rover3l123
Rover Fanatic
Originally from Llangollen area North Wales and relocated to the US in 1995 with the P5
Posts: 174
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Post by rover3l123 on Dec 29, 2020 15:45:47 GMT
I am struggling to find information on the correct fuse ratings for my P5 Mark 11c and I am also conscious of the different rating approach used in the UK versus USA (where I live). Can anyone advise what the UK based fuse ratings were for the Mark 11c?
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Post by Phil Nottingham on Dec 29, 2020 16:11:19 GMT
There are only 3 and they only barely protect the battery fused accessories ie Clock, cigar lighter and Interior lights, panel lights and ignition accessories but NOT Horns coil or Fuel pumps 15A for both Ign & batt will do except for Panel when its 5A and 25A in place of 15A if Cigar lighter is used. If overdrive is fitted the 4th spare fuse is 25A and a radio has 5A line fuse.
The lights apart from the panel are unfused
It is good idea to have extra fuses - certainly on lights and fuel pumps
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Post by ray on Dec 29, 2020 16:17:50 GMT
Fuse box, Mk ll sufrix'C'
Fuse-Marked I and 2 for windscreen wipers, heater,
direction indicators, stop lights, fuel level gauge,
fuel reserve switch and reverse light
Fuse-Marked 3 and 4 for inst'ument panel lights
Fuse-Marked 5 and 6 for overdrive unit
Fuse-Marked 7 and 8 for clock, map light, cigar lighter
and interior lights
Battery control, that is, clock,
cigai lighters, interior lights,
headrest light
lgnition control, that is, stoP,
reverse and flasher lights, screen
washer,.water tem Peratu.re and'
fuel gauges, tachometer, automatiC
tlansmission inhibitor
switch, oil pressure transmitter = 25
Parking lights 5
Side and tail lights 5
Panel lights 5
Headlamp RH main beam 10
Headlamp LH main beam 10
Headlamp RH dip beam . 10
Headlamp LH dip beam . 10
Screenwiper motor 15
Heater motor 15
Overdrive . . 25
Cheers Ray
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Post by Phil Nottingham on Dec 29, 2020 16:26:52 GMT
Fuse box, Mk ll sufrix'C' Fuse-Marked I and 2 for windscreen wipers, heater, direction indicators, stop lights, fuel level gauge, fuel reserve switch and reverse light Fuse-Marked 3 and 4 for inst'ument panel lights Fuse-Marked 5 and 6 for overdrive unit Fuse-Marked 7 and 8 for clock, map light, cigar lighter and interior lights Battery control, that is, clock, cigai lighters, interior lights, headrest light lgnition control, that is, stoP, reverse and flasher lights, screen washer,.water tem Peratu.re and' fuel gauges, tachometer, automatiC tlansmission inhibitor switch, oil pressure transmitter = 25 Parking lights 5 Side and tail lights 5 Panel lights 5 Headlamp RH main beam 10 Headlamp LH main beam 10 Headlamp RH dip beam . 10 Headlamp LH dip beam . 10 Screenwiper motor 15 Heater motor 15 Overdrive . . 25 Cheers Ray That is certainly not the case for our Mk2cs look to be Mk3? Where is your info from as not in line with WSM |
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Post by Ken Nelson on Dec 30, 2020 23:41:04 GMT
The fuse box on my MkIIC P5 (with o/d) just has the 4 fuses that Phil mentions. Attachments:
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Post by ray on Dec 31, 2020 8:10:32 GMT
Phil,
My information "said:Fuse box, Mk ll sufrix'C'" is taken out of the Rover WSM.
Regards Ray
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Post by Phil Nottingham on Dec 31, 2020 12:09:24 GMT
If you are reading from Sec S page 12 then the fuse ratings refer MK3s. The Mk2c is on the left bottom only. It could be clearer but the Mk3 ratings are a useful guide for fitting extra fusing which is advisable
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Post by ray on Dec 31, 2020 14:00:38 GMT
Yes Phil.
That is correct.
I hope Geraint has all the information that will assist him.
Regards Ray
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rover3l123
Rover Fanatic
Originally from Llangollen area North Wales and relocated to the US in 1995 with the P5
Posts: 174
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Post by rover3l123 on Jan 1, 2021 15:19:02 GMT
Thank you everyone for the inputs. Mine is the 4 fuse type and as I don't know / recall the history of the fuse replacements over the years, I wanted to get back to the basics of what each fuse should be.
