Mazda3 Forums banner

1 - 12 of 12 Posts

·
Registered
Joined
·
259 Posts
Discussion Starter #1
Hey guys,

I'm thinking of adding a catch can when I install the MS-CAI, what is the difference between the 9mm and the 15mm, is that just the size of the fittings or lines??

also has anyone actually done one on their MS3 yet, if so, let's see em pics!

Thanks
 

·
Registered
Joined
·
493 Posts
[quote author=Stan-O link=topic=72303.msg1274416#msg1274416 date=1174233751]
Hey guys,

I'm thinking of adding a catch can when I install the MS-CAI, what is the difference between the 9mm and the 15mm, is that just the size of the fittings or lines??

also has anyone actually done one on their MS3 yet, if so, let's see em pics!

Thanks
[/quote]

yeah i was also interesteed if i should do one too.
 

·
Registered
Joined
·
259 Posts
Discussion Starter #4
The catch can connect between the valve cover vent (PCV) and the intake. It's designed to catch the little bits of oil, gas and moisture blown through the turbo's bearings, preventing it from being circulated back into the intake. Not having one doesn't harm your engine, but having one helps with the preventative maintenance of cleaning the intake.

-not sure if i described that correctly, please correct me if i'm wrong, i know it also has to do with pressure in the crankcase pushing oil out the valve cover as well......

I'm considering adding one the same time as I install my MS-CAI.

I'm still looking for the answer to my original question, please people, advice would be beneficial......

-S
 

·
Registered
Joined
·
259 Posts
Discussion Starter #5
Okay after a little bit more searching, the 9mm and 15mm are the hose sizes.

Now can someone go measure the PCV line going to the intake so we all can figure out what to order......also if someone would be so kind as to snap a picture of the PCV line for illustration and post it.... ( I would love to do this but i'm out of town for the next week )

Thanks People
-S
 

·
Registered
Joined
·
759 Posts
[quote author=Stan-O link=topic=72303.msg1277473#msg1277473 date=1174351079]
Okay after a little bit more searching, the 9mm and 15mm are the hose sizes.

Now can someone go measure the PCV line going to the intake so we all can figure out what to order......also if someone would be so kind as to snap a picture of the PCV line for illustration and post it.... ( I would love to do this but i'm out of town for the next week )

Thanks People
-S
[/quote]
The line is the same as yours. It doesnt change with the CAI so you should be able to measure your own.
 

·
Registered
Joined
·
259 Posts
Discussion Starter #8
[quote author=Stan-O link=topic=72303.msg1277473#msg1277473 date=1174351079]
( I would love to do this but i'm out of town for the next week )
[/quote]

hence, no car here
 

·
Registered
Joined
·
162 Posts
Hmmm. I am wondering this same thing. I have seen several on the net. Does anyone have pics?
 

·
Registered
Joined
·
3,680 Posts
are you talking about the breather hose ?

i think you are, in that case, the hose size is 3/4" = 17-18mm ... was just measured this past weekend.

i think you should be fine with a 15mm, just make sure to lube it up !
 

·
Registered
Joined
·
368 Posts
[quote author=CaSHMeRe link=topic=72303.msg1532625#msg1532625 date=1183390221]
are you talking about the breather hose ?

i think you are, in that case, the hose size is 3/4" = 17-18mm ... was just measured this past weekend.

i think you should be fine with a 15mm, just make sure to lube it up !
[/quote]
3/4" is 19mm. Better put new batteries in your calculator.
 

·
Registered
Joined
·
3,680 Posts
[quote author=sergio link=topic=72303.msg1532712#msg1532712 date=1183392628]
[quote author=CaSHMeRe link=topic=72303.msg1532625#msg1532625 date=1183390221]
are you talking about the breather hose ?

i think you are, in that case, the hose size is 3/4" = 17-18mm ... was just measured this past weekend.

i think you should be fine with a 15mm, just make sure to lube it up !
[/quote]
3/4" is 19mm. Better put new batteries in your calculator.
[/quote]

haha, didn't use a calculator. i usually stick by rule of thumb. each 1/4" is approx: 6 mm
 
1 - 12 of 12 Posts
Top