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What's in my sump?

#1

D

DRWDRW

Does anyone recognise what this little chunk of steel might be (or might have been)?

I found it in the sump of my Briggs 11hp 21000 when I dismantled it to replace a broken governor. It's too heavy to be from the oil slinger, but I'm scratching my head to work out where it originated.

Thanks in advance.

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#2

I

ILENGINE

That is the flyweight for the compression release mechanism on the camshaft. So you are will be needing a new camshaft. Just make sure you find all the parts to the compression release. You are also missing the pivot pin and the return spring.


#3

D

DRWDRW

ILENGINE said:
That is the flyweight for the compression release mechanism on the camshaft. So you are will be needing a new camshaft. Just make sure you find all the parts to the compression release. You are also missing the pivot pin and the return spring.
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Thank you very much for that info.

I think it's time for a whole replacement engine. :(


#4

D

DRWDRW

ILENGINE said:
That is the flyweight for the compression release mechanism on the camshaft. So you are will be needing a new camshaft. Just make sure you find all the parts to the compression release. You are also missing the pivot pin and the return spring.
Click to expand...
Will the engine run happily without the release mechanism?

For several years, I've sometimes had trouble starting it - almost like there was too much compression. In fact, I posted on here about it because it gave symptoms of a flat battery despite being connected to a fresh battery.


#5

Scrubcadet10

Scrubcadet10

It will run without it, but it will be hard to start, and hard on your starter/hand
if you're that deep in it, put a new cam in it.


#6

B

bertsmobile1

And you have small pieces of metal bouncing around inside the engine waiting to get caught between the cam gears the very time you need the mower the most .


#7

D

DRWDRW

bertsmobile1 said:
And you have small pieces of metal bouncing around inside the engine waiting to get caught between the cam gears the very time you need the mower the most .
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Forgive me if I sound dumb, but where would the extra pieces be coming from? My engine is in pieces on the bench... Will lack of the release mechanism cause other bits to fall apart?

I'm not averse to fitting a new cam - but I'm in the UK, and it means waiting a few weeks to get one on order, by which time my lawns will be forests...


#8

S

slomo

Hire a lawn crew till the engine is repaired proper. Or get a back up mower.


#9

D

DRWDRW

Thanks for all the advice.

The engine's back in the mower, running better than it has in many years. I'll order a cam but I'm in no hurry to fit it.


#10

S

slomo

Clean the block and cooling fins while you are at it. This is a yearly in your manual.

Also de-carbonize the cylinder, head and valves. Check your engine manual for more info.

Neglect these and you will have engine damage later on.


#11

B

bertsmobile1

DRWDRW said:
Forgive me if I sound dumb, but where would the extra pieces be coming from? My engine is in pieces on the bench... Will lack of the release mechanism cause other bits to fall apart?

I'm not averse to fitting a new cam - but I'm in the UK, and it means waiting a few weeks to get one on order, by which time my lawns will be forests...
Click to expand...
From the remainder of the ACR mechanism unless you are sure you removed every bit of it from the cam shaft.


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