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Oil pressure at dipstick

Alex Kowalenko

Alex Kowalenko

Tuned and Synch'ed
GT Contributor
Joined
Nov 5, 2020
Messages
26
Location
Oklahoma
Is it normal to have a bit of pressure when checking the oil after the engine is warmed up on a ‘20 Eldorado?
 
I went to check it immediately after riding and had to unscrew the dipstick really slow to bleed of the pressure slowly so some oil didn’t come out
 
You are not supposed to open it with engine running. That would be crankcase pressure, should not be much after engine is stopped. It is somewhat open to air, through the breather system.
 
I checked it while the engine was off and there’s enough pressure that’s it’s almost hard to unscrew
 
Alex Kowalenko said:
I checked it while the engine was off and there’s enough pressure that’s it’s almost hard to unscrew
Click to expand...
Absolutely no good. Something is not venting correctly. Dealer issue if they'll be bothered.
 
Do you check your oil immediately after getting back from riding or do you let it sit for a few minutes?
 
Alex Kowalenko said:
Do you check your oil immediately after getting back from riding or do you let it sit for a few minutes?
Click to expand...

After it sits a bit. Dipstick doesn't give me a feeling that it's very durable, super tight after initial shut-down, afraid I'll snap it off. I can't recall ever removing it immediately after riding. Several attempts, I just feel safer letting it sit for, say, a half an hour first.
 
Oil level is best checked after overnight cold. This allows all oil to drain to the pan, and alleviates any potential issues with snapping off the dipstick.
 
Thanks for all the help guys. I think part of the problem was that I was trying to check it immediately after shutting the engine off.
 
I would still give the breather system a once over. That level of positive crankcase pressure, even on a hot engine, seems worrisome to me. I believe there is a one-way valve on the breather that should let pressure out, but not allow the opposite flow. If you're getting that much pressure in the crankcase, I would strongly suspect that valve is either failed, or installed backwards.

Edit to add: I forgot which bike we were talking about. I'm less sure about the breather valve on the 1400, however... I still think that amount of pressure seems like a problem.

__Jason
 
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For what it's worth , the manual that came with my 2018 Eldorado specifically says to check the
engine oil level when the engine is warm . It's also checked by threading the dipstick all the way
in to get the correct level . The bike must be level also . Peter
 
Moto-Uno said:
For what it's worth , the manual that came with my 2018 Eldorado specifically says to check the
engine oil level when the engine is warm . It's also checked by threading the dipstick all the way
in to get the correct level . The bike must be level also . Peter
Click to expand...

I just double-checked my owner's manual (2016 Eldorado), says to check warm with dipstick not screwed in. Is the 2018 different?
 
FrankZ said:
I just double-checked my owner's manual (2016 Eldorado), says to check warm with dipstick not screwed in. Is the 2018 different?
Click to expand...
I just investigated this and read it different in 2 manuals, THEN I looked at parts. Same part # from start to finish on the dipstick.

Now which is correct? Both are correct on what the owners manual says.
 
V700Steve said:
I just investigated this and read it different in 2 manuals, THEN I looked at parts. Same part # from start to finish on the dipstick.

Now which is correct? Both are correct on what the owners manual says.
Click to expand...

I have the Audace so haven't read the Eldorado owner's manual, but I seem to recall a discussion of this topic a few years back on this very forum. The suggestion made by someone was that because owners were routinely overfilling with oil when measured using a non-screwed in dipstick, Guzzi updated the manual to state that it should be mesured after screwing in as this would lead to a higher recorded reading and less oil being added. Whether this is true is anybody's guess, but it has ring of logic to it, but if that were the case, why not update the other 1400 manuals at the same time. Of course it could all be a typo due to Luigi's left hand not knowing what Mario's right hand is doing !!!

As the old chinese proverb goes "Man with watch knows the time. Man with two watches is never quite sure".
 
When changing engine oil and filter it seems 3 liters puts it near the full mark screwed in .
Nothing in air box and level never varies and runs fine in 46 degree celcius weather , I on the other hand
do not work so well in that heat :) . Peter
 
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