The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1960 - 1966 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 03-11-2024, 08:33 PM   #1
850_C10
Registered User
 
Join Date: Sep 2023
Location: Santa Rosa Beach FL
Posts: 2
64 C10 Engine Ticking Sound Help

I started up my truck the other day and it has this awful ticking sound coming from the engine. I think it is part of the valvetrain but I am not sure. Any ideas of what it could be? Engine is a 1978 250 inline six.

Video of engine idling
https://www.youtube.com/shorts/hxsebdoDo-Y
850_C10 is offline   Reply With Quote
Old 03-11-2024, 08:59 PM   #2
dmb
Active Member
 
dmb's Avatar
 
Join Date: Sep 2023
Location: randolph va
Posts: 159
Re: 64 C10 Engine Ticking Sound Help

sounds like a rocker arm ticking, pull the valve cover and look to see if you have bent pushrod, may just need adjusting. Did it start suddenly or get progressive louder
__________________
Old dogs and children and watermelon wine
dmb is offline   Reply With Quote
Old 03-11-2024, 10:56 PM   #3
geezer#99
Registered User
 
geezer#99's Avatar
 
Join Date: Aug 2009
Location: Bowser
Posts: 13,732
Re: 64 C10 Engine Ticking Sound Help

Sounds like a collapsed lifter!
geezer#99 is offline   Reply With Quote
Old 03-11-2024, 10:57 PM   #4
bhap
Senior Member
 
bhap's Avatar
 
Join Date: Mar 2006
Location: Pittsburgh, PA
Posts: 264
Re: 64 C10 Engine Ticking Sound Help

You can pull the valve cover and run the engine without making too much of an oil mess. I’d pull the valve cover and look for loose rockers or stuck valves. Sometime a good dose of Marvel Mystery oil added to engine oil will loosen up a stuck lifter. Does it look clean or dirty if you look in the oil filler hole?
bhap is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 12:41 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com