Omega Owners Forum

Chat Area => General Car Chat => Topic started by: tidla on 09 September 2014, 18:33:50

Title: multiram
Post by: tidla on 09 September 2014, 18:33:50
I have owned the vehicle since 2010, most journeys are to the supermarket and back with er indoors, so driving like im from Northampton rarely happens.

Spurred on by a certain bears enthusiasm i thought i would check pipe routing and connections out of interest just to see if all was correct.

All being connected correctly , using a multivac guage to check for vaccuum to the electrical valve and then after on blipping the throttle.

(http://i1114.photobucket.com/albums/k536/tidla1/20140909_163912_resized_zps5ea05e61.jpg)

Further digging found the small hose which connects to the "T" piece at the front multi ram split on the underside.

(http://i1114.photobucket.com/albums/k536/tidla1/20140909_170751_resized_zps3f593e61.jpg)

Road test later..
Title: Re: multiram
Post by: Kevin Wood on 10 September 2014, 00:31:12
Yep, lost count of the number of those vac pipes by the T pieces I've found in that state. Very common problem. :y
Title: Re: multiram
Post by: Webby the Bear on 10 September 2014, 09:28:23
I have owned the vehicle since 2010, most journeys are to the supermarket and back with er indoors, so driving like im from Northampton rarely happens.

Spurred on by a certain bears enthusiasm i thought i would check pipe routing and connections out of interest just to see if all was correct.

All being connected correctly , using a multivac guage to check for vaccuum to the electrical valve and then after on blipping the throttle.

(http://i1114.photobucket.com/albums/k536/tidla1/20140909_163912_resized_zps5ea05e61.jpg)

Further digging found the small hose which connects to the "T" piece at the front multi ram split on the underside.

(http://i1114.photobucket.com/albums/k536/tidla1/20140909_170751_resized_zps3f593e61.jpg)

Road test later..

TB lives in Brackley...  ;D ;D ;D

Good job mate! :)
Title: Re: multiram
Post by: Webby the Bear on 10 September 2014, 09:32:47
Ps, i'm presuming you could test those multiram vac lines with carb cleaner??? (thinking aloud as i dont have a vac gauge :()
Title: Re: multiram
Post by: Marks DTM Calib on 10 September 2014, 10:26:59
Ps, i'm presuming you could test those multiram vac lines with carb cleaner??? (thinking aloud as i dont have a vac gauge :()
Not to be recommended as carb cleaner attacks many types of plastic  :y
Title: Re: multiram
Post by: Webby the Bear on 10 September 2014, 10:45:29
Ps, i'm presuming you could test those multiram vac lines with carb cleaner??? (thinking aloud as i dont have a vac gauge :()
Not to be recommended as carb cleaner attacks many types of plastic  :y

Ok :) water would work though :) im presuming youd get the same type of hissing you would if you found a vac leak?
Title: Re: multiram
Post by: 05omegav6 on 10 September 2014, 11:05:33
Could the rubber connections be replaced with silicon ones :-\
Title: Re: multiram
Post by: Webby the Bear on 10 September 2014, 13:47:35
Ooooooh just had a thought. When looking for vac leaks at the multirams...... would they have to be in use (i.e. above set RPM) or are they under vacuum constantly (thus i can spray them at idle and see if theres any vac leak)?

:)
Title: Re: multiram
Post by: 05omegav6 on 10 September 2014, 13:52:18
Need tech 2 to trigger them unless you rev it :y

Front is circa 3k rpm and rear is circa 4k rpm iirc :-\

MarksDTM wrote a detailed explanation of them  :y in FAQ iirc...
Title: Re: multiram
Post by: Marks DTM Calib on 10 September 2014, 13:55:03
Ps, i'm presuming you could test those multiram vac lines with carb cleaner??? (thinking aloud as i dont have a vac gauge :()
Not to be recommended as carb cleaner attacks many types of plastic  :y

Ok :) water would work though :) im presuming youd get the same type of hissing you would if you found a vac leak?

How is water going to work?
Title: Re: multiram
Post by: Webby the Bear on 10 September 2014, 14:00:39
Ps, i'm presuming you could test those multiram vac lines with carb cleaner??? (thinking aloud as i dont have a vac gauge :()
Not to be recommended as carb cleaner attacks many types of plastic  :y

Ok :) water would work though :) im presuming youd get the same type of hissing you would if you found a vac leak?

How is water going to work?

To find vac leaks. gets sucked in and makes the same hissing sound as carb claener does.....
Title: Re: multiram
Post by: 05omegav6 on 10 September 2014, 14:18:16
And where does the vacuum (and all that water) go... ::)
Title: Re: multiram
Post by: Webby the Bear on 10 September 2014, 14:29:13
LOL yeah but we're only talking a slight mist  ;D
Title: Re: multiram
Post by: omega3000 on 10 September 2014, 15:03:17
(http://i219.photobucket.com/albums/cc41/milleblack/images1_zpsac7e5127.jpg)


 ;D
Title: Re: multiram
Post by: 05omegav6 on 10 September 2014, 16:10:10
LOL yeah but we're only talking a slight mist  ;D
The only reason carb cleaner works is that it acts as extra fuel, causing the revs to rise momentarily :y

Water doesn't burn, ergo will do nothing but put water where water shoud not be put ::)

Better off using a can of lynx than water...
Title: Re: multiram
Post by: Nick W on 10 September 2014, 16:50:04
You use carb cleaner to narrow down where to look for vacuum leaks, by gently spraying it around inaccessible joints. If the rpms rise, that's where to investigate further.

This isn't necessary for checking the multirams, or heater solenoids etc, as you can easily remove the short lengths of rubber hose that join the nylon pipes and examine each of them for damage. The rubber hose is readily available, and cheap so dealing with any issues is straightforward. Nylon pipe is used in air systems, so isn't difficult to source either.
Title: Re: multiram
Post by: Webby the Bear on 10 September 2014, 19:37:52
Fair enough lads..... could have sworn I saw a vid on using water though  :-\

 :y :y :y
Title: Re: multiram
Post by: tidla on 11 September 2014, 17:33:24
Fair enough lads..... could have sworn I saw a vid on using water though  :-\

 :y :y :y

That was for fixing your puncture on your bmx.
Title: Re: multiram
Post by: chrisgixer on 11 September 2014, 17:48:18
Carb cleaner evaporates very quickly as it's designed to. The vapour is flammable. Once drawn in through any vacuum leak it combusts in the cylinder and the revs increase. Spray it in the right place and the revs go up, you know the induction system has a leak.


In practice the leak needs to be prety severe for it to work ime. So an audible hiss is often a bigger clue.

Carb cleaner is clear. So could be mistaken for water. I suppose.
Title: Re: multiram
Post by: omega3000 on 12 September 2014, 18:37:10
Fair enough lads..... could have sworn I saw a vid on using water though  :-\

 :y :y :y

That was for fixing your puncture on your bmx.

 ;D ;D ;D :D