PDA

View Full Version : removing intake manifold without unhooking coolant line. is it possible?



seanentrust
02-25-2013, 04:55 PM
so im in the process of removing my intake manifold to get to my crankcase breather and it doesnt seem possible without unhooking the hard coolant pipe?

thanks

98A4TurboAWD
02-25-2013, 05:00 PM
so im in the process of removing my intake manifold to get to my crankcase breather and it doesnt seem possible without unhooking the hard coolant pipe?

thanks

You can replace that tube without removing the manifold.

There is a nut or bolt that holds that tube to the manifold. You may be able to remove this and then pull the intake out without removing that pipe.

Seerlah
02-25-2013, 05:13 PM
I remember I did not remove my hard pipe when I replaced my pcv valve when I was still running one. It can be done and I had no intention of removing mine when I replaced my pcv valve. Installed my oil pressure gauge without removing it also.

I actually ended up taking the tabs off my hard piping on the coolant with a cutting wheel, ground it down, and painted it. It is basically just one solid straight piece of metal now. It is held in place currently purely by the rear coolant flange and upper rubber radiator hose. I fiddle with my car a lot, and this just makes things easier.

seanentrust
02-25-2013, 05:38 PM
well with a lot of wiggling and cursing i got it out! now ive discover the crankcase breather tube was destroyed, not a big surprise. but also ive found another mystery line that seems to be broken but im not sure where it goes?

manifold out
http://farm9.staticflickr.com/8090/8507975457_7319fa5b3a_b.jpg

mystery line?
http://farm9.staticflickr.com/8526/8509083644_99221e1ec3_b.jpg

ewww
http://farm9.staticflickr.com/8094/8507977199_8621d8eb53_b.jpg
http://farm9.staticflickr.com/8517/8507978269_620fa943d6_b.jpg

Seerlah
02-25-2013, 07:39 PM
Replace your PCV valve now while you are in there. It is probably already shot for all you know. And that broken line is an evap line from your leak detection pump. It is routed to a big nipple port underneath the throttle body on the intake manifold. Flip your manifold upside down and you will see it. Should be that one, anyways.

seanentrust
02-25-2013, 07:49 PM
Replace your PCV valve now while you are in there. It is probably already shot for all you know. And that broken line is an evap line from your leak detection pump. It is routed to a big nipple port underneath the throttle body on the intake manifold. Flip your manifold upside down and you will see it. Should be that one, anyways.

forgive my stupidness but where is the PCV valve? also the broken line turned out to be a coolant line, must have busted it today :( gotta love 15 year old plastic

Seerlah
02-25-2013, 07:58 PM
That is not a coolant hose (in the second pic). I am pretty sure that is the line from your leak detection pump.

Your PCV valve is your pressure control valve. Here is is pictured below in the link. 034 (second link) sells a better billet alternative that won't fail (or shouldn't).

http://www.ecstuning.com/Audi-B5_A4-Quattro-1.8T/Search/Pcv/ES257303/

http://www.034motorsport.com/engine-components-18t-check-valve-18t-27t-aan-pcv-billet-p-21834.html

Right off your crank case breather hose there will be a rubber "t". Out of one of those ports sits your pcv valve.

seanentrust
02-25-2013, 08:06 PM
That is not a coolant hose (in the second pic). I am pretty sure that is the line from your leak detection pump.

Your PCV valve is your pressure control valve. Here is is pictured below in the link. 034 (second link) sells a better billet alternative that won't fail (or shouldn't).

http://www.ecstuning.com/Audi-B5_A4-Quattro-1.8T/Search/Pcv/ES257303/

http://www.034motorsport.com/engine-components-18t-check-valve-18t-27t-aan-pcv-billet-p-21834.html

Right off your crank case breather hose there will be a rubber "t". Out of one of those ports sits your pcv valve.

ok i just took a picture of where it broke off
http://farm9.staticflickr.com/8367/8509401826_ee739d251e_b.jpg

Seerlah
02-25-2013, 08:14 PM
I am not sure what I am looking at now. It's late and I'm tired. So it was a coolant hose. Could have sworn it was an evap hose cut off after a check valve. With the above pic, I don't know what I am looking at. Maybe walky_talky20 will chime in.

seanentrust
02-25-2013, 08:17 PM
I am not sure what I am looking at now. It's late and I'm tired. So it was a coolant hose. Could have sworn it was an evap hose cut off after a check valve. With the above pic, I don't know what I am looking at. Maybe walky_talky20 will chime in.

I don't know either? Maybe it not coolant line? The broken parts looks like it goes into the fender so that doesn't seem like a coolant line?

Seerlah
02-25-2013, 08:22 PM
If it goes into the fender that is your evap line from your leak detection pump. With a check valve on it?

seanentrust
02-25-2013, 08:35 PM
If it goes into the fender that is your evap line from your leak detection pump. With a check valve on it?

Ok thanks. I guess I need to get a new t fitting tomorrow to fix it