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rover3l123
Rover Fanatic
Originally from Llangollen area North Wales and relocated to the US in 1995 with the P5
Posts: 174
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Post by rover3l123 on Jan 10, 2021 15:04:55 GMT
Looking into the fuse positions further, there seems to be a discrepancy between the Mk11c 4 fuse layout shown in the WSM Section S-6 page 12 and the wiring diagram on pages 46 and 47.
Page 12 shows the fuse marked 1-2 to be for items that are protected by fuse 3-4 on the wiring diagram and the fuse marked 7-8 to be for items that are protected by fuse 1-2 on the wiring diagram.
The only way to be sure is to remove one fuse at a time and determine which circuits don't work.
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rover3l123
Rover Fanatic
Originally from Llangollen area North Wales and relocated to the US in 1995 with the P5
Posts: 174
|
Post by rover3l123 on Jan 10, 2021 18:26:17 GMT
Looking into the fuse positions further, there seems to be a discrepancy between the Mk11c 4 fuse layout shown in the WSM Section S-6 page 12 and the wiring diagram on pages 46 and 47. Page 12 shows the fuse marked 1-2 to be for items that are protected by fuse 3-4 on the wiring diagram and the fuse marked 7-8 to be for items that are protected by fuse 1-2 on the wiring diagram. The only way to be sure is to remove one fuse at a time and determine which circuits don't work. By working through methodically, I confirmed that the work shop manual Section S-6 page 12 diagram is wrong, but the wiring diagram is correct. Additionally page 12 shows that the wiper motor and heater fan are part of a fused circuit. However, the wiring diagram shows that both of these items are not fuse protect. I further confirmed this by removing all 4 fuses and the wiper motor and heater fan motor still run! |
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Post by Ken Nelson on Jan 11, 2021 19:20:50 GMT
This all certainly reflects poorly on the accuracy of the workshop manual doesn't it? The section on tuning the carburetor on the 3-litre is completely wrong as well. Perhaps it is like the reply to the early Volkwagen question of why the left and right turn signal arrows on the dashboard blinked together (they had a single bulb for 2): "Sir, if you don't yourself know which way you are turning, you shouldn't be driving an automobile!"  |
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rover3l123
Rover Fanatic
Originally from Llangollen area North Wales and relocated to the US in 1995 with the P5
Posts: 174
|
Post by rover3l123 on Jan 11, 2021 20:35:46 GMT
This all certainly reflects poorly on the accuracy of the workshop manual doesn't it? The section on tuning the carburetor on the 3-litre is completely wrong as well. Perhaps it is like the reply to the early Volkwagen question of why the left and right turn signal arrows on the dashboard blinked together (they had a single bulb for 2): "Sir, if you don't yourself know which way you are turning, you shouldn't be driving an automobile!" Ken - It certainly does reflect poorly on the workshop manual which a bit worrying. Here is what I have managed to conclude which may be useful to someone else in the future. Fuse information in the Wiring Diagram for Mk 2CThe numbers 1 to 8 are the numbered positions within the fuse box. In the Mk2C there are four fuses and so numbers 1 and 2 relate to the first fuse (starting at the top) with 1 being the left hand side and 2 being the right hand side. 1 - Two braided brown wires 2 - Two purple plastic insulated wires - Cigar lighter, clock, interior lights, door switches (35A Fuse)3 - Three white braided wires, one of which is connected to fuse position 7 4 - Two green plastic insulated wires – Stop lights, reverse light, indicators, temp gauge, windscreen washer (35A Fuse)
5 - One red braided wire 6 - Red with purple stripe plastic wire – Instrument lights (3A Fuse)7 - White braided wire which connects to fuse position 3 8 - White with Yellow stripe plastic wire– Overdrive (35A Fuse)
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Post by Ken Nelson on Jan 12, 2021 13:53:26 GMT
Thanks David, that seems to be how my car is as well.
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Post by Phil Nottingham on Jan 12, 2021 21:41:03 GMT
There are numerous uncorrected errors in the WSM and in particular the wiring diagrams contain errors.
Only a few were corrected in later versions.
The colours above listed by Geraint tie in with the standard Lucas codes for that period which are logical and should be observed in all cases. Sometimes these are not connected correctly when repairs are carried out!
BLMC did not bother at all and just relied on Service Bulletins for any important discrepancies reported by Rover Service Agents.
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