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> Whats that click in my engine, No compression, Valve stuck open maybe.
slapshot
post Aug 31 2023, 12:45 PM
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Yesterday just before getting home I heard a click from the engine then again. It wasn't steady, just every little bit I would hear it. I could feel that I lost power and it even stalled once at a stop light. Since I was only a couple block from home I just keep going.

I found that cylinder 3 could only produce 20 lbs of compression. A leak down test was 22% with most air coming out of the intake. For reference the other cylinders were 100 to 105 compression and the leak down was 18% to 20% with air noticed just in the oil filler hole. I don't know how accurate my testing tools are since they are cheap ones I got from amazon and harbor freight.

I took off of my valve cover for cylinders 3 and 4 and with cylinder 3 at TDC I have over 1/2 inch of play with both valves and the pushrods are of course way loose. I haven't removed the rockers to pull the pushrods out yet to see if they are bent. I will do that after I pulling the engine either tomorrow or this weekend.

How screwed am I? Thoughts on best and worse case?

Here's a video of my loose rocker Video of rockers
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slapshot
post Sep 2 2023, 07:05 PM
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I torqued them to 10ft/lbs. I put the engine back in today check compression and leak down before I started it. Compress was 95 and leak down was 22%. I started it up and it idle great and revving the engines was as well. It didn't seem to have its normal power while driving. I wasn't pushing it at all but could still tell something is still off. It seemed like it was running rich and missing a bit. After I got back I rechecked compression and leak down on all cylinders while still hot. Compression was, starting on cylinder 1: 102, 105, 100, 105. Leak down was 14, 18, 21, 16. That's normal for my engine since I got it. From that I think the engine is fine. Am I missing something?

Next steps is rechecking the timing which I've set not too long ago. I have a 009 distributor with a comp-u-fire module and dual DCNF Webers. Setting time is something I'm not comfortable with. It just doesn't seem to work the same as what I read in the manual. It leaves me scratching my head.

After that I'll go through the carbs again. It did seem to run rich on the test drive. It has never felt like that before. I had just got the car running good when the rocker blew. To get it to run good I had to step up to a 65 idle jet which is way big I know. It had 57.5 but backfired at idle and at 2500 RPMs. The car has had a high heating issue since I bought which I haven't solved. Maybe that rocker was screwing with my mixture enough to think I had to increase my idle fuel.

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slapshot   Whats that click in my engine   Aug 31 2023, 12:45 PM
r_towle   you may have dropped a valve seat which will wedge...   Aug 31 2023, 01:42 PM
brant   you may have dropped a valve seat which will wedg...   Aug 31 2023, 05:25 PM
slapshot   I will check for that. That doesn't sound too...   Aug 31 2023, 02:20 PM
914sgofast2   Unfortunately, it's probably best to start sav...   Aug 31 2023, 02:21 PM
DRPHIL914   I will check for that. That doesn't sound to...   Aug 31 2023, 02:43 PM
slapshot   914sgofast2, what is P&C's? Pistons and c...   Aug 31 2023, 03:18 PM
DRPHIL914   914sgofast2, what is P&C's? Pistons and ...   Sep 1 2023, 06:33 AM
rhodyguy   End result, to me, is a complete rebuild and EVERY...   Sep 1 2023, 08:30 AM
brant   Who built the failing heads? There just are not m...   Sep 1 2023, 08:34 AM
slapshot   Thanks for all the information. I've only had...   Sep 1 2023, 03:12 PM
ndfrigi   Hoping that is the only issue and can be fix and a...   Sep 1 2023, 04:08 PM
slapshot   Hoping that is the only issue and can be fix and ...   Sep 1 2023, 11:40 PM
914sgofast2   Looks like the engine was “rebuilt” by GEX. Go...   Sep 1 2023, 08:43 PM
slapshot   Looks like the engine was “rebuilt” by GEX. G...   Sep 7 2023, 05:03 PM
slapshot   I retapped the bolt, put the rocker back on and se...   Sep 1 2023, 11:47 PM
porschetub   I retapped the bolt, put the rocker back on and s...   Sep 2 2023, 01:54 PM
slapshot   I torqued them to 10ft/lbs. I put the engine back...   Sep 2 2023, 07:05 PM
porschetub   I torqued them to 10ft/lbs. I put the engine bac...   Sep 4 2023, 02:20 PM
slapshot   52 sounds about right. My reading indicates that ...   Sep 5 2023, 09:32 PM
DRPHIL914   52 sounds about right. My reading indicates that...   Sep 6 2023, 06:27 AM
porschetub   52 sounds about right. My reading indicates that...   Sep 16 2023, 10:34 PM
slapshot   [quote name='slapshot' post='3100246' date='Sep 6...   Sep 17 2023, 09:16 PM
ndfrigi   Congratulations! thanks for the update too...   Sep 5 2023, 10:19 PM
slapshot   DRPHIL914-- I am now fluent in dropping that suck...   Sep 7 2023, 05:10 PM
slapshot   I thought I would give an update here just incase ...   Sep 15 2023, 01:13 PM


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