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  • September 23, 2018, 06:59:07 AM

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Author Topic: Just rebuilt 258 now it's tapping help!  (Read 350 times)

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Offline djdelee421

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Re: Just rebuilt 258 now it's tapping help!
« Reply #15 on: July 19, 2018, 11:02:13 AM »
I'll check the preload. I'm curious if it's my oil pump making the tap but when I turned it with the drill it sounded smooth I just think the tap sounded somewhere around the oil filter so I'm not sure.
83 sx4 driver
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Offline djdelee421

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Re: Just rebuilt 258 now it's tapping help!
« Reply #16 on: July 26, 2018, 02:12:14 PM »
Well I don't have anything to measure thousandths of an inch with to check preload but my old pushrods are a 16th inch shorter then my new ones however i can spin my pushrods in there now with ease when the valve is closed. So basically I'm still 100 percent lost and I'm about ready to pull the whole engine again I don't want to get new lifters and push rods and put it all back together again just to find out it's the cam and at the same time I don't want to pull the motor and put a new cam in it just to find out it's a lifter or a pushrod. Thanks again for all the help guys maybe motor building is just not for me 
83 sx4 driver
83 wagon limited (project)
85 wagon limited (parts)
86 wagon driver
73 VW beetle (project)
68 Kaiser jeep (project)
85 GMC Sierra (project)
98 24valve Cummins work truck (beast)
94 suburban daily driver
93 freightliner FLD 120 (beast)

Offline mudkicker715

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Re: Just rebuilt 258 now it's tapping help!
« Reply #17 on: July 26, 2018, 08:34:53 PM »
I know its disheartening. Anyway. Run it for a bit without the valve cover its messy, but cleanup is easier than pulling it. Maybe it will be obvious than? I hope anyway.



Manitowoc WI

Offline djdelee421

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Re: Just rebuilt 258 now it's tapping help!
« Reply #18 on: July 27, 2018, 01:48:03 PM »
I took some time to think and I'm pretty sure it's something to do with lifters buddy of mine said he messed up the priming of the oil pump on a rebuilt ford 302 and he said his lifters were all bad due to running dry for a few minutes. And in the video you can kinda see where I put the camera was right behind the oil filter and to me it sounds like is coms from right above the cam but when I turn the motor over by hand with cover off all the valves go down and none of my rods are bent so I'm thinking it's a lifter that is internally stuck? So I'm gonna go ahead and pull the head when I get a chance pull all the lifters and inspect them and look down at the cam lobes and that should give me my answer. I will post on the topic again when I do that and maybe post another video. Thanks guys
83 sx4 driver
83 wagon limited (project)
85 wagon limited (parts)
86 wagon driver
73 VW beetle (project)
68 Kaiser jeep (project)
85 GMC Sierra (project)
98 24valve Cummins work truck (beast)
94 suburban daily driver
93 freightliner FLD 120 (beast)