Forums > Sailing General

YSE8 ( the beast) is back

Reply
Created by Serb1980 > 9 months ago, 12 Aug 2022
Serb1980
388 posts
12 Aug 2022 7:53AM
Thumbs Up

Finally

An old piston..

welsh
NSW, 87 posts
12 Aug 2022 11:38AM
Thumbs Up

Bravo champ. Sounded like a long arduous process glad it's finally over for you

Serb1980
388 posts
12 Aug 2022 10:09AM
Thumbs Up

Select to expand quote
welsh said..
Bravo champ. Sounded like a long arduous process glad it's finally over for you


Happy days my dear Fellows.

UncleBob
NSW, 1299 posts
12 Aug 2022 12:43PM
Thumbs Up

Select to expand quote
Serb1980 said..

welsh said..
Bravo champ. Sounded like a long arduous process glad it's finally over for you



Happy days my dear Fellows.


May the happy days continue long into the future.
May I also humbly suggest that you abstain from using anything in the crankcase other than GOOD quality oil designed for diesel engines, I use a shell product, rimula designed for heavy trucks, that maintains oil pressure really well.

Serb1980
388 posts
12 Aug 2022 12:17PM
Thumbs Up

Yes, and I will kindly accept your suggestions. No more lucas oil **** in it. Had a good chat with Philip Lulich ( Yanmar mechanic who reconditioned the engine) who told me the same. He recommended this oil.

Thank you for kind suggestions and care.


Keep in touch

UncleBob
NSW, 1299 posts
12 Aug 2022 3:21PM
Thumbs Up

Select to expand quote
Serb1980 said..
Yes, and I will kindly accept your suggestions. No more lucas oil **** in it. Had a good chat with Philip Lulich ( Yanmar mechanic who reconditioned the engine) who told me the same. He recommended this oil.

Thank you for kind suggestions and care.


Keep in touch


Good one.

Serb1980
388 posts
13 Aug 2022 9:09AM
Thumbs Up

I have a question, so looked at the recommended oil which is mono 30. I have choice, Valvoline around 10-12 bucks a litre or wolf western half price 6 bucks per litre. I have never used valvoline or gulf western oils, only used liqui Molly in my Saab. I know many people like Penrith oil but is more expensive than valvoline. Is there any fellow tiger here that has the beast YSE8 and which oil is he using?

If gulf western will do the job than why not get 20L for 120 bucks and share with the neighbour how also has Yanmar 3 cylinders engine.

Gulf western is made in Australia and I prefer to support the local community and businesses.

Thank you.

garymalmgren
1352 posts
13 Aug 2022 10:20AM
Thumbs Up

Hi Serb
There will be many opinions on oil.
ie. Don't save money on cheap oil, buy the best.
It is only an old industrial engine and will run perfectly well with any oil as long as it is changed regularly.

I use the cheapest oil, rotate the oil filter (the T handle in the front of the engine) every start up and change once a year.
That is an oil change every 60 hours or so. I pay $3:50 per litre. 1.9 litres =$7.
I pulled the front housing off to change a seal and checked and washed the inside of the oil filter with kerosene.
There was zero sludge after 7 years.

In the end it is up to you.

gary

UncleBob
NSW, 1299 posts
13 Aug 2022 12:37PM
Thumbs Up

Serb, the cheapest form of insuring that the engine will perform to its best is to buy the best oil, not the cheapest. The rebuilder offered his 2 bobs worth, the price difference is nothing in the scheme of things.

Serb1980
388 posts
13 Aug 2022 11:58AM
Thumbs Up

Understood,

but which one is the best? If you ask 100 people they all have different opinions. It is just too funny. Every body has different theories. I want to put the best oil in the beast, but is the best one the most expensive? This is soooo funny.

I will go with valvoline than.

UncleBob
NSW, 1299 posts
13 Aug 2022 2:17PM
Thumbs Up

Select to expand quote
Serb1980 said..
Understood,

but which one is the best? If you ask 100 people they all have different opinions. It is just too funny. Every body has different theories. I want to put the best oil in the beast, but is the best one the most expensive? This is soooo funny.

I will go with valvoline than.


