Aidan's loose oily bunghole actually runs a track lap
05-24-2017, 02:36 PM
#9741
SADFab Destructive Testing Engineer
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I haven't put any new seals on. but couldn't find a straw that would fit yet. My new seals didn't come with one either. So I'll keep looking.
Chipotle didn't fit, neither did the bendy straws I have in the kitchen. Might try and grab a starbucks straw, or McDs. But I'm worried the McDonalds one will be too big, those are some monster straws.
Chipotle didn't fit, neither did the bendy straws I have in the kitchen. Might try and grab a starbucks straw, or McDs. But I'm worried the McDonalds one will be too big, those are some monster straws.
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05-24-2017, 03:07 PM
#9743
I haven't put any new seals on. but couldn't find a straw that would fit yet. My new seals didn't come with one either. So I'll keep looking.
Chipotle didn't fit, neither did the bendy straws I have in the kitchen. Might try and grab a starbucks straw, or McDs. But I'm worried the McDonalds one will be too big, those are some monster straws.
Chipotle didn't fit, neither did the bendy straws I have in the kitchen. Might try and grab a starbucks straw, or McDs. But I'm worried the McDonalds one will be too big, those are some monster straws.
UPC Code: 041165060850
I have an email into Dart customer service asking for a chain that uses them. You never know 'till you ask.
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05-24-2017, 03:37 PM
#9745
Or hit up your local Harbor Freight cylinder head repair shop for 6mm heat shrink tubing. All you're looking for is something to slip over the stem (5.9ish) to keep the seal lip from grabbing on the retainer groove. Then you pull it out once you "click" the seal into place.
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05-24-2017, 04:31 PM
#9749
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I didnt know what they were at that point. Thought they were washers. Thanks man. Hold onto them.
I don't need a reason to go on a fast food binge.
I have lots of heat shrink tubing. why the **** didnt i think of that.
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05-25-2017, 10:13 AM
#9751
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Got a better picture
Almost looks like a casting defect. No sharp edges or anything.
Half my seals were just sitting on the valve...this video was my first time touching the seal.
So PSA. Put your seals on tight.
Almost looks like a casting defect. No sharp edges or anything.
Half my seals were just sitting on the valve...this video was my first time touching the seal.
So PSA. Put your seals on tight.
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05-25-2017, 10:18 AM
#9752
This is the stock shim:
OEM it's primarily there to keep the spring from wearing direction on the aluminum. With the Supertech springs, you're supposed to keep it, although now it's just a .005" spacer, because instead of the spring going on top you have this:
That's the ST spring seat. On top of that go the springs:
That's a set of the heavy doubles. On top of those go the top mount (not sure what that's called), and the two keepers go inside that. The valve stem sticks up through the hole in the center, and the grooves on the stem engage with ridges in the keepers to lock it all together.
The .005" shim doesn't sound like much, but it's adding preload to the spring. Preload is important -- I measured my exhaust manifold pressure at 350 kpa at one point. That's 50 psi pressing on the top of the exhaust valve, and since the valve has an area of a bit more than a square inch, it means that there's 50+ pounds of force trying to shove the valve open during the intake stroke. So you need a bunch of preload to keep the valve up against the seat.
--Ian
(ack, stupid web site coughed up a hairball when I was editing this to add the bit about preload)
OEM it's primarily there to keep the spring from wearing direction on the aluminum. With the Supertech springs, you're supposed to keep it, although now it's just a .005" spacer, because instead of the spring going on top you have this:
That's the ST spring seat. On top of that go the springs:
That's a set of the heavy doubles. On top of those go the top mount (not sure what that's called), and the two keepers go inside that. The valve stem sticks up through the hole in the center, and the grooves on the stem engage with ridges in the keepers to lock it all together.
The .005" shim doesn't sound like much, but it's adding preload to the spring. Preload is important -- I measured my exhaust manifold pressure at 350 kpa at one point. That's 50 psi pressing on the top of the exhaust valve, and since the valve has an area of a bit more than a square inch, it means that there's 50+ pounds of force trying to shove the valve open during the intake stroke. So you need a bunch of preload to keep the valve up against the seat.
--Ian
(ack, stupid web site coughed up a hairball when I was editing this to add the bit about preload)
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05-25-2017, 10:30 AM
#9754
Half my seals were just sitting on the valve...this video was my first time touching the seal.
https://youtu.be/2JyXVxZGKbs
So PSA. Put your seals on tight.
https://youtu.be/2JyXVxZGKbs
So PSA. Put your seals on tight.
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05-25-2017, 10:44 AM
#9755
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Those are OEM seals.
Here is my guess.
Correctly installed supertechs leaked a little bit
Incorrectly installed OEMs leaked a lot
Once I get these felpros installed and running I'll know for sure. If it still smokes something else may be wrong.
Here is my guess.
Correctly installed supertechs leaked a little bit
Incorrectly installed OEMs leaked a lot
Once I get these felpros installed and running I'll know for sure. If it still smokes something else may be wrong.
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05-25-2017, 10:48 AM
#9756
Retired Mech Design Engr
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What am I learning from this thread?
I should go ahead an buy and install a TSE oil cooler kit because I'm a whimp and I NEVER want to have to rebuild my engine.
Reminds me: @18psi, did your VVT engine ever run? I don't recall who bought it from you.
I should go ahead an buy and install a TSE oil cooler kit because I'm a whimp and I NEVER want to have to rebuild my engine.
Reminds me: @18psi, did your VVT engine ever run? I don't recall who bought it from you.
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05-25-2017, 10:52 AM
#9758
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Sorry for the lack of context.
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