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The Cameraman
Joined: 22 Aug 2015 Posts: 608 Location: Lancashire
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Posted: Sun Apr 24, 2016 5:59 pm Post subject: |
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Hi Shaun,
cheers matey. _________________ Kindest regards
Reggie |
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fazey Show Star !
Joined: 08 Aug 2015 Posts: 248 Location: matlock
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Posted: Mon Apr 25, 2016 5:40 pm Post subject: |
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Good work reggie. |
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The Cameraman
Joined: 22 Aug 2015 Posts: 608 Location: Lancashire
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Posted: Mon Apr 25, 2016 6:50 pm Post subject: |
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Cheers Fazey,
just awaiting parts, and the time to do it! _________________ Kindest regards
Reggie |
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The Cameraman
Joined: 22 Aug 2015 Posts: 608 Location: Lancashire
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Posted: Thu Apr 28, 2016 2:50 pm Post subject: |
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Hi Guys n Gals,
well the parts have arrived today so I'll do a bit of prep work, that's all.
A question though, I was hoping to leave the barrel in place, so I didn't need to faff about with the piston rings but considering the colour of the coolant I was wondering if you guys would remove it clean it or would you leave it in situ?
My plan was to leave it where it is, give the head a good cleaning, then to fill the cooling system with water and run the bike for a few minutes, before dropping the fluids and changing it for proper coolant.
I've already rinsed out the radiator and bought new hoses ready to replace them and I'll be dropping the expansion tank etc, to clean it later.
Any comments would be appreciated.
Photo's will follow later, as I've just stopped for a brew! _________________ Kindest regards
Reggie |
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AR-jack
Joined: 08 Sep 2015 Posts: 144 Location: durham
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Posted: Thu Apr 28, 2016 4:23 pm Post subject: |
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May want to take the barrel off and put a new gasket on while your there you can check the crank ect
If its like a few I've taken apart it may have a pub menu as then gasket lol _________________ ar125 a1 1983, ar125 b2 1988, ar125 b4 1988, ar125 b7 1991, kinroad xt50q 2011
XD
jack |
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The Cameraman
Joined: 22 Aug 2015 Posts: 608 Location: Lancashire
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Posted: Thu Apr 28, 2016 6:21 pm Post subject: |
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Hi AR-jack,
cheers matey.
What's the best way to keep the piston rings in tight, when replacing the barrel? _________________ Kindest regards
Reggie |
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AR-jack
Joined: 08 Sep 2015 Posts: 144 Location: durham
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Posted: Thu Apr 28, 2016 7:59 pm Post subject: |
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i lower the barrel back back on the piston then compress the top ring with my finger and gentaly lower the barrel over it then do the second ring
with the crank at half way so you can turn it over to help
also make sure the piston and barrel has oil on it
its fairly easy just make sure the rings are lined up and the piston is the right way around _________________ ar125 a1 1983, ar125 b2 1988, ar125 b4 1988, ar125 b7 1991, kinroad xt50q 2011
XD
jack |
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AR-jack
Joined: 08 Sep 2015 Posts: 144 Location: durham
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Posted: Thu Apr 28, 2016 8:01 pm Post subject: |
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sorry im not the best at explaining _________________ ar125 a1 1983, ar125 b2 1988, ar125 b4 1988, ar125 b7 1991, kinroad xt50q 2011
XD
jack |
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The Cameraman
Joined: 22 Aug 2015 Posts: 608 Location: Lancashire
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Posted: Thu Apr 28, 2016 9:48 pm Post subject: |
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Hi AR-jack,
makes sense to me mate. _________________ Kindest regards
Reggie |
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fazey Show Star !
Joined: 08 Aug 2015 Posts: 248 Location: matlock
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Posted: Fri Apr 29, 2016 6:51 am Post subject: |
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i have done mine 5 or 6 times and do it the same way as jack.
pretty simple really. |
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The Cameraman
Joined: 22 Aug 2015 Posts: 608 Location: Lancashire
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Posted: Fri Apr 29, 2016 7:54 pm Post subject: |
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Hi Fazey,
cheers matey.
How's the powder coated head standing up to use then? _________________ Kindest regards
Reggie |
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fazey Show Star !
Joined: 08 Aug 2015 Posts: 248 Location: matlock
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Posted: Fri Apr 29, 2016 8:52 pm Post subject: |
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Still looks like New. But only done 90 miles.
Don't forget flat headed screw driver to push rings in.... |
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The Cameraman
Joined: 22 Aug 2015 Posts: 608 Location: Lancashire
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Posted: Mon May 02, 2016 4:37 pm Post subject: |
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Hi Guys n Gals,
well it was time to remove the barrel to find this, with half of the original gasket left on the base.
And the rest found on the barrel.
Here's a view of the lining.
After much cleaning, the barrel came out like this and ready to accept a replacement gasket.
And I cleaned the top up a bit as well.
The piston didn't look too bad on one side.
But the other side looked like this!
And here's the engine area came up like this.
So what do our esteemed members reckon as me, being a four stroker, I reckon it's time for a new piston and the re-honing of the barrel. Any comments will be much appreciated, as would be a recommendation for a shop to do the re-honing (I'd prefer somewhere in Lancashire, with me being a Bolton lad an always like to support local businesses). _________________ Kindest regards
Reggie |
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AR-jack
Joined: 08 Sep 2015 Posts: 144 Location: durham
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Posted: Mon May 02, 2016 7:16 pm Post subject: |
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looks like you got worn rings as for the piston with it been dirty looks petty worn and barrel looks glazed
could probs get away with a quick hone and new rings if the piston has nice fit and overhaul conditon is good
but that depends on how well the bore is
if marked a rebore new piston and ring is more or less a must
dont use k.h.c piston ring the wont last a tank of petrol the pistons are ok (nothing special)
and 150 mile run in not going above 6/7k rpm unless for a second
also how was the compression , starting ect..? _________________ ar125 a1 1983, ar125 b2 1988, ar125 b4 1988, ar125 b7 1991, kinroad xt50q 2011
XD
jack |
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Straycat
Joined: 22 Jul 2015 Posts: 165 Location: Canada
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Posted: Mon May 02, 2016 7:26 pm Post subject: |
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Good that you took the Cylinder off Reggie, Id be putting a new piston and rings into it, give it a hone and see how the bore looks.
being this far, might as well put new in to it, i'd say.
nice job cleaning up the head. _________________ 2014 Honda VFR800
2015 Yamaha FJ09
2000 Kawasaki ZRX1100
1989 Yamaha RZ350 ypvs
1989 Yamaha FZR400
1987 Suzuki RG250 Gamma
1986 Honda NS400R
1988 RGV250 VJ21A-J
1986 Honda TLR200 Reflex
1985 Honda VF1000R (x2)
1985 Yamaha RZ500 |
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