Mate, I know what you are saying and agree with you, which is why I use recognised quality brands. If I remember correctly older Yanmah's use a 30 weight mono grade, so yeah, I would stick with that.

Serb1980
388 posts
13 Aug 2022 3:23PM
Thumbs Up

Cool, apparently 15w40 castrol magnetic oil can damage the bearings.

will stick with Valvoline mono 30!

Thanks

wongaga
VIC, 653 posts
13 Aug 2022 5:39PM
Thumbs Up

The Yanmar stuff is around $40 for 5 litres, get it from the dealer when you pick up your impellers and anodes.

Ramona
NSW, 7731 posts
13 Aug 2022 5:40PM
Thumbs Up

I would suggest using the cheapest oil you can find as long as is the same rating as what was recommended for this engine at the time. Everything you can buy now exceeds that rating. 30 grade oil will have less additives than a multigrade. Most people kill their engines with kindness. Modern oils, even oil based are far too good for this generation of engine and the rings never get bedded in correctly. If you had new rings installed I would have thought the builder would have filled with running in oil! The Gulf oil mentioned far exceeds the engine requirements but the only other source for oil to suit will be at tractor supply shops.

cisco
QLD, 12361 posts
13 Aug 2022 7:06PM
Thumbs Up

Mono 30 MINERAL oil, not synthetic.

Buy a quality brand and change it 6 monthly.

woko
NSW, 1756 posts
13 Aug 2022 8:18PM
Thumbs Up

I use the gulf western mono grade in the Detroit and the same brand but recommended multi in the Nissan industrial engine. The modern oil that complies with oil grades will be all good. Use an oil that is specified for the engine and change it at regular intervals. Yacht engines seldom reach the recommended hourly interval. Note the oil can sill look good but have lost its viscosity, owing to exposure to residual fuel contamination. I change the oil every 12month even if has done nil hours. But in a wee little motor it wouldn't cost much to do it more regularly Anyway Serb your mechanic has made a recommendation, so stick with it, he rebuilt the engine so he probably knows what he's talking about

Serb1980
388 posts
13 Aug 2022 6:28PM
Thumbs Up

Thanks tigers. The specifications for old Yanmar is CF oil, non detergent mineral oil. Change every 6 months and happy days. Why do synthetic oils not work well in marine diesels?
The problem with using high-spec synthetic oil in older diesel engine designs is that it can quickly cause bore polishing. Bore polishing leads to excessive oil consumption by the engine and reduced power output, and it's very difficult to rectify.

If you're in a foreign port and you urgently need engine oil then look for quality branded mineral oil. You need 15W40 grade, with a spec to API CF-4, which is the official replacement for API CD. Note that the can might say "API SL/CF" - don't worry; that's the one you want. The "SL" bit refers to the spec for petrol engines; the "CF" bit refers to the spec for diesel engines.

So in conclusion, just in case you've skimmed this page. A good semi-synthetic is certainly better than no oil at all and if I had no other choice then I'd put it in in my trusty old Yanmar. The next day, though, I'd be flushing it out and replacing it with mineral oil.

All clear now!

Magpieuser
QLD, 46 posts
15 Aug 2022 2:51PM
Thumbs Up

Professional who actually works on engines and makes them actually run. Probably for a long time - makes oil suggestion, no doubt based on a variety of actual experience....

Client immediately looks for cheaper option and asks around on internet forum..... (having just spent 1000's with professional)

I don't get it???


UncleBob
NSW, 1299 posts
15 Aug 2022 5:35PM
Thumbs Up

Select to expand quote
Magpieuser said..
Professional who actually works on engines and makes them actually run. Probably for a long time - makes oil suggestion, no doubt based on a variety of actual experience....

Client immediately looks for cheaper option and asks around on internet forum..... (having just spent 1000's with professional)

I don't get it???




To be fair, he has been bitten previously and possibly seeking confirmation from a broader audience.

Ramona
NSW, 7731 posts
15 Aug 2022 5:58PM
Thumbs Up

Select to expand quote
Magpieuser said..
Professional who actually works on engines and makes them actually run. Probably for a long time - makes oil suggestion, no doubt based on a variety of actual experience....

