Cylinder bores dropped out while heat curing engine paint.

[Agemax]

i never fit the o rings on the bottom of the sleeves, in fact i was told by a few performance engine builders to purposely leave them out. Never caused a problem so far.

[Fjbj40]

Funny you mention that Agemax. I did the same thing on my 1085 rebuild 5 years ago. Virtually no oil leakage.

Only time I noticed any oil was when I got stuck in stop and go and traffic at 35 cel. Move 20 feet, stop for 30 seconds to a few minutes. All I can say was that was a very unhappy engine. I would have pulled over, but I was on a bridge that crosses Halifax harbour. Once I got over the crest, I shut her off and did the stop and go coasting.

I can only imagine how much unhappier the engine would have been if I did not have an oil cooler.

Some people on this forum say they are not required, I fit them to all air cooled engines for reasons like that.

[Agemax]

Funny you mention that Agemax. I did the same thing on my 1085 rebuild 5 years ago. Virtually no oil leakage.

Only time I noticed any oil was when I got stuck in stop and go and traffic at 35 cel. Move 20 feet, stop for 30 seconds to a few minutes. All I can say was that was a very unhappy engine. I would have pulled over, but I was on a bridge that crosses Halifax harbour. Once I got over the crest, I shut her off and did the stop and go coasting.

I can only imagine how much unhappier the engine would have been if I did not have an oil cooler.

Some people on this forum say they are not required, I fit them to all air cooled engines for reasons like that.

well,here in the UK we got absolutely no chance of riding in 35*c heat lol.I think the hottest i have ridden is high 20's,and that was far to hot for me, haha

[chuck hahn]

Block and cylinders are both used by many..its an apples and oranges issue really. Just as some call the inserts liners and some use the automotive term sleeves. But i guess technically sleeves is the correct term for any engine.

What are sleeves in an engine?


Sleeves are made out of iron alloys and are very reliable. A sleeve is installed by a machinist at a machine shop. The engine block is mounted on a precision boring machine, where the cylinder is then bored to a size much larger than normal and a new cast-iron sleeve can be inserted with an interference fit.

[Fjbj40]

No, a block contains bores, some have sleeves that are changeable some are not changeable. The loose term cylinder refers to the bore plus it's stroke, it forms a cylinder. They are an integral part of an engine, the one used in your copy/paste. A cylinder, as in the air cooled engines we are talking about are technically called exactly that, cylinders, or cylinder assemblies where the head is part of the cylinder where there is a separate block/case engine with cylinders bolted to them.

And no, sleeve is not the correct term to use for "any engine", if the bores are a formed part of the block then they are not a sleeve. A sleeve is removable from the block or in our case the cylinder.

I have worked on all these types of engines I am talking about. These are the technical terms used in the appropriate manufacturers manuals.

There are many different designs of engines, your quoting of an obscure non-validated copy and paste is a demonstration of your lack of understanding of these technical terms.

I am finished with this conversation.

Have a nice night.

[chuck hahn]

OPPS!!! I should have said GS engine..or motorcycle engine. Sorry for not being crystal clear...seeing its about a motorcycle and all.

[Brendan W]

I did mention this was a good time to fully remove them and clean the block wells.

So you did and I missed that.
Breaking my own rules again.
There are some folks who don't waste words in threads.

[chuck hahn]

I should say cylinders walls actually so others dont get mad for my not using the Kings English.

[Nessism]

On at least the 1000 cylinders (most likely others as well) there is a colored paint dot on the bottom of the cylinder assembly for what I presume is a selective fitting methodology between the liner and the aluminum casting. I've seen maroon, yellow, and blue dots before. The liners are a press fit when cold but as chuck states, this greatly diminished when hot. Suzuki must control the press fit closely thus the selective fitting. As to how much of the press fit goes away when hot, I suspect most of it.

blue.jpg

[Nessism]

Yellow dot...


yellow dot.jpg

[jsandidge]

I didn't realize it until now, but I just painted over some blue dots on mine.

[Kayak23]

Good shout on cleaning out the seats. I did give them a wipe when it happened bit I was in a bit of a panic to be honest.

I'll heat them up and do it again. Presumably they have to sit exactly where they sat originally rotation-wise?
There's a little flat on the side of each one and they were set as 1&2 facing each other and 3&4 facing.

[Kiwi Canuck]

To the original poster, you better check the paint can instructions, I believe the temp is 200 F (not 200C) to harden the paint, it is for VHT Engine enamels anyway.

That would be 93C and probably not hot enough to drop the sleeves.