Plugging the intake ports
#1
Plugging the intake ports
I know I've seen some of you with those colorful or even just aluminum intake plugs.
Internal allen head or sometimes called inset socket head plugs in metric seem to be impossible to find.
Summit only has standard threads and sizes, no metric.
I've tried Home Depot, some local import performance shop, Tacoma Screw, and another bolt specialty shop. Nobody has anything close! They only have course thread.
I took the bypass valve and the little vacuum port off the turbo intake into Home Depot. Using their examples I figured out what I need.
12M 1.25 pitch
16M 1.25 pitch
Where can I order these????
and I'm sure the POV is probably even larger.... 22M ?? I'm leaving mine on for a while though so I'm not going to worry about that one.
Internal allen head or sometimes called inset socket head plugs in metric seem to be impossible to find.
Summit only has standard threads and sizes, no metric.
I've tried Home Depot, some local import performance shop, Tacoma Screw, and another bolt specialty shop. Nobody has anything close! They only have course thread.
I took the bypass valve and the little vacuum port off the turbo intake into Home Depot. Using their examples I figured out what I need.
12M 1.25 pitch
16M 1.25 pitch
Where can I order these????
and I'm sure the POV is probably even larger.... 22M ?? I'm leaving mine on for a while though so I'm not going to worry about that one.
#5
custom order from where? I'd think I should be able to order some online since I know just what I need. $-5 each is expected but I can't find them anywhere. People on this forum told me to just go to Home Depot... ha!
The 12m fits several spots on the intake. The 16M is for the turbo bypass valve. The EGR is blocked by a plate as is the AAC valve
I'll take a Vashon Island Ice Tea
The 12m fits several spots on the intake. The 16M is for the turbo bypass valve. The EGR is blocked by a plate as is the AAC valve
I'll take a Vashon Island Ice Tea
#7
Originally Posted by Bleach
and I'm sure the POV is probably even larger.... 22M ?? I'm leaving mine on for a while though so I'm not going to worry about that one.
#8
we got a custom bolt place near by, i think they make weird stuff like that, i got bolts that plug the egr tube on the header from them. dont forget this is canada, land of weird metric! ill phone today for ya
#9
I think its rediculous that Summit only lists SAE sizes... especially with the high number of import performance parts they carry.
A lot of their stuff says NPT. National Pipe Thread.... would this by chance happen to be 1.25 metric? If so, a 1/2 might be 12M.
A guy down in Portland had these plugs on his turbo Z.
the pic has a line to the 12M 1.25 port.
I suppose the other 8M or 10M plugs I can find. small stuff seems to be easy. But I'm using all my small vacuum ports that I remember.... boost gauge, FPR, heater controls. So I have three lines coming off my intake.
anyway, I may be able to find a cap for the bypass valve and leave that one plugged in. (not as pretty)
for all I know maybe he just re-tapped the POV and put a big pipe plug in there with course threads. oh, and I have a Z31 I can get parts off of. I might take the POV plug
A lot of their stuff says NPT. National Pipe Thread.... would this by chance happen to be 1.25 metric? If so, a 1/2 might be 12M.
A guy down in Portland had these plugs on his turbo Z.
the pic has a line to the 12M 1.25 port.
I suppose the other 8M or 10M plugs I can find. small stuff seems to be easy. But I'm using all my small vacuum ports that I remember.... boost gauge, FPR, heater controls. So I have three lines coming off my intake.
anyway, I may be able to find a cap for the bypass valve and leave that one plugged in. (not as pretty)
for all I know maybe he just re-tapped the POV and put a big pipe plug in there with course threads. oh, and I have a Z31 I can get parts off of. I might take the POV plug
#10
i just used them from autozone. since i don't care for my intake. cause i am gona use a diff one soon. I just screwd them in till they stoped. they stick above a lil. but they don't leak. if your paraniod about it. a lil thread locker would seal everything up nicely
#12
Originally Posted by Bleach
so you used the wrong thread is what you're saying... and just forced it in there.
hmmmm..... interesting.... just jam it in there
kinda like forced induction?
hmmmm..... interesting.... just jam it in there
kinda like forced induction?
I got some plugs from autozone for the turbo car, but I have a Fastenal nearby, and will try them to see if they have something shallower in depth hex head in stainless, as I want a nicer look to the manifold on the turbo car.
