Click here to return to the home page.
Morgan 3 Wheeler
Who's Online Now
8 members (Black Adder, Luddite, MATTMOG, RedThree, Morganmike, stumog, JohnHarris, bmgermany), 224 guests, and 35 robots.
Key: Admin, Global Mod, Mod
Top Posters(30 Days)
+8Rich 96
John V6 51
Newest Members
phenompilot52, Orjan, John Courtney, vince Indiana US, Garage Andreas
9,635 Registered Users
Newest Topics
New to me plus 4
by SailingTom2 - 12/09/26 06:24 AM
Hot Bonnet
by Carbuilder - 11/09/26 11:21 PM
morgan supersport 357 miles
by Nick_H - 09/09/26 09:13 PM
M3W Treffen 2027
by Laurens - 09/09/26 08:12 PM
Changing the Colour of a Tonneau Cover..
by flyfisher - 09/09/26 06:33 PM
To our Norwegian friends
by bmgermany - 09/09/26 05:14 PM
Sold
by simon8201 - 09/09/26 01:46 PM
Latest Photos
New to me 95 plus 4 daily driver
New to me 95 plus 4 daily driver
by SailingTom2, September 12
1989 Morgan Plus 4 in Ontario, Canada
1989 Morgan Plus 4 in Ontario, Canada
by Carbuilder, September 5
First anniversary of Plus 4
First anniversary of Plus 4
by Strathaven, September 5
Wales
Wales
by Joske Vermeule, September 1
Engine/Gearbox Separator CX Models
Engine/Gearbox Separator CX Models
by number thirteen, August 30
Forum Statistics
Forums39
Topics49,900
Posts838,037
Members9,635
Most Online1,063
Jun 14th, 2026
Today's Birthdays
There are no members with birthdays on this day.
Previous Thread
Next Thread
Print Thread
Page 4 of 4 1 2 3 4
Joined: Feb 2019
Posts: 3,857
Likes: 2
Talk Morgan Addict
Offline
Talk Morgan Addict
Joined: Feb 2019
Posts: 3,857
Likes: 2
Originally Posted by planenut

Yes I do. Just run the pump by turning the ignition on and it should show the regulated pressure on a gauge at the test point and hold pressure for a few minutes. It will dissipate over an hour or so. If you have a super "Emil style" fuel system I am told the pressure drops off almost immediately the pump stops but the standard Mahle type filter/regulator should hold pressure for some time.



Sounds like Emils system is a more safe system. Who needs fuel pressure after and emergency shutdown from a fire!?!


2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)

Joined: Jun 2012
Posts: 2,242
Likes: 72
Talk Morgan Expert
Offline
Talk Morgan Expert
Joined: Jun 2012
Posts: 2,242
Likes: 72

I don't think it is a safety issue but just the way the pressure regulator works. I am sure the regulator in Emils system regulates the pressure more accurately than the Mahle filter /regulator but the Mahle one has to comply with it's OEM specification that says it has to hold pressure after supply stops for a time, probably because most engines fire up quicker than the X-wedge if they stall. I imagine it is easier to regulate a constant leak rate than to hold a pressure when the supply is gone, particularly for a combined filter and regulator that is a throw away item built to a price of about £40. Agreed that in our installation there is no need for the system to hold pressure for any length of time but most of these filter/regulators do just that.

Joined: Nov 2020
Posts: 51
Likes: 2
2
Just Getting Started
Offline
Just Getting Started
2
Joined: Nov 2020
Posts: 51
Likes: 2
Anyone know what the correct spark plug gap is for the M3W I just changed my champion RA8HC plugs. One was set at 28 and the other at 30.
I put in NGK DCPR7EIX and out of the box they are 28. I put them in as out of the box 28.
I dont see any difference between the two. Seems to start the same and took it for a short
drive. All seems normal. My old plugs only had 3300miles but I read on a face book users page
that the NGK plugs help with starting. My old plugs still look good so will keep them as spares.

Joined: Aug 2012
Posts: 2,360
Likes: 2
Talk Morgan Expert
Offline
Talk Morgan Expert
Joined: Aug 2012
Posts: 2,360
Likes: 2
Originally Posted by 2017 Betty
Anyone know what the correct spark plug gap is for the M3W I just changed my champion RA8HC plugs. One was set at 28 and the other at 30.
I put in NGK DCPR7EIX and out of the box they are 28. I put them in as out of the box 28.
I dont see any difference between the two. Seems to start the same and took it for a short
drive. All seems normal. My old plugs only had 3300miles but I read on a face book users page
that the NGK plugs help with starting. My old plugs still look good so will keep them as spares.


Same for me
Thé only big difference is the price

Joined: Jun 2015
Posts: 580
Likes: 2
Talk Morgan Regular
OP Offline
Talk Morgan Regular
Joined: Jun 2015
Posts: 580
Likes: 2
I think with the big fat spark of modern electronic ignition systems, spark plug gaps are far less critical than they used to be. Obviously for Raphy and me running our S&S engines in a hot climate, where cylinder head temperatures get quite high, especially if using the original baffled exhaust system (my cylinder head temperatures dropped over 40ºC by changing to G56 non-baffled exhausts), resistance to thermal erosion is an important consideration on the plugs and that is why I use Iridium plugs. I would think Bosch platinum plugs, like Porsche recommend for their turbo engines, would be equally good.

Wilson

Page 4 of 4 1 2 3 4

Moderated by  TalkMorgan 

Link Copied to Clipboard
Powered by UBB.threads™ PHP Forum Software 7.7.5