Client immediately looks for cheaper option and asks around on internet forum..... (having just spent 1000's with professional)

I don't get it???




A professional would have put in a running in oil! Then told the client to change to a 30 grade oil after 50 hours or so.

Bushdog
SA, 312 posts
15 Aug 2022 6:05PM
Thumbs Up

Oils aint Oils Sam.

woko
NSW, 1756 posts
15 Aug 2022 7:15PM
Thumbs Up

Select to expand quote
Ramona said..

Magpieuser said..
Professional who actually works on engines and makes them actually run. Probably for a long time - makes oil suggestion, no doubt based on a variety of actual experience....

Client immediately looks for cheaper option and asks around on internet forum..... (having just spent 1000's with professional)

I don't get it???





A professional would have put in a running in oil! Then told the client to change to a 30 grade oil after 50 hours or so.

I believe running in oil is a newish development owing to the advances in metallurgy and manufacturing leaving tolerances rather fine, hence a running in oil or perhaps a wearing in oil is needed. I don't think a yse8 a GM or the likes of a Gardner have any need for such treatment let's face it their tolerances are loose enough to require a thick mono grade oil. Perhaps a marine engineer that that worked on that category of machine will comment

Magpieuser
QLD, 46 posts
16 Aug 2022 11:04AM
Thumbs Up

Select to expand quote
Ramona said..

Magpieuser said..
Professional who actually works on engines and makes them actually run. Probably for a long time - makes oil suggestion, no doubt based on a variety of actual experience....

Client immediately looks for cheaper option and asks around on internet forum..... (having just spent 1000's with professional)

I don't get it???





A professional would have put in a running in oil! Then told the client to change to a 30 grade oil after 50 hours or so.


But isn't mono 30 a 'running in oil' anyway?

ie. basic oil, no friction modifiers etc.

Either way my guess is to satisfy the engine builders requirements for their warranty you actually use and do what they suggest.

hipopp
58 posts
26 Aug 2022 2:06AM
Thumbs Up

buying a yacht with an old yse8...bit noisy but goes ok..is Nulon additive a safe option?

Ramona
NSW, 7731 posts
26 Aug 2022 8:37AM
Thumbs Up

Select to expand quote
hipopp said..
buying a yacht with an old yse8...bit noisy but goes ok..is Nulon additive a safe option?


Don't waste your money. Stick with a 30 grade mono or use a 40 grade if you think it's going to make a difference.

UncleBob
NSW, 1299 posts
26 Aug 2022 8:46AM
Thumbs Up

Select to expand quote
Ramona said..

hipopp said..
buying a yacht with an old yse8...bit noisy but goes ok..is Nulon additive a safe option?



Don't waste your money. Stick with a 30 grade mono or use a 40 grade if you think it's going to make a difference.


^^^^
This, buy GOOD, branded oil, not some cheaper house blend.

woko
NSW, 1756 posts
26 Aug 2022 9:57AM
Thumbs Up

Yep what they said

Serb1980
388 posts
26 Aug 2022 8:44PM
Thumbs Up

The problem is you ask 10 mechanic and they are all saying different oil. One Mechsnic sad : Valvoline, another sad: Valvoline? I hate that oil.? It is like a water. You need to use a good oil like Gulf Western and add 20% of Lucas oil stabilisatior to protect the engine even more. And so on and so on.
I love to talk about oil to every and each mechanic and everybody has different opinion. That is very interesting for me. I buy oils and test them in my lab. I freeze them burn then etc. so far Gulf Western mono 30 and 20% of Lucas oil Stabilsator is the only mixture that takes twice longer to reach 200 degrees under the flames.. but interestingly gulf western is the cheapest oil but outperforms oils like Valvoline, Penrite Shell, etc..

Ramona
NSW, 7731 posts
27 Aug 2022 8:57AM
Thumbs Up

Use the cheapest oil suitable for your engine. No additives. The rings need to get bedded in. It will never wear out in our lifetimes. Corrosion will kill it eventually but we will be long gone!



Subscribe
Reply

Forums > Sailing General


"YSE8 ( the beast) is back" started by Serb1980