They have 10 locations near you...which brings me to a question bleach, where bouts in Seattle do you live? I used to ship out of Seattle, and lived next to Gas Works Park, on an old tug boat on N. Northlake Way, in an old ship yard. Used to drink a LOT of Ballard Bitter! At a pub near the Aurora Bridge, I miss the "fablulous 4th" of July fireworks on Lake Union put on by the ice cream company???fratanellies??something like that???
http://www.fastenal.com/web/location...attle&state=WA
If Fastenal doesn't have it, they can size up the thread pitch and depth you need and order it for you.
kenny.
Last edited by captken; 01-09-2007 at 05:54 PM.
#13
I went to Autozone. They don't have them.
They have them in NPT for American V8's, just like Summit. I'm tempted to think you guys that used plugs just screwed in the wrong thread. Not only are they not a metric thread but they use a more course thread.
I did find a M12 1.25 oil pan bolt that matches the thread of one of the smaller ports. (in theory) I have not test fitted it yet... we had a heavy snow last night in Seattle. Rockin' the Pulsar today. FWD!
ok, so maybe I can live without that cool inset socket head. Next up I'll go look for just a plain old hex head bolt that is M16 1.25 crap, they probably had that at Tacoma Screw...
They have them in NPT for American V8's, just like Summit. I'm tempted to think you guys that used plugs just screwed in the wrong thread. Not only are they not a metric thread but they use a more course thread.
I did find a M12 1.25 oil pan bolt that matches the thread of one of the smaller ports. (in theory) I have not test fitted it yet... we had a heavy snow last night in Seattle. Rockin' the Pulsar today. FWD!
ok, so maybe I can live without that cool inset socket head. Next up I'll go look for just a plain old hex head bolt that is M16 1.25 crap, they probably had that at Tacoma Screw...
Last edited by Bleach; 01-11-2007 at 08:47 AM.
#14
i did exactly what you said. Wrong thread and all. But it went right in. Just did not go all the way down. you can always cut the rest off. Or just weld up the hole. grind down. paint and call it a day.
#18
Well I'm not buying the SAE kit you have.
I went to Napa. The largest metric bolt they have is 16mm and not the right thread.
here's a pic of the oil drain bolt I got for the smaller vacuum port that has a line off of the main four.
I went to Napa. The largest metric bolt they have is 16mm and not the right thread.
here's a pic of the oil drain bolt I got for the smaller vacuum port that has a line off of the main four.
#20
yep any old machine shop should have these...
yep, stopped at a machine shop, one that rebuilds engines/heads, cost me 2 bucks for all of them. Exact replacement. Guy there took one look, matched all these up by memory!
Allen heads look good. Steel will clear coat with high temp spray to keep them good looking. shallow length, will fit flush.
Allen heads look good. Steel will clear coat with high temp spray to keep them good looking. shallow length, will fit flush.
Last edited by captken; 01-18-2007 at 07:39 PM.
#22
just lookin' It would fit..they both have square ports...
Originally Posted by FubarI33t
that better not be the 260 Intake/exhaust gasket i see.
They showed 2 part numbers, I went with the most expensive, 26.87. If thats not the right part, I'll sell it to you. You want a Nissan gasket over anything else.
I bought a Fel-Pro at Autozone, but will take that back tomorrow. Cheap cardboard....
I'll ask here too, which is the right Nissan part number?
14035-N3500 or
14035-P7100?
#23
Originally Posted by captken
yep, stopped at a machine shop, one that rebuilds engines/heads, cost me 2 bucks for all of them. Exact replacement. Guy there took one look, matched all these up by memory!
Allen heads look good. Steel will clear coat with high temp spray to keep them good looking. shallow length, will fit flush.
Allen heads look good. Steel will clear coat with high temp spray to keep them good looking. shallow length, will fit flush.
they are metric thread, right?
#25
Originally Posted by Bleach
that's what I need but can't get anywhere. Can you sell me a set of those?
they are metric thread, right?
they are metric thread, right?
If I can find more, no problem. He had to scrounge around bins at different work stations at the machine shop to get what I needed. I guess thats the reason he sold them for 2 bucks. No inventory, I had to brush them shiny with my dremel tool.
I'd be willing to bet that if you look for machine shops, probably around Tacoma, only because it is more industrial, you'd find what you need. Good grief! Boeing is there.
But if these work out okay, I haven't installed them yet, and if I can get more, sure I'd be more than glad to send you what you need.
kenny.
Last edited by captken; 01-19-2007 at 04:11 PM.