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Author Topic: Unknown Relay R/H Engine compartment  (Read 3836 times)

CJHenderson

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Unknown Relay R/H Engine compartment
« on: April 28, 2016, 18:37:24 »
Have a relay on the right side of engine compartment just aft of the shock cover. Looked in Chilton manual cannot locate it.
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1970 280SL/8 W113 101624 miles.
1950 MG-TD
2021 Harley Davidson CVO Trike

stickandrudderman

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Re: Unknown Relay R/H Engine compartment
« Reply #1 on: April 28, 2016, 18:55:02 »
Voltage regulator
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CJHenderson

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Re: Unknown Relay R/H Engine compartment
« Reply #2 on: April 28, 2016, 19:03:00 »
Great thanks
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1970 280SL/8 W113 101624 miles.
1950 MG-TD
2021 Harley Davidson CVO Trike

TheEngineer

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  • '69 280SL,Signal Red,
Re: Unknown Relay R/H Engine compartment
« Reply #3 on: April 28, 2016, 23:47:48 »
I found when I checked the voltage with the alternator turning, it would read 12 volts. It should read about 13.8 volts. So I opened it up and turned the little screw until it read 13.8 volts. I wonder why my battery is now happier.
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'69 280SL,Signal Red, 09 cam, License BB-59U
'67 230SL, 113042-10-017463 (sld)
'50 Jaguar Roadster XK120, #670.318 (sld)
tired engineer, West-Seattle,WA

awolff280sl

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Re: Unknown Relay R/H Engine compartment
« Reply #4 on: May 01, 2016, 11:17:45 »
I was not aware that the output voltage is adjustable.
Where is this little screw located?
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Andy   Sarasota, FL
'69 280SL 4speed
'06 Mitsubishi Evo

Tyler S

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Re: Unknown Relay R/H Engine compartment
« Reply #5 on: May 01, 2016, 15:04:46 »
Andy, If you remove the top cover you will see the adjustment. Cleaning the contacts often helps as well. Only the Original regulators have this adjustment. The replacement ones are not adjustable.
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1968 (67) 250sl. 4 speed manual. DB180 Silver
1955 220 Cabriolet A. White Grey
2019 E450 Wagon. Majestic Blue
1936 Ford PU Flathead V8. Creme on tan interior.
1989 Volkswagen T3 Westfailia Campmobile. Dove Grey (blue)
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