
Kevin 1951 Chevy 3100 work truckFollow this saga in Project JournalPhotos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together. | | |
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