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Two questions regarding 98 +8 #611265
05/01/20 05:58 PM
05/01/20 05:58 PM
Joined: Apr 2017
Posts: 34
Sweden
Bjorn V Offline OP
Just Getting Started
Bjorn V  Offline OP
Just Getting Started

Joined: Apr 2017
Posts: 34
Sweden
Hi everyone,

I have two things I wonder a bit about on my car. it is a -98 +8 (4,6L engine). I wolud like to have your thinking on these matters.

1:
The cooling fan of the car in temperature controlled. Under a certain temperature the fan stops. No problem there. But it would be nice to be able to turn it on manually. Sometimes it feels like it turns on a bit late. The picture here below shows a bit of the car.
The temperature sensor is located in the radiator, left side of picture. Behind the Photobucket watermark. I guess that the fan starts when there is contact between the two cables. I am thinking about a way to have a manual control also. Any suggestions on the easiest way to accomplish this?
[Linked Image]

2:
The battery is located rear of the seats, next to the rear axle. How do you get it out? Do you have to do that from below?
[Linked Image]

Best Regards


Greetings from Sweden.
Morgan +8 1998
Re: Two questions regarding 98 +8 [Re: Bjorn V] #611266
05/01/20 06:40 PM
05/01/20 06:40 PM
Joined: Dec 2009
Posts: 26,732
Devonshire
+8Rich Offline
Member of the Inner Circle
+8Rich  Offline
Member of the Inner Circle

Joined: Dec 2009
Posts: 26,732
Devonshire
A single pole switch wired across (parallel) the radiator temperature sensor will over ride this function when you feel it necessary, be sure to add an inline fuse though. overide switch

The battery comes out from the top once you remove the saddle board.


Regards Richard

1999 Indigo Blue +8
2009 4/4 Sport Green prev
1994 Connaught Green +8 prev





Re: Two questions regarding 98 +8 [Re: Bjorn V] #611267
05/01/20 06:42 PM
05/01/20 06:42 PM
Joined: Dec 2007
Posts: 530
Beaumont de Lomagne, France
P
Philippo Offline
Talk Morgan Regular
Philippo  Offline
Talk Morgan Regular
P

Joined: Dec 2007
Posts: 530
Beaumont de Lomagne, France
Hello Bjorn

Good chance that the wire from the temperature sensor, if it's switching the fan, is an earth that goes to a terminal on a relay. Ideally you need to find this relay then add an additional wire to the same terminal and then through a separate switch to an earth. Send me a pm if you want to discuss further.

Cheers

Philip


Philip

In-build 1985 +8 4 seater
Malone F1000 - track car
Re: Two questions regarding 98 +8 [Re: Bjorn V] #611269
05/01/20 06:45 PM
05/01/20 06:45 PM
Joined: Dec 2011
Posts: 1,943
Seattle, USA
B
Button Offline
Talk Morgan Enthusiast
Button  Offline
Talk Morgan Enthusiast
B

Joined: Dec 2011
Posts: 1,943
Seattle, USA
On #1 go to GOMOG.com

#2 is a problem. I would suggest removing the seats and removing the plywood divider and scoot the battery into the seat well. b. Or drop out the bottom.


Button
Re: Two questions regarding 98 +8 [Re: Bjorn V] #611285
05/01/20 08:01 PM
05/01/20 08:01 PM
Joined: Apr 2014
Posts: 4,960
Llanelli
Ray Offline
Part of the Furniture
Ray  Offline
Part of the Furniture

Joined: Apr 2014
Posts: 4,960
Llanelli
It should come out the top. Can be difficult to grip, but can be done.


.+8 Now gone for a 1800 4/4. Duratec in bright yellow.
Re: Two questions regarding 98 +8 [Re: Bjorn V] #611320
06/01/20 08:09 AM
06/01/20 08:09 AM
Joined: May 2007
Posts: 969
Walsall, uk
R
robmog88 Offline
Talk Morgan Regular
robmog88  Offline
Talk Morgan Regular
R

Joined: May 2007
Posts: 969
Walsall, uk
Since I fitted a mulberry aluminium radiator to my 98 4.6 plus 8 I’ve had no issues.
The fan kicks in when necessary, I don’t feel the need to install a manual override switch.
But I guess each to their own

Re: Two questions regarding 98 +8 [Re: Bjorn V] #611324
06/01/20 08:40 AM
06/01/20 08:40 AM
Joined: Jul 2007
Posts: 19,159
Suffolk
John V6 Offline
Member of the Inner Circle
John V6  Offline
Member of the Inner Circle

Joined: Jul 2007
Posts: 19,159
Suffolk
My 97 +4 had an ali plate behind the passenger seat. Remove that and the battery comes out that way. On my 94 4/4 I had to jack up the car & lower it out.


