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Re-Fitting Cylinder Block / Jugs Onto Pistons.
- strate6
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11 years 1 month ago #249
by strate6
Why Have Four When You Can Have Six ?
Re-Fitting Cylinder Block / Jugs Onto Pistons. was created by strate6
With past engine rebuilds I have carried out on 1300/6 models, I have always fitted the pistons with rings into the barrels first, then lowered the barrels over the studs & offered 2 con-rods upto 2 pistons at a time & put gudgeon pin through & fitted new cir-clip....then onto another 2 & so on until all 6 are connected. Its a 2 man job as its impossible to hold the barrels in place & connect everything up yourself, but if done carefully & patiently does not take long.
Having looked at other owners sites recently for XS1100 & CB750's etc, it appears the more favored way to do this is to fit the pistons & rings onto the con-rods first, then lower the barrels over them 2 at a time.
I am very interested to know how other 1300 owners have done this themselves in the past & any experience or tips.
Pete
Having looked at other owners sites recently for XS1100 & CB750's etc, it appears the more favored way to do this is to fit the pistons & rings onto the con-rods first, then lower the barrels over them 2 at a time.
I am very interested to know how other 1300 owners have done this themselves in the past & any experience or tips.
Pete
Why Have Four When You Can Have Six ?
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- zoso
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11 years 1 month ago #250
by zoso
Replied by zoso on topic Re-Fitting Cylinder Block / Jugs Onto Pistons.
Pete
I've not done it on a 1300. On both an XS1100 and a Z1000 I fitted the pistons to the con rods first of all then lowered the barrels over the studs. You definitely need an extra pair of hands though.
I've not done it on a 1300. On both an XS1100 and a Z1000 I fitted the pistons to the con rods first of all then lowered the barrels over the studs. You definitely need an extra pair of hands though.
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11 years 1 month ago #262
by kza13
Replied by kza13 on topic Re-Fitting Cylinder Block / Jugs Onto Pistons.
I did mine while the motor was apart, had all the pistons out of the bike, haven't done the lowering the barrels over the piston bit "yet", as a bit of a bush mechanic I did use a egg ring ( the aluminium ring used to fry eggs) and hose clamp as a ring compressor to slide the pistons in, just trimmed the egg ring to suit and put a clamp around it, worked well and cheap , funny what works when you need something and have a bit of imagination
after tuesday even the calendar goes WTF
1979 KAWASAKI Z1300 A1 WITH A DJP SIDECAR
Frame No: KZT3OA003911
Engine No: KZT3OAE004153
Location: Queensland Australia
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- Phil
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11 years 1 month ago - 11 years 1 month ago #264
by Phil
Only dead fish go with the flow
Replied by Phil on topic Re-Fitting Cylinder Block / Jugs Onto Pistons.
Hi Pete, I did it the way you describe, lowering the block with the pistons fitted, I wasn't aware of the other way to be honest :blush:
It does take two pairs of hands, we lowered the block with the two outer pistons at TDC & the other four at, or near BDC & fed a piston in each. It gets a bit more difficult with the inner four pistons as you have to feed in two pistons each at the same time, but if you're patient & careful it is possible. The only thing is in the manual it states to position the rings at even intervals for optimum compression, which isn't possible with this method, but they rotate in service anyway
It does take two pairs of hands, we lowered the block with the two outer pistons at TDC & the other four at, or near BDC & fed a piston in each. It gets a bit more difficult with the inner four pistons as you have to feed in two pistons each at the same time, but if you're patient & careful it is possible. The only thing is in the manual it states to position the rings at even intervals for optimum compression, which isn't possible with this method, but they rotate in service anyway
Only dead fish go with the flow
Last edit: 11 years 1 month ago by Phil.
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- strate6
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11 years 1 month ago #273
by strate6
Why Have Four When You Can Have Six ?
Replied by strate6 on topic Re-Fitting Cylinder Block / Jugs Onto Pistons.
Thanks to all for info............especially to Phil for photo. The OIL sticker on the front headlamps made me chuckle.....thats the kind of system I use myself !!!!
I can see this being a stressful job as its been a long time since I last did it & my fingers are not as flexible as they used to be !!
Phil........did you use any ring compression devices or just squeeze them together with your fingers ?
Pete
I can see this being a stressful job as its been a long time since I last did it & my fingers are not as flexible as they used to be !!
Phil........did you use any ring compression devices or just squeeze them together with your fingers ?
Pete
Why Have Four When You Can Have Six ?
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11 years 1 month ago #295
by Phil
Only dead fish go with the flow
Replied by Phil on topic Re-Fitting Cylinder Block / Jugs Onto Pistons.
Glad that gave you a chuckle Pete lol
Yes, we squeezed the rings by hand, it is quite fiddly & there were a couple of stressful moments where pistons went in a bit cock-eyed & we thought we'd snagged rings but all was well in the end. Another tip is to run some emery cloth around the apex of the chamfer at the bottom of the liner to give the rings an easier time on the way in.
Yes, we squeezed the rings by hand, it is quite fiddly & there were a couple of stressful moments where pistons went in a bit cock-eyed & we thought we'd snagged rings but all was well in the end. Another tip is to run some emery cloth around the apex of the chamfer at the bottom of the liner to give the rings an easier time on the way in.
Only dead fish go with the flow
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