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You have drug out a simple rebuild this long. Over analyzing 90% of it. Now when you want to swap the cam shaft you won't do it right? Just my opinion it may be worthless.
someone else ask did you degree in the camshaft. anytime the deck has been cut or the head shavedthe cam will be out of time slightly. an adjustable camshaft sprocket can be used to get it back into spec.on stock cams this is not as important as aftermarket cams. if this was not done during assembly it could be the root of your problem. read up on youtube about how to degree a cam. the card that came with thecam will tell you when things are supposed to happen (opening and closing of the valves). a few degreesoff can make a huge difference and aftermarket cams are more dependent on this being correct.even if the head is new and the deck is uncut (never built one that had an undecked block) i still degree in my cams.
I will not unleash on you, but I will say the adjustable cam gear is a great tool no matter what cam you are running. You could justify ordering one just for the sake of seeing what happens and it still wouldn't be a waste of money even if you ended up ditching that cam. In my recent experiences adjusting the cam timing made large differences in the way my 22R ran.
All You have to do is remove the valve cover and cam bolt. Nothing crazy or that requires weeks of research.
Why do you think you are running lean?
UPDATE May 1st 2017 AM:I drove the truck yesterday and the noise coming from the front of the rock cover is louder. I need to figure out what that noise is.It sounds like a loose rocker or valve lash? It seems to be just one or maybe 2 valves, louder near number one cylinder. I hope its not a valve, valve seat, or spring. I will try one more time on an adjustment on the valve lash, and open the lash up a couple thousandths. I'm going to carefully inspect the rocker rack, lash studs on valve stem location, and remove the camshaft. I haven't decided yet, but I am leaning towards a new camshaft from CompCams - the 252S. At this point, I'm concerned about the overlap in the 261C, but it's just my gut feeling, past reports on this cam in a 22RE, not based on any real hard facts.Regarding the fuel pressure regulator... it's looks impossible to R&R without removing the chamber from the intake manifold. But, I will replace it.Gnarls.
If I missed it forgive me. But, did You replaced the rocker arms with the new cam shaft? Cam going flat?
There are several things you have missed. I did not replace the rockers. They looked good. I will check for a flat lobe, but I don't think the rockers would cause that in less than 100 miles?Gnarls.
I believe all the cam manufacturers and 22re companies recommend replacing the rockers with a new cam shaft.I have been told its like reusing lifters. A big NO NO!
Polish them there rocker pads on a wet stone, like you use for your skinning knife. Just drag them down the wet stone covered in good honing oil until you have an um-blemished surface with all the wear marks gone. Probably not as good as new, but you end up with a nice fresh flat surface for the cam to break into. I tried it as an experiment and it worked just fine.
Gnarls, I won't be able to get a look at my plugs for at little bit. Had at little accident and need to get the winch off of my truck in order to open the hood. I still strongly believe it's not the cam that's causing you problems as mine never did. After talking to H8 I figured out why I dislike this cam, the power band is narrow and it's a problem for me.
When you put the valve cover on what did you torque those top 4 bolts to?
Figure I should post up here since I have a similar new rebuild. Engnbldr Street RV head, 261c and the DT header. Machinist has built plenty of 22REs and said all he needed to do to my rockers was polish them a bit. Did not need to deck the block. Valve lash set to 007/009. Anyway, I could not be happier with how this motor runs. No issues with idle and starts with a blip of the key cold or hot. It has the quietest idle out of any 22RE I have owned (10 or so at this point) and definitely pulls harder than any of them. I have about 100 miles on it so far. And it does not seem to getting noisier. Like most of us I am super familiar with the valve chatter and this just does not do it for some reason.I have never had a fresh rebuild though to compare it to. My last truck came to me with a rebuild with 30k on it, stock head, DT and the Comp Cams 252S. My butt dyno says it did not pull as hard as this new motor, although that was 33s/4.88 and my current ride is 35s/5.29. I could not get that previous motor to have a quiet valvetrain.I'm in CO, so I will be doing emissions on a dyno. I will report back here with how that goes. They can't really test for lean but if I have high NOx that would be a sign.I haven't read through this whole thread but are you sure your timing mark on the damper is correct? I had that slip on an old motor once and ended up timed 10 degrees ATDC when I thought I was spot on. Caused all sorts of misses and SUPER hot exhaust.Long story short, unless that 261 is defective I doubt changing cams is going to fix your issues.
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