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Aug 24th, 2023
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Joined: Feb 2013
Posts: 425
Learner Plates Off!
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OP
Learner Plates Off!
Joined: Feb 2013
Posts: 425 |
As I am about to take my GDI Plus 4 in for a service and MOT tomorrow I decided to check the contents of the catch can I fitted about a year ago. Absolutely nothing was in there, not even any moisture.I really don't know if this is a good thing or my particular catch can is not up to scratch. I know a few of you have fitted catch cans and wonder what your experience is. ![[Linked Image]](https://www.tm-img.com/images/2020/07/22/P1000282a.jpg)
John
2015 Plus 4 (GDI) Sport Green
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Joined: Aug 2015
Posts: 1,578 Likes: 105
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Aug 2015
Posts: 1,578 Likes: 105 |
How is the catch tank vented?
Why would you need one anyway?
Arwyn
Last edited by Arwyn Williams; 22/07/20 10:44 AM.
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Joined: Feb 2010
Posts: 1,415
Has a lot to Say!
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Has a lot to Say!
Joined: Feb 2010
Posts: 1,415 |
Why would you need one anyway?
Arwyn
Because the GDI engines don't wash the ports with fuel, any crankcase oil that goes up the breather can clag up the back of the back of the valves . We've gone back to the days of engines needing a decoke at low miles..... 
Simon @ Sifab.co.uk
Sifabtemporary@gmail.com
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Joined: Jan 2007
Posts: 2,384 Likes: 56
Talk Morgan Expert
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Talk Morgan Expert
Joined: Jan 2007
Posts: 2,384 Likes: 56 |
I thought the Duratec in our plus four was a pearler of an engine you could really wind it up and gave a regular 36 to 38 mpg the Gdi felt a bit rough at the top end and one of our Taffmoggers always had soot around the exhaust. I now know the reason why, one of the last galve chasis cars with a duratec seems a good bet if someone is looking pre loved.
Em
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Joined: Dec 2008
Posts: 21,871 Likes: 168
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 21,871 Likes: 168 |
The AR flash greatly improves revving higher up the range and significantly reduces the sooty exhaust. The difference is significant.
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Joined: Jan 2007
Posts: 2,384 Likes: 56
Talk Morgan Expert
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Talk Morgan Expert
Joined: Jan 2007
Posts: 2,384 Likes: 56 |
Any upgrade is good Dave but that particular one come's at a cost and it can't adress the crank case breather issue.
Em
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Joined: Jun 2015
Posts: 1,961 Likes: 43
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Jun 2015
Posts: 1,961 Likes: 43 |
As I am about to take my GDI Plus 4 in for a service and MOT tomorrow I decided to check the contents of the catch can I fitted about a year ago. Absolutely nothing was in there, not even any moisture.I really don't know if this is a good thing or my particular catch can is not up to scratch. I know a few of you have fitted catch cans and wonder what your experience is. If the plumbing is such that the fumes have an uphill travel, is it possible that they condense on the inner walls of the piping and run back from whence they came, before reaching the can?
Doug
2011 Plus 4 in Rich Maroon
1972 750 “ComDom” sprinter
1958 Triton 650
1992 Triumph Trophy 900
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Joined: Feb 2013
Posts: 425
Learner Plates Off!
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OP
Learner Plates Off!
Joined: Feb 2013
Posts: 425 |
Good point Doug, I'll have a go at re-routing the hoses.
John
2015 Plus 4 (GDI) Sport Green
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Joined: Oct 2019
Posts: 5,055 Likes: 318
Charter Member
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Charter Member
Joined: Oct 2019
Posts: 5,055 Likes: 318 |
Athelstan ..... I think the oil condensing and returning to the sump is a good thing, before you re-route your pipes .... catch can is a bit like a fire extinguisher .... nice to have it for peace of mind (and a requirement for racing) but you don't really want to use it if possible.  K
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Joined: Aug 2015
Posts: 1,578 Likes: 105
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Aug 2015
Posts: 1,578 Likes: 105 |
One of the lads I was on the spanners for a couple of years ago ran a 2.1 Pinto which was absolutely shagged but still knocked the power out. It breathed a bit heavy though probably half a pint on a stage
The queue for a stage start saw the co driver get out, open the bonnet, remove the catch tank, open the boot, tip the oil back into the dry sump tank, refit the catch tank and close the bonnet, whack the pins back in and get in ready for the stage start!
Arwyn
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