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manufactures dont add parts to assemblies for fun. They do it out of necessity.
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Originally Posted by shuiend
(Post 1438147)
I have put 2 or 3 motors together without those without any issues. You just have to make sure you line up the head perfectly when putting it on. ARP head studs make it much easier.
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Originally Posted by Engi-ninja
(Post 1438160)
Be careful about this; dowel pins and their mating holes have positional tolerances on the order of 0.1 mm or less; it's impossible to get that magnitude of accuracy by eyeballing it. Also, the point of a dowel pin is so that the bolts don't have to locate the part, which allows the bolt holes to have a larger positional tolerance. This means that centering the through holes over the tapped holes may not actually be "perfectly lined up," even if it were possible to do that by eyeballing it. Finally, due to the very high tolerance involved, dowel pin machining is expensive, and usually avoided if at all possible; so when there is a dowel pin, there's a good reason for it. Just some things to keep in mind.
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I would not leave those out, you might not be as lucky as shuiend. They seem critical to me, I am running head studs but made sure to grab the dowel pins from my old block too.
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They are on the way.
I cleaned some gasket maker from the oil pump and block mating place and I noticed that the pump is not level with the block - where the oil pan will sit. On one side the pump is a little low and on the other side it is a little high, I'll take a picture when I 'll get home. Not my engine just for reference: https://cimg4.ibsrv.net/gimg/www.mia...e7f182077b.png |
You have the locating dowels on the pump? Otherwise, just let a generous amount of silicone sit for 5-10 minutes so it gets tacky and doesn't flow as easily, then throw the pan on.
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It is a BE stage 2 pump... the only thing not attached to it was the o-ring - so I believe the locating dowels are there...
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Gates vs china and sendblasted valve cover
https://cimg6.ibsrv.net/gimg/www.mia...65c72f50c0.jpg Gates https://cimg7.ibsrv.net/gimg/www.mia...fde868de74.jpgChina https://cimg8.ibsrv.net/gimg/www.mia...cfdb00b522.jpgSendblast https://cimg9.ibsrv.net/gimg/www.mia...70c8ccb59b.jpg |
https://cimg8.ibsrv.net/gimg/www.mia...11a486b5a.jpegCompressor housing upgrade
https://cimg9.ibsrv.net/gimg/www.mia...035a9122b.jpegMore progress |
I got an IC for over the rad setup, I need to relocate my dryer... any good tips ?
Thanks Elior |
I noticed my intake VVT camshaft dowel pin is almost flat with the camshaft....Should I be alarmed ?
The pic just for reference: (not my engine) https://cimg7.ibsrv.net/gimg/www.mia...ca66ecabfd.png |
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Looks nice. is that the msm orange paint?
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.
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Originally Posted by 18psi
(Post 1449319)
Looks nice. is that the msm orange paint?
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Originally Posted by Art
(Post 1450049)
I'd try to use valve cover hoses with about twice the cross sectional area rather than threading in those AN fittings but I don't know what's necessary for 400 hp.
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Just for looks
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Needs big holes
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Hes going to run a vacuum pump guyths.
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Who cares about function. All that matters is how pretty it looks
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Originally Posted by sixshooter
(Post 1450176)
Needs big holes
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Quoting yourself, nice :rofl:
Am I the only one who doesn't care how pretty it is, as long as it functions well? Nevermind, obviously. |
Originally Posted by sonofthehill
(Post 1450500)
Am I the only one who doesn't care how pretty it is, as long as it functions well?
Needs cavernous openings |
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Looks good!
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There's a provision for a banjo bolt on that side of the head? Did you just hog out that NPT fitting for some straight thread?
That's post oil restrictor, so is there any concern for starving the cam journals a bit? |
Um, no. Would not do that. No.
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lol no
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Who told you that was ok?
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A Precision 6870 with the same feed line
Where would be a conviniate place to plug my oil temp sensor ? is it a GM closed element. |
Originally Posted by elior77
A Precision 6870 with the same feed line
Where would be a conviniate place to plug my oil temp sensor ? is it a GM closed element. |
Originally Posted by elior77
(Post 1452168)
A Precision 6870 with the same feed line
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No, just nines
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Move your oil feed.
