Wipers & Sump plugs

Maurice Hickey

New Member
Hi,

I' ve got a few questions, to which i hope someone may have the answers and/or suggestions to:

(1) Firstly, the windscreen wiper delay on my series II 2000SC, works, but not intermittently. Does anybody have any ideas why it does'nt? - It functions okay on normal and fast speed.

(2) I need to do an oil & filter change, unfortunately the Sump plug on the left (as you face the front of the car) is impossible to remove as the shoulders of the brass sump plug have been rounded off, by a previous owner attempting to remove the plug. - I am aware of the second sump plug on the right hand side to the rear of the sump - Is it okay to undo this bolt and drain the oil from the sump or do i have to resort to the removing the sump etc.

Cheers
Maurice :(
 
Hi
The intermittent wiper problem is probably down to the vacuum line that runs from the wiper motor to the steering column, this is attached to the delay control, which is an air valve.
You could test this by manually pushing the vacuum plunger which is attached to the wiper motor. If it springs back straight away, then there is a problem with either the valve, line or plunger diaphragm.

As for the sump plug, I'll let somebody else answer that one !

Richard
Webmaster :)
 
I have the same problem as Maurice with my wiper delay mechanism. I have hopefully tested it as Richard suggested ,(I pushed the breech block up towards the piston in the governor.......was that correct?.) and it did spring back straight away. My question is........how do I fix it?.
Where is the valve and the plunger diaphragm?. I can see the line (is it the black tube that runs into the wiring loom through the bulkhead?).
I have a Haynes manual and looked at page 172 (diagram 10.23) but being a mechanical 'thicko' couldn't work out where the diaphragm is (is it in the governor?) or the valve Richard refers to.
Any help (preferably in words of one syllable and with drawings) gratefully received...........Thanks........Phil.
 
I had a similar problem with the wipers on my previous car. After removing the vacuum pipe from the delay unit, it was clear the latter was faulty, when I pushed plunger in, and placed my finger over the pipe connection point. I can't remember who, but someone said if the delay unit was removed and cover taken off, then place a screwed up piece of foam, soaked in oil under the cover. This acts as a type of slow leaking diaphram. After doing this the problem was solved. Funny thing is my current P6 has same problem, so I'll have another go.

Trust the above assists

Regards

Mike
 
Maurice,
Regarding the sump drainage problem - If you have another drain plug (A concept that I'm not familiar with as I have only ever owned V8 motors) then use it.
Hopefully a 4 cylinder owner will eventually answer this part of your query.
Regards, John.
 
Mike

Thankyou for your info on the remedy, to cure my wipers (I now have intermittent wipe!!) It has worked a treat.


John

I have actually just booked my Rover into a garage that deal with classic cars for an MOT, I asked if they would do my oil change, as i can't remove the sump plug. They said "yeah, no problem! we don't need to undo the sump plug anyway, as the oil is removed by suction!"
Are you aware of this method of changing the oil this way? and is okay to do so?

Oh by the way, I've got Millers Classic 20/50 oil to put in the car. I'll let you know what it is like :)
 
Sucking out the oil will work fine except it tastes a little bad!! The only problem I can see is that when you use the sump plug you do tend to get more of the cr@p out - you could ask them if they could get a monkey or pipe wrench onto what's left of the nut to see if it will shift.

.....The Millers oil is a good one if a little dear, used it before I discovered Valveline Racing.
 
Maurice,
Thanks for the suggestion of Millers Classic 20 - 50.
I'm keen to know if it (or any oil) can maintain oil pressure during its life, say 3000 miles.
During my early motoring life I was able to reject many popular brands as they could not maintain pressure but surprisingly some of the cheaper brands could!
Up until 3 - 5 years ago I used BP 20-50 "for the older car" in our everyday use 3500 and our weekend Three Thousand Five, and this was a fine oil, sadly no longer available.
Regards, John.
 
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