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Awesome, don't give up on the diamond star yet, remember, almost everything is a compromise. About the lash adj in theory I can see that, 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.
 
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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.

It would make sense if the tips were so far out of wack that the adjuster was out of it's operating range.

If you could find that thread/discussion, I would be much obliged. I am always down to learn.

To the OP, it's good that they are still trying to make this right. You have more patience than myself.
 
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
 
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 agree. I was wondering what the heck happened to him. He seems to have fallen off the face of the earth, and I have learned a TON from his posts.
 
Ok I found one of the threads, it says the lifter preload is thrown off. Ok, don't laugh but I don't recall how to post a hyper link on here, how you do LOL?
 
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'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.

This is the best news I've heard in awhile. I sure hope that when he's caught up he starts posting again and taking new orders. Just reading his tech guides is one of the best things you can do. Well worth the time. Thanks for the update
 
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 Shits and grins
 
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

The only possibility would be if there happened to be debris between the valve and seat that was preventing the valve from closing all the way.
 
^^^ Bryan, I checked and checked again. No debris. So pulling a vac showed very little leakage but anywhere from 15-100psi that I applied for the leakdown showed a very very substantial leak.
I'm just very confused right now. My jaw about hit the desk when i watched the videos. I just couldnt believe it. I know there are differences between applying pressure from the other side of the valve and pulling vac on the port. The pressure is far greater in my test, im sure. God, i gotta upload these so you guys can see. I was speechless when i first talked to allen.[DOUBLEPOST=1411676198][/DOUBLEPOST]http://s832.photobucket.com/user/josh10951/library/

Maybe this will work
 
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That is a different type of test than what i do. That seems like there is constant vacuum being pulled and wouldn't verify a small leak. 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. Watch this video and notice how after he pulls a vacuum he turns the supply off and watches to see if they are actually leaking down. I really don't like the method that they are using there.
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^^^ 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?
 
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.
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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 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?

You could just take it to a local machine shop and have them test it also, and do a liquid test on it.[DOUBLEPOST=1411680903][/DOUBLEPOST]
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 made my setup. I have a few different ones for different heads. I just use a piece of 1/4 plate steel, drill a hole in it and tap the hole with a npt tap. Than i thread a barbed fitting into it with a little rtv on it. To seal the plate i got some rubber gasket material and cut it to the shape with a hole in middle where the hole in the plate is. I use a little bit of grease to hold the rubber to the metal.
 
I thought about the liquid test but assumed it would fail, seeing how much air was coming out even at 15 psi. Maybe i'll do that next time around.

Btw, Allen is paying for return shipping and getting me another cometic MLS at cost so thats pretty good for sure. Can't complain.
 
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 .
 
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 .

Well yea, there did seem to be quite a bit of that silver paint. I have never had a head truly "built" by a specialty shop but was a little surprised to find the comb chamber painted. Seats looked clean. I'm still just so dumbfounded by my results. They were tested repeatedly at different pressures with the same results w leaking intake valves. And not one puff of air out of the exhaust valves. That is really strange but, like i said, im still a noob with internals. I know these cars fairly well but im no machinist.
 
I'd bring it to another machinist for a second opinion if I were you. Just a thought. When you get it back, take an hour out of your day and flip it over with spark plugs installed and just top the chambers off with some sort of liquid. I used ATF. If it leaks out the ports, it's not sealing. When I had my own machinist return my head back to me, he said the valves were never seated. And I did the same test after my machinist handed it back to me and not a single drop went past. If my head can do that, so can yours.
 
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