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#1
Mechanicals / Re: Belt sizes 280 se m110
Last post by Magyar - Today at 12:49 AM
I have a 1977 280se if that helps
#2
Mechanicals / M110 engine belt diagram
Last post by Magyar - Today at 12:39 AM
Hi, does a anybody have a m110 belt configuration and a photo and the sizes of the belts?

Thanks
#3
Test Drive / Re: My 6.9's
Last post by raueda1 - Yesterday at 06:36 PM
Disappointing but interesting. 🥺

Obviously the pump works and the front valve is working half right. So...

Did the car rise ok at some point in the past?  And did you rebuild the struts or other suspension elements thereafter? I'm guessing "yes".  So, did you see any evidence that fluid was blowing through the strut via the fluid return line?   That is, fluid getting past the internal seals so strut is effectively dead? If it were me I'd be hoping for that, cause then you'd know what to do (replace or re-rebuild strut).  Maybe pull the return line and make sure that little or nothing is coming out, bypassing the strut internals.  At least this is pretty easy to check. Cheers and good luck!
#4
Mechanicals / Re: Replacing Indicator Relays
Last post by rumb - Yesterday at 07:58 AM
Not so much replace as it would be fixing. Replacing wires isnt fun.
#5
Mechanicals / Over heating m110 engine
Last post by Magyar - Yesterday at 06:10 AM
Hi, all of the M110 powered 280se cars ive owned overheated, why do these engines always over heat?

How do I prevent it from over heating?

Is the temp below too high?
#6
Mechanicals / Re: Over heating m110 engine
Last post by mrkozzy - Yesterday at 05:34 AM
Ditto to the comments by rumb'

I've only overheated 2 times in my cars 45 year ownership.
Both times was down to some part of the system being worn or dated.
And just recently I discovered the system losing water. It was simply simply a faulty radiator cap.
I've taken the radiator out 3 times now, roughly every 10 years and sent it off to be professionally cleaned in an acid bath. Perhaps thats kept it in good stead.
#7
Mechanicals / Re: Replacing Indicator Relays
Last post by Alex - 27 March 2024, 08:47 PM
Quote from: rumb on 27 March 2024, 08:28 AMCheck the resistance and voltage  of wires in each socket. I would expect them to be similar.

Also be aware bad grounds lead to problems. The main ground for the rear harness is behind the RR passenger seat.

I will take a look at the grounding cable this afternoon. If the resistance of the wires is different, would it be best to just replace them?
#8
Test Drive / Re: My 6.9's
Last post by rumb - 27 March 2024, 01:09 PM
IT's ALIVE!  Well.... sort of.  3 out of 4 corners are now risen. Right front not so much.  I suspect crud in lines or perhaps valve. Need to figure out diagnosis plan.  I will probably take small line off where it enters accumulator and see if fluid comes out and work back from there.
#9
Mechanicals / Re: Over heating m110 engine
Last post by rumb - 27 March 2024, 08:35 AM
Generally these cars need entire system to be in order. Radiator, fan clutch, thermostat and water pump. And ac fan.
#10
Mechanicals / Re: Replacing Indicator Relays
Last post by rumb - 27 March 2024, 08:28 AM
Check the resistance and voltage  of wires in each socket. I would expect them to be similar.

Also be aware bad grounds lead to problems. The main ground for the rear harness is behind the RR passenger seat.