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1st March 2010, 19:47 | #11 | |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
Location: Former Middlesex
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Quote:
Simon.
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"Whatever is rightly done, however humble, is noble." Sir Henry Royce. |
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1st March 2010, 20:17 | #12 |
This is my second home
ZT 260 SE Twilight and 10 other 75 ZT's :O Join Date: Jan 2007
Location: Conwy NORTH WALES
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The thin wires are identical between 3 & 2 speed control boxes so they remain compatible with ECU outputs.
Follow these 2 Pics from Keith's original thread. The thick brown PLUS 12V goes straight to Motor Red. The Grey from the middle relay feeds the resistor (giving LOW speed) The Red (switched NEG!) wire from large relay goes to other side of resistor, where there is also a joint to the Motor NEG. The Large relay simply "shorts" out the resistor giving FULL speed Just the output (thick wires) differ in the later control boxes. Also note the end small relay is connected electronically but the output is unused.
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[SIGPIC][/SIGPIC] Newbies do now!! 1. Plenum drains..all 3 or 4 year dependent 2. Cooling fan..All speeds functioning 3. Bonnet cable divider block |
3rd March 2010, 07:37 | #13 |
Regular poster
Rover 75 Join Date: Jul 2007
Location: Moscow
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Thanks to all of you guys! You really helped me with this stuff!
So, I checked for earthing coils and guess what I've found? One of relays was dead (well, not dead, just corrosion on contacts), so I cleared contacts with vodka and now everything working fine with my old 3-speed motor. Also, I made a new 2-speed motor using Russian analog of relays, so it runs fine too. I will keep it for future! Thanks again, if you ever be in Moscow feel free to contact me! |
3rd March 2010, 08:11 | #14 | |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
Location: Former Middlesex
Posts: 20,265
Thanks: 1,587
Thanked 3,749 Times in 3,181 Posts
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Quote:
Simon. |
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3rd March 2010, 08:46 | #15 |
This is my second home
ZT 260 SE Twilight and 10 other 75 ZT's :O Join Date: Jan 2007
Location: Conwy NORTH WALES
Posts: 11,094
Thanks: 512
Thanked 1,116 Times in 763 Posts
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Good result Andrew.
Like the Vodka bit, must change the bottle of Cellulose thinners in the workshop for some Russian magic Juice
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[SIGPIC][/SIGPIC] Newbies do now!! 1. Plenum drains..all 3 or 4 year dependent 2. Cooling fan..All speeds functioning 3. Bonnet cable divider block |
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