miliman13
10+ Year Contributor
- 1,957
- 276
- Jan 1, 2011
-
tampa,
Florida
Awesome. As members and consumers this is good to hear.
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In theory, but I do remember someone on here having issues with tip height after a 3 angle valve job. I recall the travel on the lash adj being minimal, I'm assuming they are there only to take up the change in tolerances from thermal expansion. I guess the same reason that shims are installed under them for re ground cams. I'll try to dig up that thread, I think he was having issues with the valves hanging open, I think bogus svo gave a good explanation.
Speaking: Has Bogus ever recovered from that flood that messed his machine shop up? He was my very first choice to build the head but i was a little late and he had went MIA by that time.
I haven't seen a post from him in several months, all i heard about was people having delays in getting their blocks/heads finished and shipped. I sent a couple PMs and heard nothing back so i went with SIM
He was such an asset to the community. Hope he is well and he returns to the forums someday soon
I'm not BogusSVO's spokesman so nobody PM me asking questions about him, but I visited Dale's shop a few days ago and he's alive and kicking. He turned his phone off and stopped going on the internet because he is 100% focused on getting everything out of his shop first. People are beginning to get their engines and heads, and he's kicking ass. My engine he said will be done sometime this week so I'll keep yall updated on that. But word from the man himself in person was "I'm not taking anything new until I finish everything I have right now". So he's still alive and kicking and will be back, he's just putting his head down and kicking ass so he catches up.
I cant upload the clips but later when i have time i will post them to youtube or figure some way to do it. Allen took the head out of the box and has video PROOF that they all seal.
We talked at length about why/how i was getting leakage on 1,3,and 4 intake and zero leakage on any exhaust valves. Size of the valve is possible?
Nonetheless, the vac test and video I believe to be 100% honest and show perfectly good results. SO, in short, besides the tiny bit of debris on the head the first go around, they did indeed send a perfectly good head the second time. According to the vac test if i had just ran that head it would have been perfectly fine. The valves needed to seat, i guess.
If anyone has any idea why air would leak past in such great volume during my test yet pass with flying colors on a machinist's vac machine, please throw them ideas out there!
I will not be doing a leakdown test when i get the head back. It would be pointless because i would see the exact same results. Just gonna continue on with the build.
Allen, if you're reading this I seriously cant upload the videos. Give me some time, I have to go ship some parts for work, then I'll find out how to upload and put links to them.
There are 9 ~2.5MB .MOV's
I'm sure most anyone would have freaked seeing that much air come out but, i guess it turns out I was in the wrong this time. I will certainly own up to it. Once its together and has a couple hundred miles ill do another leakdown just for sh**s and grins
Cool i have acces to a small hand held vac, my question is were do you find the fitting/hose with pad ? i looked online and not luck. sorry to butt in its just i too will have to do this same test and rather do it myself.I use a hand held vacuum pump with a gauge and pull a vacuum than let it sit for 10 seconds to see if they are leaking down or not.You must be logged in to view this image or video.
^^^ I agree. That appears far more accurate than what I linked. Oh boy oh boy oh boy.....
Hmmmm... I gotta go out of town for business all next week but when i get back i can use the used MLS(torqued once) and just torque to like 60lbs, enough to show what i want without having to burn through yet ANOTHER HG. Then i can take a detailed video of MY process and the results. No gauges but i can put a, idk, candle up next to it or piece of paper just to show how much is blowing out. Then maybe you guys can weigh in?
Cool i have acces to a small hand held vac, my question is were do you find the fitting/hose with pad ? i looked online and not luck. sorry to butt in its just i too will have to do this same test and rather do it myself.
I just had a customer bring me a "built" head to install . It was really pretty and freshly done. Leakdown test was terrible like you described, turns out they painted the head silver and got overspray on the seats. Sprayed all down with brake clean and now it seals great! Freaking weird problems .