JohnV6
2006 Indigo Blue Roadster S1
2014 Brooklands Edition Roadster "Brookland's Belle" #5 of 50
Re: Two questions regarding 98 +8 [Re: Bjorn V] #611335
06/01/20 10:00 AM
06/01/20 10:00 AM
Joined: Sep 2014
Posts: 1,820
London
MOG 615 Offline
Talk Morgan Enthusiast
MOG 615  Offline
Talk Morgan Enthusiast

Joined: Sep 2014
Posts: 1,820
London
Bjorn

I have just fitted an over-ride fan switch to my 1999 +8 , so can show you what I have done. I can't claim any credit for this , my good friend Colin (Spanner Juggler on here) gave me all the design and details I needed.

1 Fit 2 "piggy-back" connectors to the temperature switch.
I appreciate you won't have Halfords in Sweden , but these must be available locally somewhere.

https://www.halfords.com/workshop-t...-connectors-15-amp-semi-insulated-hef383

2 Connect 2 cables (15 amp is more than sufficient , you are only carrying the signal voltage which is low current) which are long enough to go from the switch to the dashboard and have some spare just in case. I covered these in electrical trunking to match others in the engine bay and ran them under the intake manifold and plenum assembly through one of the existing bulkhead grommets.

3 Now the decision is how to rig up a switch , the GoMog site recommends a separate switch under the dash but easily accessible. As I don't have any auxiliary spot lights fitted I was able to use the spot light switch. I just disconnected the existing wiring , taped it up, and connected my 2 wires to the same switch.

Let me know if this is not clear and I will endeavour to send you some photos of the finished work.

Once again thanks to Colin for helping me through this project. It is well worthwhile as it enables me to switch on the fan before I come to rest so that I can reduce the temperature , and prevent the normal heat soak that occurs as the engine cools.

Good luck


Andy G
1999 +8 , Indigo Blue.
Ex-John McKecknie/Mike Duncan 1955 +4 racer.
Re: Two questions regarding 98 +8 [Re: Bjorn V] #611362
06/01/20 01:46 PM
06/01/20 01:46 PM
Joined: May 2010
Posts: 7,715
Llanelli
sospan Offline
Talk Morgan Guru
sospan  Offline
Talk Morgan Guru

Joined: May 2010
Posts: 7,715
Llanelli

I have a 2002 Plus8 .
It does not overheat but the fan does come on and is clearly heard.
Aluminium radiator ( maybe Morgan original as no details of changes in the car’s history file).
The fan kicks in at 95 on the temperature gauge. It has the temp sensor switch in the top tank, left side.
In summer the car runs at 85-90 deg so the fan can cut in when in slow traffic/ on stop as airflow is gone.
In winter she is currently running at about 80 deg and fan rarely cuts in ( needs longer on stop to get hotter). Last autumn I fitted bonnet extenders to open the rear of the bonnet to help air escape and theoretically improve airflow. This appears to have reduced coolant temp by a couple of degrees to just below the previous temp. I am hoping summer temps will improve as well.
I am considering fitting airscoop/ducting to improve airflow further but space is at a premium. Looking at ideas at the moment.


Red Plus8
Re: Two questions regarding 98 +8 [Re: Bjorn V] #611384
06/01/20 05:01 PM
06/01/20 05:01 PM
Joined: Mar 2007
Posts: 1,575
Sevenoaks,Kent
Viper Offline
Sir S1'a'lot
Viper  Offline
Sir S1'a'lot
Talk Morgan Enthusiast

Joined: Mar 2007
Posts: 1,575
Sevenoaks,Kent
I’ve only just bought my 4.6 but nice it rubs nice and cool but almost immediately after I stop in traffic it climbs quickly and fans are on constantly.

God knows what will happen in the summer


2000 Plus 8 4.6
2002 Aero 8 S1
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