GS1100 Cam Lobe Centers

[limeex2]

Yes I do, The part number for anyone interested is: 26442-45000

What model is this part # and part from?

[scotgary]

I looked it up for a 1982 GS1100e, but it is used on many models.

[posplayr]

Yes I do, The part number for anyone interested is: 26442-45000

The cover is a US 1983 GS1100ESD part number only for like 500 bikes.

This doesn't look like it but then again I have never seen one of these. The head I had with one was a small cover.

Maybe this is a new part number not available at the time of production.

https://www.partzilla.com/product/suzuki/26442-45000

2018-12-06_18-48-17_ESD_Cover.jpg

[scotgary]

That plug has been used since 1978, first appearing on the DR 370/500 bikes.

[posplayr]

That plug has been used since 1978, first appearing on the DR 370/500 bikes.

Maybe the cap I had was actually aftermarket. This has been a while now (about 2010) I bought an 82-83 16V 1100 head and assumed it was ESD because it was black with a capped tach gear.

[Tom R]

[ATTACH=CONFIG]56909[/ATTACH]
gs1100sd

[Tom R]

[ATTACH=CONFIG]56910[/ATTACH]
gs1100sz

[Tom R]

IMG_0153.jpg
Pretty sure this is the 80 through 82 cam

[mmattockx]

[ATTACH=CONFIG]56911[/ATTACH]
Pretty sure this is the 80 through 82 cam

According to my service manual the 82 Z model got different cam timing than previous models. Your images are too small to tell anything off them or I would confirm they match what my manual has.


Mark

[GregT]

According to my service manual the 82 Z model got different cam timing than previous models. Your images are too small to tell anything off them or I would confirm they match what my manual has.


Mark

It would be nice to be able to read them - and work out what OE lobe centers were supposed to be....

[Tom R]

I don’t know why they turned out so small, they’re full resolution on my computer. I’ll try to repost later, but they’re out of the factory service manual too. Mostly it shows that the only real difference in the cams was a small bump in lift... and different timing due to different cam sprockets.

[posplayr]

I don’t know why they turned out so small, they’re full resolution on my computer. I’ll try to repost later, but they’re out of the factory service manual too. Mostly it shows that the only real difference in the cams was a small bump in lift... and different timing due to different cam sprockets.

FYI

https://www.thegsresources.com/_forum/showthread.php?140749-GS-GSXR-16V-Valve-Lift-Diameter&highlight=lift

[mmattockx]

Maybe the cap I had was actually aftermarket.

Could be, I got the one shown when I blanked off the tach drive last year.

It would be nice to be able to read them - and work out what OE lobe centers were supposed to be....

Ask and ye shall receive:


According to the Web Cams calculator that gives 110I/109E.


Mark

[GregT]

Only real change there is a slightly longer duration exhaust. Both respond well to advancing the inlet.

[Tom R]

CED5B126-C988-4EEF-BC38-AC460C028C30.jpg
From my notes....