MSR G/K 1978-1982

Ken,

Please scroll back up to my post #12 in this thread. What you see, is what I call the "fat jets". My terminology, and not MSR's. Sorry for the confusion.

Doc

 

Hi, All,

@HunterStovie wrote:

"Would not a single fuel jet be marked GK to denote it's use for both fuels?"

Mike,

I had an idea, and looked at the later MSR stoves, i.e. Shaker Jet, X-GKII, and X-GK II Expedition models, and found your "GK jet.

Check that link that @SNOWGOOSE posted here:

https://classiccampstoves.com/threads/msr-xgk-ii-expedition-stove-2004.20449/

If you scroll down a bit, you will see some excellent photos that Rob posted, illustrating jets such as you mentioned. These jets had the internal "Shaker" cleaning needle. I hope this helps. Take care, and God Bless!

Every Good Wish,
Doc

 

Ok, I caught my second wind and caught up with this run.
The "Fat" jets that you refer to are the shapes of the "G" and the "K" jets. Not a "GK" jet. DOH!!

I somehow got it in my head that the jet hole was "FAT" and was used with Gas or Kero. Hence a GK jet.

 

Thanks for the help one and all. I believe I read that piece by snowgoose quite some time ago but I hadn’t registered the idea of one compromise jet working for both. Interesting. That explains the jet in my own G/K and probably that same unmarked multifuel jet had been used in the earlier DF.

 

I have not been convinced there is a 'one size fits all' jet. Is there?

 

I appreciate the conversation and information this site offers. I found it a few years ago when I’d come to own a Primus #5 Sr. but have since found it very entertaining and informative. I bought a Coleman 502 when I was in 8th grade, later a Svea 123R, then xgk shaker many more. It’s embarrassing but they’re interesting and useful. It’s a pleasure to listen to you guys discuss them. Thanks

 

We have a member here with a signature.

@kerophile

 

Hello Anfeng,
Thanks for that beautiful post with photos!
Any idea where I can find an owner's manual for the MSR G/K? Alternatively, would you consider scanning and posting it?
I am trying to revive my Dad's G/K. Last week I tried to use it but I could not get a hot flame.
Thank you
Double A

 

MSR - Mountain Safety Research

https://classiccampstoves.com/threads/msr-gk-not-xgk-stove-instructions-late-1970s.39723/

https://classiccampstoves.com/threads/msr-g-k-1978.27430/

https://classiccampstoves.com/threads/msr-g-gk-field-maintainable-stove.20662/

https://classiccampstoves.com/threads/msr-g-gk-instruction-booklet.19906/

https://classiccampstoves.com/threads/msr-gk-field-maintenance-instructions.13875/

 

Thank you! It turns out the stove my Dad gave me is a MSR-GK. With the help of the instruction manual I disassembled and cleaned it, cleared the fuel jet, and got a nice hot flame!
Really appreciate the help.
DoubleA

 

Very nice, thanks for sharing photos!!

 

Now that I got my 1978 GK working, I am trying to rehabilitate the sparker. But it's frozen, and the handpiece at the end will not stay on even when I tighten the side screw as much as possible. I was able to remove the outer nut that holds the sparker on the frame of the stove, but the shaft is frozen to the inside nut and will not rotate. In addition, the sparker wheel is loose and is rotating independent of the shaft. Does anyone know how to repair or replace the sparker unit?

Separately, the fuel jet is stamped with G and K, but I do not have an extra fuel jet. Does MSR still carry them? (They have not responded to several inquiries through their website.)

Thank you
DoubleA

 

@DoubleA
These sparkers clog up like old lighters over time, because the dust/debris from the flint can turn rock solid.
The most likely reason why your wheel have no resistance is because the flint is stuck (can be a PITA to get loose).
I’d recommend to dissasemble as much as you can, then soak every thing in WD-40 or similiar for a day or two.
Start by removing the spring for the flint, and see if you can poke the remaining piece of flint out with a thin steel rod or similar.
Remember that the sparker wheel must be clean and dry before using it.
If you’re still stuck - a pic or two would help us giving you the best advice.
NB: just use a standard flint for a ZIPPO or Ronson lighter.

 

On the "does one jet size suit all fuels" question, I have only an XK jet for my X-GK. That jet will allow lighter (gasoline style) fuels to be burned, but damps the maximum output with them. It takes about a minute longer on a rapid boil compared to using kerosene. On the plus side, it is a very clean burn.

So if ultra-rapid boiling (or snow melting) isn't required, using a kerosene jet for all fuels is an option.

 

G & K?
It should be a G or K, gas or kerosene.

 

I am happy to be corrected, but suggest X and G are the most likely letters on the single jet. And "X" could easily be mistaken for "K"