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G-AMG
G-Class DIY Host
Date registered: May 2006
Location: South Texas
Vehicle(s): '04 G55, '80 280GE, '99 S420, '98 E320, 2011 E350
| RE: Photo DIY- M110 Compression Check... UUUFF!! Now I Need Advice!!
hipine - 2/16/2010 9:33 AM
If you've got a bore scope you can inspect for excessive carbon through the spark plug holes. Maybe others will have some ideas.
-Dave G.
QUOTE]
Hmmm, maybe I'll do that....
Perhaps I'll drive over to my buddy's GI Endoscopy Lab and borrow one of his Colonoscopy Scopes... Of course I will Autoclave the scope it *PRIOR* to inserting into my "VERY VERY DIRTY ENGINE"...
Edited by G-AMG 2/16/2010 1:16 PM
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mike
Regular
Date registered: May 2006
Location: toronto, canada
Vehicle(s): 1985 280 ge, 1978 bj40 landcruiser
Posts: 79
| RE: YEAAAAAAAAHHHHHHHHHHH!! PROBLEM SOLVED!!
G-AMG - 2/15/2010 9:38 PM
Well folks... There is nothing like the "experience" from the G-Gurus.....
Thanks a zillion Chris505!!!!
I took your advice and "drove the crap" out of the truck (dohhh! am I allowed to say 'crap'?)... Cruising along at "near redline" during an unusually "Spirited" drive.. I came back and repeated the Compression Check..
READ' EM AND WEEP!!
Attached are the results...
So, the Chris505 theory proved correct...
Just as quickly as the "Rough Idle" appeared??? Now GONE!!!
I am sooooo stoked!! Thanks to all!!
I got similar readings on my 85 280ge-- They vary from 11 to 12 bar .. What does the manual say about the allow difference between cylinders? |
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G-AMG
G-Class DIY Host
Date registered: May 2006
Location: South Texas
Vehicle(s): '04 G55, '80 280GE, '99 S420, '98 E320, 2011 E350
| RE: Photo DIY- M110 Compression Check... UUUFF!! Now I Need Advice!!
Mike,
Here you go.. (See Attachment)
I have found a "Free" OnLine source of M110 Engine Info at this site:
http://handbook.w116.org/matrix6.htm
Attachments
----------------
 01-010.pdf (299KB - 7 downloads)
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petermerle
Expert
Date registered: Apr 2006
Location: Cape Town ( deep south )
Vehicle(s): W460 *1, W123 *2, W124
Posts: 1315
| RE: Photo DIY- M110 Compression Check... UUUFF!! Now I Need Advice!!
Does your solid state fuel pump relay include the 10 sec cutout if engine is not turning? Peter
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G-AMG
G-Class DIY Host
Date registered: May 2006
Location: South Texas
Vehicle(s): '04 G55, '80 280GE, '99 S420, '98 E320, 2011 E350
| RE: Photo DIY- M110 Compression Check... UUUFF!! Now I Need Advice!!
petermerle - 1/30/2014 2:01 AM
Does your solid state fuel pump relay include the 10 sec cutout if engine is not turning? Peter
Uuuffff, to be 100%? I don't have the slightest idea.. I'll have to check... |
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petermerle
Expert
Date registered: Apr 2006
Location: Cape Town ( deep south )
Vehicle(s): W460 *1, W123 *2, W124
Posts: 1315
| Re: Photo DIY- M110 Compression Check... UUUFF!! Now I Need Advice!!
The original mechanical relay switches fuel pump off in case of an accident when ignition is on and motor not turning to prevent fuel fueling a potential accident scene
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G-AMG
G-Class DIY Host
Date registered: May 2006
Location: South Texas
Vehicle(s): '04 G55, '80 280GE, '99 S420, '98 E320, 2011 E350
| Re: Photo DIY- M110 Compression Check... UUUFF!! Now I Need Advice!!
YIKES!!
Peter, thank you very much for pointing out this "Minor Detail"... I just ran out to the parking lot and checked:
NO!! With the Ignition on 2, and motor OFF, the pump just keeps going... I guess I never noticed that before, since I typically get in, hear the pump running, then start the engine.
Soooo, I guess, now, I either need to:
A- Change out to the Stock Configuration, or
B- Never get in an accident!! ;-) ha ha..
Thank you for alerting me to this potential "safety" issue. |
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