Lt1 push rod issue

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Aug 12, 2020 | 05:34 PM

Dave Witman

Thread Starter

Burning Brakes

Joined: Oct 2004

Posts: 801

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From: Middletown Delaware

Lt1 push rod issue

Removed a push rod to check it for straightness and now the rod wont go all the way back in. Acts like solid lifter is stuck part way up its bore. Help

Aug 12, 2020 | 06:27 PM

Mrvettenick

Drifting

Joined: Aug 2019

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Are you sure the rod is sitting in the lifter? If so, try placing that cylinder at TDC compression.

Aug 12, 2020 | 08:17 PM

Dave Witman

Thread Starter

Burning Brakes

Joined: Oct 2004

Posts: 801

Likes: 17

From: Middletown Delaware

I am on tdc #1 so 8 exhaust is on base circle for adjustment. I think the lifter pulled out of its bore and is laying sideways if that is possible or it is stuck up in the bore.. If I move pushrod up or down it will go in farther but angle is wrong. With pushrod straight it sits about 3/4 inch high.

Aug 12, 2020 | 08:27 PM

MelWff

Race Director

Joined: May 2006

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Did you turn the rod before pulling it out? If not the oil tension between the lifter and push rod can pull the lifter out of the bore.
You may also want to read the LT1 section in this document
http://repairs.willcoxcorvette.com/corvette-30-30-and-other-oem-sb-solid-lifter-cam-valve-adjustment/

Last edited by MelWff; Aug 12, 2020 at 08:31 PM.

Aug 12, 2020 | 09:42 PM

71chimera

Burning Brakes

Joined: Jun 2020

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you can buy a cheap tiny endoscope inspection camera for your phone or tablet on fleabay amazon for $20 twenty bux

Aug 12, 2020 | 09:58 PM

Dave Witman

Thread Starter

Burning Brakes

Joined: Oct 2004

Posts: 801

Likes: 17

From: Middletown Delaware

I know better was distracted when I removed push rod. Nuts. I like the endoscope now I can see my screw up before I remove intake. Will order one tonight. Thanks

Aug 13, 2020 | 04:34 PM

71chimera

Burning Brakes

Joined: Jun 2020

Posts: 881

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with a camera, some stiff wire, patience & prayer; you might be able to wrangle a lifter back into its bore.

Aug 13, 2020 | 09:58 PM

7t9l82

Le Mans Master

Joined: Oct 2010

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From: melbourne florida

2023 C3 of the Year Finalist - Modified

Look at this as an opportunity to inspect your cam and at least one lifter. You may get it back in with a magnet then find a way to hold tension on the lifter to remove the magnet