Jump to content

Timing Chain Adjustment, Anyone?


Recommended Posts

10 hours ago, rogerguzzi said:

Hello

           What is roughly the chain pitch?? It looks a touch bigger than Spitty!!

Roger

Pitch is 114.3mm, or 1143mm across 10 links.

Max permissable wear is 1154.4mm across 10 links.

Link to comment
Share on other sites

3 minutes ago, Hamish said:

And it’s all so clean. 
I’ve had more chain lube “fling off” on my motorbikes. 

Funny you say that. We were not happy about how dirty it was, explains why our filters have been choking up recently.

Should be no black marks inside at all, it appears we have some stuffing boxes not sealing somewhere.

Just for interest, that engine is 4 years old now, with just over 18000 running hours on it.

Link to comment
Share on other sites

4 minutes ago, thebrookster said:

Funny you say that. We were not happy about how dirty it was, explains why our filters have been choking up recently.

Should be no black marks inside at all, it appears we have some stuffing boxes not sealing somewhere.

Just for interest, that engine is 4 years old now, with just over 18000 running hours on it.

Well that’s me out as an engineer then !!!!!

but you tend to get some teething problems when it’s not quite run in !

Link to comment
Share on other sites

49 minutes ago, thebrookster said:

Pitch is 114.3mm, or 1143mm across 10 links.

Max permissable wear is 1154.4mm across 10 links.

That's 1% stretch!  On a bike that means change chain AND gearset!

Link to comment
Share on other sites

10 hours ago, JohnD said:

That's 1% stretch!  On a bike that means change chain AND gearset!

Yep! Same thought occurred to me too :biggrin:

Do the new ones come with extra links for you to 'cut' to length like a bike? I suspect not. :laugh:

Serious chain that. Must be an interesting job getting it in and out of the chaincase. Must be even worse that trying to replace a tank track.

Link to comment
Share on other sites

On a similar theme, I sure am glad I don't have to pay for this oil change!!!! (Oh, and I hope that the Bahco shifter works for scale).

For anyone curious, I've just filled up 1300 litres of new oil into that sump!

At current prices, about $10k USD.

IMG20240425152951.thumb.jpg.045e3777b41cbb68e8acd7e1edc66a0a.jpg

IMG20240425153000.thumb.jpg.b3228482b4f52ec4c3e487fe5afceb48.jpg

IMG20240425153201.thumb.jpg.f1a77cd939d7e0b2abc478bb5a91ad30.jpg

IMG20240425153205.thumb.jpg.b80c21cd5717f4d4fd212c97d2b149fc.jpg

  • Thanks 1
Link to comment
Share on other sites

7 hours ago, thebrookster said:

I've just filled up 1300 litres of new oil into that sump!

Eeek!  What happens to the used oil? Add to fuel or offload at some point for recycling?

(that’s the size of my heating oil tank!)

Link to comment
Share on other sites

8 hours ago, Nick Jones said:

Eeek!  What happens to the used oil? Add to fuel or offload at some point for recycling?

(that’s the size of my heating oil tank!)

Depends upon the ship.

Initially it goes into our waste oil tanks. And that holds for all our ships. After that, for this current ship (and the other two US West Coast vessels) we transfer all ER Oily Waste into a cargo tank and send it to the refinery. We can do this because we are all the same company!

The rest of the rest of the fleet this option is not available. So they generally incinerate it all, except for the odd occasion they can get a slop barge, but this is an expensive option.

The scary thing with the cost of this oil, we use the "cheap" oil! The "Quality" stuff I dread to think of the cost.

Link to comment
Share on other sites

That's a lot of oil.

And a bit sh1te that it can't all be recycled through slops. I guess though on a crude carrier the simple thing is just to dump it into crude. That's what we did at the refinery.

A lad I worked with at BP Grangemouth had previously worked for a company that specialised in recycling mixed hydrocarbons. Mind you as every distillation/recycle cycle was a bit bespoke I can understand how the costs add up. And that's before you get the stuff there.

Good to know though Phil that you work for some of the good guys. I suspect there are many out there who just dump it over the side.

Link to comment
Share on other sites

3 hours ago, Escadrille Ecosse said:

I guess though on a crude carrier the simple thing is just to dump it into crude. That's what we did at the refinery.

You’d think that anything that will happily drink HFO wouldn’t mind a bit of lube oil mixed in…..?

Link to comment
Share on other sites

10 hours ago, Escadrille Ecosse said:

Good to know though Phil that you work for some of the good guys. I suspect there are many out there who just dump it over the side.

Generally, yes I work for one of the better companies out there. However as a rule these days the guys that pump it out get caught pretty quick, the amount of electronic monitoring and paperwork has stopped that now. That's not to say it doesn't happen, but it is nowhere near as common now as it was even a decade ago.

Link to comment
Share on other sites

7 hours ago, Nick Jones said:

You’d think that anything that will happily drink HFO wouldn’t mind a bit of lube oil mixed in…..?

On the old engines, yes. The new electronic engines now, they don't tolerate dirty fuel as much, and add to that the paper trail due to all the emissions requirements and it makes it a no go.

These days now we have to report all consumptions to IMO (via home office) for ballast and loaded passages, and this through various calculations gives us a rating. In order to be viable for charter this ratio has to be below a certain threshold, and below that your charter rate drops rapidly. So financially for a company you want to meet the standards. It's becoming a clever game.........

Link to comment
Share on other sites

10 hours ago, Escadrille Ecosse said:

I guess though on a crude carrier the simple thing is just to dump it into crude. That's what we did at the refinery.

This works when the refinery is the same company as the ship, however even now if we tried to do this with a 3rd party refinery, the answer is no. Any reason to force a price drop.........

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...