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Dec 28th, 2019
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Re: Petrol smell and drip from engine
[Re: Bunny]
#726076
28/11/21 05:48 PM
28/11/21 05:48 PM
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Joined: May 2012
Posts: 340
Kent
Bobajobbob
OP
Learner Plates Off!
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OP
Learner Plates Off!
Joined: May 2012
Posts: 340
Kent
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When you say "starting the engine after wet sumping" what do you mean? When the M3W has been standing for an extended time (think weeks) without the engine being run then there is a tendency on many engines for oil to drain from the oil tank, past the oil pump into the crankcase. On my car, around 2 Litres ends up in the wrong place. When the engine is subsequently started, the oil is pumped back up to the oil tank where it belongs. A small amount may also be 'burped' out of the breather pipe which connects the crankcase to the air intake. This can dribble down through the air filter and end up on the floor if it's not all absorbed by the air filter element. This is a feature of many dry-sump motorcycle engines so we cannot point the finger at MMC this time! Many thanks. The car hadn't been driven for a couple of weeks so that is a possibility. The fluid did appear to be dripping down from the air filter area although the smell does appear to be more petrol than oil. Of course this being a Morgan there may well be petrol leaking somewhere else and I am being distracted by a more obvious but benign oil leak.
92 Connaught Green Plus 4
Triumph Bonneville 865
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Re: Petrol smell and drip from engine
[Re: Bobajobbob]
#726079
28/11/21 06:06 PM
28/11/21 06:06 PM
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Joined: Feb 2019
Posts: 3,713
Port Orchard, WA.
LightSpeed
Talk Morgan Addict
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Talk Morgan Addict
Joined: Feb 2019
Posts: 3,713
Port Orchard, WA.
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You could easily have both issues happening. Wet sumping pumping oil into the air cleaner and driping out as well as fuel leaking from the injector tower fuel hoses, or the tower spigots themselves.
Pull the fan to check for fuel leaks as has been said before.
The oil into the air cleaner just gunks up the air cleaner and dumps oil into the intakes causing crud to build up on the pistons, the rear piston in particular.
Last edited by LightSpeed; 28/11/21 06:08 PM.
The light at the end of the tunnel is actually a train. 2019 M3W
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Re: Petrol smell and drip from engine
[Re: Bobajobbob]
#726145
29/11/21 02:55 PM
29/11/21 02:55 PM
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Joined: Nov 2013
Posts: 1,930
Aberdeenshire
TimG
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Nov 2013
Posts: 1,930
Aberdeenshire
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Leaking fuel is not good round any engine but if fuel gets on your screens they will go opaque & need changing. I had a leak from the crimped hose connections.
Last edited by TimG; 29/11/21 03:54 PM.
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Re: Petrol smell and drip from engine
[Re: Bobajobbob]
#726207
29/11/21 09:04 PM
29/11/21 09:04 PM
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Joined: May 2012
Posts: 340
Kent
Bobajobbob
OP
Learner Plates Off!
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Kent
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Cheers all for all the info and suggestions. While I am at it should I also be checking the fuel tanks? I certainly haven't noticed fuel on the screens so I suppose if there is a petrol leak, above and beyond any oil issues, it could also be happening at the back of the car too?
92 Connaught Green Plus 4
Triumph Bonneville 865
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Re: Petrol smell and drip from engine
[Re: Bobajobbob]
#726351
02/12/21 01:02 AM
02/12/21 01:02 AM
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Joined: Feb 2019
Posts: 3,713
Port Orchard, WA.
LightSpeed
Talk Morgan Addict
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Talk Morgan Addict
Joined: Feb 2019
Posts: 3,713
Port Orchard, WA.
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the tank fill tube weld to the tank can leak too.
The light at the end of the tunnel is actually a train. 2019 M3W
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