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Joined: Jul 2007
Posts: 3,827 Likes: 4
le Asbo du Bling Talk Morgan Addict
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le Asbo du Bling Talk Morgan Addict
Joined: Jul 2007
Posts: 3,827 Likes: 4 |
We've clocked up 2600 mile now and it seems to be getting better.
With regards to the service schedule if you're not planning on changing the oil I'd suggest a careful check of the car to make sure everything is tight. I was told sometime ago that the engines were bench run before despatch to MMC
Slowly going green
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Joined: Oct 2008
Posts: 3,422 Likes: 5
Goodwood Drifter Talk Morgan Addict
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Goodwood Drifter Talk Morgan Addict
Joined: Oct 2008
Posts: 3,422 Likes: 5 |
I would still put the engine off when stuck in traffic
read the review by PJH: fast enough but I await the performance upgrades, exhaust say the rumors...
Steven sold: M3W, Aeromax,V6, 4/4 4seater now: +fourLM62
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Joined: Oct 2011
Posts: 3,513 Likes: 8
Talk Morgan Addict
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Talk Morgan Addict
Joined: Oct 2011
Posts: 3,513 Likes: 8 |
Re: the exhaust, it seems to me that the silencing is done by way of baffles inserted into the pipe, rather than straight through 'silencers' which use perforated pipe wrapped in a sound muffling 'wool', so if this is the case, surely the back pressure is higher than intended and removing these obstructions would induce more bhp, [allied with a slight change to the inlet side of things], although this might change the wonderful sound produced of course?
Paul [At last, I have a car I can polish]
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Joined: Oct 2008
Posts: 3,422 Likes: 5
Goodwood Drifter Talk Morgan Addict
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Goodwood Drifter Talk Morgan Addict
Joined: Oct 2008
Posts: 3,422 Likes: 5 |
think I'll first check out how "compliant" my new neighbours will be when I move in next month on my 1serieM I have the Akrapovic exhaust so unless I commute by bike, I'll be noisy leaving my street and I leave for work at 6hrs20 AM
Steven sold: M3W, Aeromax,V6, 4/4 4seater now: +fourLM62
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Joined: Oct 2009
Posts: 97 Likes: 2
Just Getting Started
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Just Getting Started
Joined: Oct 2009
Posts: 97 Likes: 2 |
The reason why these engines are sensitive to break-in procedures is because they feature a big volume per cylinder -> it would be very expensive to construct matching cylinders and pistons with perfect precision, this is why the tolerance is a bit higher causing the piston rings to need to adjust more. A new problem then occurs. If a piston needs to set more to the cylinder, the oil will be polluted more with more metal particles. These metal particles will cause jams in the oil channels in the engine block, this is why the first oil change is so important. The engine needs to be cleaned to be able to continue working. If more pollution occurs, the engine is more prone to contamination in the oil channels, this is why you should not do a lot of idling. If you idle, the oil flow slows down and the pressure lowers, aiding in clogging up the oil channels due to the lower flow of oil. Another big issue with smaller engines is that they have less oil in them. If you don't have a lot of oil, the oil is dirty faster because there is less to mix with  I did some research before driving 1560's car and idling always seemed to be a bigger issue than revs (BUT BE SURE TO ONLY LOAD THE ENGINE WHEN HOT). I personally tried to keep it above 2000 as much as possible and below 4000 (usually only 3500) at all times. Another problem with idling is ofcourse that the engine is running without cooling -> because the piston is made of less material than the cylinder itself, it expands faster than the cylinder itself causing the space between piston and cylinderwall to decrease in size. This is terminal for an engine because wear is very high at that point. Especially in cylinders that have exhaust ports instead of valves, because the piston ring is forced to hit the sides of the port because of the piston pushing the ring outwards. I know that what I have written all sounds very alarming, but you need not fear. Idling in front of a red light will not be a problem  this is just what could happen if you really abuse the engine by letting it idle for a longer period of time... and even then it normally shouldn't be a problem, just a bit unhealthy.
Last edited by PJH; 14/07/12 10:29 AM.
I'll drive.
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Joined: Apr 2011
Posts: 76
Just Getting Started
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Just Getting Started
Joined: Apr 2011
Posts: 76 |
Hi, From Charles Morgan's Gunball report: "In the jam, the 2-liter V twin goes into "skip fire" mode, missing every fourth fire to cool itself — a very clever piece of engineering in an air-cooled engine"
M3W 2012 (nr 32)
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Joined: Jul 2012
Posts: 20
New to Talk Morgan
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New to Talk Morgan
Joined: Jul 2012
Posts: 20 |
So, I've just ordered my M3W is this overheating lark going to be an issue?
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Joined: Jul 2007
Posts: 28,415 Likes: 177
Salty Sea Dog Member of the Inner Circle
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Salty Sea Dog Member of the Inner Circle
Joined: Jul 2007
Posts: 28,415 Likes: 177 |
In the UK? Certainly not this year!  A much earlier version of this can be noted on single cylinder agricultural engines, only they used to fire once in several revolutions... Mainly as speed governing, but also allowed cooler running.
Graham (G4FUJ)
Sold L44FOR 4/4 Giallo Fly '09 Gen2 MINI Cooper ragtop '90 LR 90 SW
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Joined: Jul 2007
Posts: 3,827 Likes: 4
le Asbo du Bling Talk Morgan Addict
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le Asbo du Bling Talk Morgan Addict
Joined: Jul 2007
Posts: 3,827 Likes: 4 |
This isnt a problem, mine did it several times at LMC , the only thing to remember is to blip the throttle to wake it up.
Slowly going green
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Joined: Feb 2012
Posts: 1,664
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Feb 2012
Posts: 1,664 |
So, I've just ordered my M3W is this overheating lark going to be an issue? No one that I know of has had any overheating issues, this discussion is more about generally good practices in regards to the longevity of your v-twin as pointed out in the S&S motor break-in procedures. Also, welcome to Talk Morgan!
Charlie, Former Editor Morgan Owners Group - Great Lakes
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