1100G low compression, burns oil.

[Redman]

I keep telling you Dave, you need to talk Mrs. Redman into moving your anniversary date.

.

Yah, It did conflict with Brown County a few of the years BrownCounty was in May.
And then there was a couple years where grandkids "due date" was about then also.

[Burque73]

Dave, it sounds like things are working out. I'm glad for you and hope you're able to get the GK back on the road, running better than ever really soon.

[kochic]

If you search for a ''new'' engine, only the GK is rubber mounted, all the other G model are solid mounted.The crankcase is not the same. A 1100G complete top end will fit a GK.
Marc

[greg78gs750]

Dang, Dave, you're in it now, eh? Lemme know if you need a hand with anything, I'm good at standing around drinking beer and offering unsolicited and ignorant advice.....

[Redman]

Dave, it sounds like things are working out. I'm glad for you and hope you're able to get the GK back on the road, running better than ever really soon.

Thanks. And good to chatt with you yesterday. Am trying to get the project going again. Stalled out there for a while.

Dang, Dave, you're in it now, eh? Lemme know if you need a hand with anything, I'm good at standing around drinking beer and offering unsolicited and ignorant advice.....

Thanks. I got an extra 5 gallon bucket for you to sit on. And then you could lend a hand when needed. .... cant predict when.

[Redman]

If you search for a ''new'' engine, only the GK is rubber mounted, all the other G model are solid mounted.The crankcase is not the same. A 1100G complete top end will fit a GK.
Marc

Did not know that, Marc,
FOr the secondary drive project (a couple years ago, you might recall), I had entire engine unmounted and moved up and over a bit. I dont recall any rubber mounting. Maybe those cylindrical things (back - top of xmission) had rubber in them but I didnt notice.
At the moment, swapping entire engine is not an option I am concidering, but I should look into that crankcase-mounting situation.

[Redman]

Leading option at present is a salvage engine (from a fine GSR member) and me swapping the head and cylinder block (and? pistons), with rebuilding the head with new seals and probably new rings for pistons.

[kochic]

If you take you time its easy to do.Be careful with the pistons, all are NLA from suzuki and rings only std and .50 OZ. are available.I have 3 set of used gs1100gk pistons, let me know if you need something.GK engine are almost growing anywhere over here.
Marc

[Baatfam]

Any updates, Dave?

[Redman]

Any updates, Dave?

Thanks for asking.
Basically "No". Mostly stalled out, not determining how to proceed.
but might have some determination/progress tommorow.


I have been trying to measure the bore and pistons myself with expanding t guage thing and dial indicator (both cheap) and not getting reliable results that I can make any decision on. FOr one thing, the reading are like 71.95mm, when the spec is 72.00 (service limit 72.08) and some of my reading of pistons are larger than bore readings.
I ordered a more expensive (ahem, $40 not $18) dial indicator, but I suspect my problem is related to the expanding t thing and my procedure in general. (as others have told me, really need inside micrometer).

Just yesterday, I Found a one-guy-independent "motor sport" machine shop, mostly outboard motors and snowmobies but also motorcycles. Big thing he displays is "cylinder boring". I have something of an appointment with him in the morning, I asked if he could do the bore & piston measuring for me and give me a report. He asked again what engine and what year and how many miles (84k). He said, "yah, I can measure for you if you want (maybe he said "mic it for you") while you wait, but I can probably tell just by looking and feeling and tell you if it needs to be bored, or if pistons worn.

What I dont know is if overbored could be just enough to then use oversized rings, ..... . .. or if boring means need oversize pistons (which is not reasonable option).

Hopefully how it proceeds is I pay him maybe half hour labor to measure, and then I can decide how to proceed.

So maybe I am gonna find out pretty much what have already been told here : at 84K, dont bother measuring, just get lower mileage cylinder and pistons. I pretty much suspect that is what it is gonna be.

[Buffalo Bill]

Well Dave, if you really like the GK, you're gonna love it again after the work, Ah GARRONE TEE.
My G has regained it's youthful power after the valve job I did this winter. Whole lotta fun to ride again

[Nessism]

Boring means over sized pistons and rings. You can not use oversized rings in a standard bore, regardless whether or not it's worn or not.

[Redman]

Well Dave, if you really like the GK, . . . .

Yes, I do. I envision me having that for most remaining years of my riding carrier.
I am really comfortable on it, and I just like that it is such good cosmetic condition. And I like that I am so familiar with it.
(It is the RT that could go away, after GK back.)

My GK has never seemed like an 1100 to me (I have rode other 1100 that about rolled me off the back end).
Never seemed to even be up to the acceleration of the 850.
Was using oil when I first got it (2005 @29k miles). I had head rebuilt with new seals in 2007, and oil consumption was better for a few years.
Now at 84K, is burning much more.

Boring means over sized pistons and rings. You can not use oversized rings in a standard bore, regardless whether or not it's worn or not.

Thanks for explaining that.

[salty_monk]

Dave my 1100G definitely has a lot more oomph than an 850.... at 84k though I would guess you're losing it! I would hunt either a whole replacement unit or jug & pistons as you said.

[Redman]

WHat I didnt say is that about mid May 2020 I had a health problem. Pain for a few days, then uncomfortable and inactive for a couple weeks. ANd slow for a couple more weeks. And during this time THE elderly faterinlaw sick and in hospital and nursing home and hospital and then died, and we were statying with motherinlaw 2 - 3 days a week, 150 miles away, for months, and had another family tragidity during then. ANd then motherinlaw in hospital and nursing home and died. So that was all summer and most of the fall. And then was cold in the garage.

Had gotten a replacement head. But didnt get it taken care of till early this summer. And then was too hot in garage, at leeast was too hot for the level of enthusiasm I had for work on it.



NOTE: Now September 2021

Yep, Mr Dave ddanails, GK has been In my garage shop, since May 2020, sitting like this :


Your inquiry has prompted me to up my resolution to get at this project.

And now that not hot-humid in garage, I make more resolution to work on it most every day that am home (not with grandkids) at least a little, and one day a week for at least a couple hours. Hey, that might cut into my coffee shop visits. Hey, might cut into my disc golfing. Hey, might cut into morning photo walks on the pier.

Need to make significant progress before get into leaf raking season, cuz after that will be cold.

And now that I have told all you, I had better keep at it.

TO review:

Got cylinders measured at a motorsport machinist shop, deemed to be in spec.
Had them lightly hone the cylinders.

I have a complete gasket set (OEM).

Got a set of replacement pistons (Thanks again Mr Kochic.)

Got new piston rings (CruisinImage as recommend here).

Got a replacement head. ANd then had valves lapped in, and rebuilt with new seals (Thanks Mr Steve).

.