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It is safe for the local drag cars so it is safe for me and btw:
https://cimg2.ibsrv.net/gimg/www.mia...cb87d2124a.png |
RIP OP's head and turbo. Stay safe OP.
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I just go tell the local drag guys to move there oil line - I'll be back asap
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If you can't quantify the difference between what i think the intended use of your car is and that of a drag car, then you're beyond saving.
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I've seen the size of the oil orifice in the top of the block at the head gasket where it feeds oil to the Head. It is already quite small. Taking a lot of that oil away from the cams and valves might be a bit of an issue. And if you have a journal bearing turbo that might limit your oil a little as well.
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Just because it can run, doesn't mean that it's correct or ideal. Sabotaging your lubrication for your quest to 400hp seems a bit counterintuitive.
Meh. I lost interest. |
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Originally Posted by Savington
(Post 1084924)
As clean as the head port is, I don't like it. The head is fed through a fairly small orifice, so the pressure/flow is already restricted, and pulling from that doesn't seem like a good idea (and the data that DKMakinson posted backs that up).
There's also the fact that Mazda went through the hassle of re-drilling and re-tapping those ports in the block when they did the MSM, instead of just pulling the oil from the head. We'll be sticking with a block feed for our kits. Read Joe's last comment on that thread. It makes sense. |
I wouldn't do that. Look, the orifice in the block that feeds the head was sized to give the head proper flow. It is true that there's probably some over engineering, safety factor there :dunno: That would be like intentionally running a smaller oil feed restrictor than the correct size to your turbo. Just doesn't seem like the best idea to me.
Maybe oil flows better to the head in Oz :bowrofl: |
We've done over 100 easily.
We have had a bunch apart years after doing them and the cam journals and all wear surfaces look normal. It's a super clean way to do it and seems to work fine... But that's just like... my opinion, man. Dann |
Thanks for the input Dan, I think I'll keep me sexy oil line :)
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I too have looked at that spot, and was gonna use it till I realized the whole block/restrictor thing and then I didn't. Interesting that others are running it without issue though. Has anyone measured oil pressure out of that spot? I can't imagine it being as high as pulling from the usual location.
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You get a few litres a minute no prob.
Dann |
https://cimg9.ibsrv.net/gimg/www.mia...e7f3eee14b.png
More progress, the engine is in not much left :) |
Hey, check out those AN fuel line adapters if you don't already have them! Edit: im crabby because enough people in my branch conveniently called out "sick" to the point where I'm sitting idle without support to finish projects. I can't even doodle on SolidWorks because licenses haven't been updated. |
Originally Posted by psyber_0ptix
(Post 1452750)
Might want to try AN Fuel Line adapters instead of electric tape.
lol I was thinking the vacuum/boost reference line needed to be secured on the barb fittings when I saw it. I use small zip ties. |
Originally Posted by psyber_0ptix
(Post 1452750)
I can't even doodle on SolidWorks because licenses haven't been updated.
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On the turbo oil feed. I have been running that for 10k street miles. Small journal turbo with a 1mm restrictor at the turbo feed. I have not pulled the valve cover since install.
I moved my OEM (1999) oil pressure switch to the head port on the opposite side. It always registers with the engine on, so that would indicate no less than 7psi at the head gallery. I ran preliminary pressure tests on that port years ago, but Brain questioned my methodology. Perhaps putting the gauge at the port where I now have my switch would be a good way to put this discussion to bed? Test pressure with and without the turbo feed, and that would tell if the head gallery is being starved. |
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Originally Posted by DNMakinson
(Post 1452966)
Perhaps putting the gauge at the port where I now have my switch would be a good way to put this discussion to bed? Test pressure with and without the turbo feed, and that would tell if the head gallery is being starved.
However Dan suggested that drag cars have gone many miles without issues in that configuration. I will run the block feed on the intake side personally. |
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are those rubber hoses? lololol
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1 Attachment(s)
Originally Posted by 18psi
(Post 1455072)
are those rubber hoses? lololol
Attachment 230543 |
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