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General Category >> Rubber Side Down! >> engine leak ?
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Message started by grim on 03/28/07 at 20:23:39

Title: engine leak ?
Post by grim on 03/28/07 at 20:23:39

Anyone ever have a leak down the center of the engine? There is no gasket here, just the triple bond stuff. Just wondering if I should open it just to re-seal it. I have the engine off but I don't want to do it if you all have had no problems with it....Thanks

Title: Re: engine leak ?
Post by justin_o_guy on 03/28/07 at 22:29:43

I seriously don't like oil leaks. Not so much because it's not Purrty, but because we only have a couple O quarts. What if it gets worse? I have never seen one heal up, they only get worse. How hard will it be to go back & fix it? How hard will it be if you have to do it after it's all back together? I think the answers to the last 2 questions will help you decide.

Title: Re: engine leak ?
Post by grim on 03/29/07 at 20:14:08

For crankcase disassembly (getting to the seal down the center), did you guys have to use a Flywheel Holder? Thanks guys

Title: Re: engine leak ?
Post by Kropatchek on 03/30/07 at 02:03:26

grim wrote:

For crankcase disassembly (getting to the seal down the center), did you guys have to use a Flywheel Holder? Thanks guys

My (now) spare engine has several leaking spots from the center liquid gasket. I'm planning to split the case without touching the LH side of the engine. Have removed the RH side parts, clutch, primairy gearnut( LH thread), oilpumpgear etc. From the LH side I only removed the cover.
Now I need to make up a support to put the engine on its LH side and remove the RH crankcase half.
If you want to remove the parts on the LH side you need a puller to remove the rotor and as you said a holder for the flywheel.

Title: Re: engine leak ?
Post by Crusher0964 on 03/30/07 at 05:07:52

grim wrote:

While you are on this question... Doe's triple bond have to be used or can I use a good silicone?

Title: Re: engine leak ?
Post by Greg_650 on 04/01/07 at 06:54:45

grim wrote:

I'm trying to understand what the "center of the engine" is. Is that along the crankcase halves?

Title: Re: engine leak ?
Post by Kropatchek on 04/01/07 at 08:47:47

Greg_650 wrote:

I'm trying to understand what the "center of the engine" is. Is that along the crankcase halves?

Yes, where the crankcase splits and has NO gasket!!! :-[

Title: Re: engine leak ?
Post by Greg_650 on 04/01/07 at 10:58:06

[quote author=Kropatchek link=board=RubberSideDown;num=1175138619;start=0#6 date=04/01/07 at 08:47:47]

Yes, where the crankcase splits and has NO gasket!!! :-[/quote]
Funny. When I've had the engine out, I noticed a little oil leaking from the lower engine mount holes. I wondered if it came from the crankcase halves. Better yet, I noticed that no oil leaked when the engine is installed with bolts tightened in place.

Hmmm...

Title: Re: engine leak ?
Post by wicks on 04/02/07 at 14:31:19

I just took my 2001 LS650 in to fix this leak...
They replaced the head gasket, I drove about 5 miles and the same leak occured.
There is a thread regarding a plug seal/cap of some sort. Most likely the problem.

Title: Re: engine leak ?
Post by hutch on 04/02/07 at 16:54:58

wicks wrote:

The head gasket or plug cap leak will show up on the top of the motor, usualy on the cooling fins. The leak down tthe center of the motor on bottom is the crankcase halves. I have a 06 and it leaks a drop or two a day just setting in my living room, even if it hasn't been started for a month or two. Im' kind of use to oil leaks after all the British bikes and Harley's I've owned. It is aggravating with a bike that only has 2900 miles though. Hutch

Title: Re: engine leak ?
Post by Kropatchek on 04/03/07 at 03:57:55

Greg_650 wrote:

Funny. When I've had the engine out, I noticed a little oil leaking from the lower engine mount holes. I wondered if it came from the crankcase halves. Better yet, I noticed that no oil leaked when the engine is installed with bolts tightened in place.

Hmmm...

I had the attachment of the brake cable ( below the oilsightglass) covered in oil. After removing the engine I saw that the oil was comming out-off the fwd engine mounting hole. There had been a slight seepage at the back of the engine also. Will split the case and redo the sealing.

Title: Re: engine leak ?
Post by Greg_650 on 04/03/07 at 04:58:31

wicks wrote:

This is not the plug/cap or head gasket. I am well aware of that one. It is the dealerships that aren't, and so you got a new head gasket that you didn't need ;D

The drip I noted is at the crankcase split and from the engine mounting holes when the engine is out of the bike. When the engine was reinstalled, it stopped.

Title: Re: engine leak ?
Post by Greg_650 on 04/03/07 at 05:11:05

Kropatchek wrote:

That's kinda what I was talking about, but mine stopped after the engine mount bolts were tightened in the frame.

Normally that slight leak might not be noticed, when working on an engine on a bench.

Title: Re: engine leak ?
Post by Crusher0964 on 04/03/07 at 17:36:42

Crusher0964 wrote:

While you are on this question... Doe's triple bond have to be used or can I use a good silicone?

How about the triple bond? Where can I get it please? ???