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91
CB350/400 / Re: Yoshimura 466 kit on EBAY UK
« Last post by SteveD CB500K0 on April 26, 2024, 07:57:01 PM »
Only if someone complains Andy.

There’s nothing stopping people selling stuff on here.

If members find it useful then good…


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92
CB500/550 / Re: Rocker Housing - Stuck??
« Last post by Mike_Berkshire on April 26, 2024, 07:49:07 PM »
Im assuming that the dowels are designed to be retained in the head and not in the rocker housing? Giving the top end of the dowel a few taps with a blunt punch might hep free off some of the corrosion?
93
CB500/550 / Re: Rocker Housing - Stuck??
« Last post by Mike_Berkshire on April 26, 2024, 07:15:49 PM »
Quote from: Nurse Julie on April 26, 2024, 06:50:57 PM
2 solid dowels there, you can see the top of them, soak with penetrating oil and leave it with overnight. If still stuck, gentle diffused heat will help. Don't forget to remove the all the tappets before trying to remove the rocker cover.
Thanks Julie. I will douse them in penetrating oil and leave overnight as suggested. Its probably a good idea to put the bolts back in to keep the castings flush? I will see how things are tomorrow morning.
94
Other Bikes / Re: BMW R80
« Last post by Orcade-Ian on April 26, 2024, 06:56:23 PM »
Another page on the site that I'd forgotten I had posted - am I getting old?

http://www.stallard-engineering.co.uk/stories/Bikes/European/BMW%20R100RT%20Part%202.htm

Ian
95
CB500/550 / Re: Rocker Housing - Stuck??
« Last post by Nurse Julie on April 26, 2024, 06:50:57 PM »
2 solid dowels there, you can see the top of them, soak with penetrating oil and leave it with overnight. If still stuck, gentle diffused heat will help. Don't forget to remove the all the tappets before trying to remove the rocker cover.

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96
CB350/400 / Re: Yoshimura 466 kit on EBAY UK
« Last post by andy120t on April 26, 2024, 06:25:42 PM »
..I hear a ban approaching...!
97
CB350/400 / Re: Yoshimura 466 kit on EBAY UK
« Last post by SteveD CB500K0 on April 26, 2024, 06:22:05 PM »
10 years you’ve been on here and only 16 posts.
Selling stuff.


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98
CB500/550 / Rocker Housing - Stuck??
« Last post by Mike_Berkshire on April 26, 2024, 06:13:32 PM »
Following the successful (final) removal of the seized oil filter bolt and the seized engine hanger I have got the engine out and on the workbench. Sump, breather cover, cam end covers removed. Rocker cover/assembly screws and bolts all removed thanks to the impact driver and JIS bits recommended by this forum. However, the rocker cover/assembly wont lift off. I have given it a few taps with the soft mallet and checked for hidden bolts but I cant see anything I have missed. There is a clear gap at the front of the engine between the cover and the head but at the back (intake side) there is no gap at all. It looks as if there are a couple of locating dowels on the back edge which if steel may have corroded and stuck fast. Is there a bolt/screw I may have missed and what are the thoughts about the locating dowels sticking; does this happen and if so is there a remedy? I have attached an aerial view in case there is something obvious to the experts. Many thanks. Mike
99
Other Bikes / Re: BMW R80
« Last post by Orcade-Ian on April 26, 2024, 06:08:58 PM »
Hi Dave,
I've had an R65 many years ago and an R100 RT Classic more recently. Engines are virtually bomb-proof - if servicing has not been skimped.  Depending on the year, gearboxes can be troublesome. Not sure of change points but early bikes had a circlip holding a bearing in place.  BM accountants decided it wasn't necessary as the bearing couldn't come off the shaft!  True, BUT it could move and cause bearing failure.  Saved them a few pence on each bike. Many replaced under warranty, so the circlip was refitted and the groove re-introduced.  My 95 R100 had the groove - a friends 88 R80 didn't.  I made a rig for the lathe to re-machine the groove in the hardened shaft with a thin grinding disc in the dremel.  All gearboxes can suffer from gearchange spring failure which leaves you in whichever gear you were in when it failed.  A few special tools needed to strip the box and the casing has to be heated to get everything out.  I made the tools and gave them to the mate with the R80 but could beg them back if you needed them.

http://www.stallard-engineering.co.uk/stories/Bikes/European/BMW%20Gearbox%20Tool.htm


Ian
100
CB500/550 / Re: CB550 Oil Filter Bolt Removal
« Last post by Mike_Berkshire on April 26, 2024, 06:00:20 PM »
Quote from: McCabe-Thiele (Ted) on April 26, 2024, 03:45:14 PM
I fitted this one 15420-300-020P a Honda part iirc 17 mm head listed for the CBX1000 that fits the 500/550 etc

I think it differs from the original as it has a bigger bolt head - not sure if its Chromed or something like BZP.
Some of the cheaper aftermarket ones do not have as many holes in the center section.

https://www.ebay.co.uk/itm/264943691840?itmmeta=01HWDDES73CKH5R32S12N9A5G9&hash=item3dafdfe840:g:u6QAAOSw8NtftZ1Z&itmprp=enc%3AAQAJAAAA8AzdMM%2BMWvZhhc3hpVrufY7HefzhlpBjKh9LzaHr%2BTT80HHYlIkG7YpopkBeJ%2FZ3XZh9zXeBaFEunnCDsd59kDVcH5j8xDbcFsICz9d5BtbEkzKUc2pnCo2OAF31Uob6BMrjg%2FrdKilBzxfgSWoyHWTZlQgnb0uBUEumpEYCd4%2FUT2PcHd4F%2FsGJlq6YMUyP9j3BJOUwkNMNTzoicdxObtnFl8FEShqtm0GMg1uF7hszwt80PGodPrm7IqxcdLonbebs--hlBAFjJNdpl8%2Fmn%2BQ1SU60yojghbXjfGLWmDOVzJ%2F1B52BKx6eaDVoCu32NA%3D%3D%7Ctkp%3ABFBM0pO7reNj

.https://www.ebay.co.uk/itm/264943686943?itmmeta=01HWDDES73YBCGWN4KZ8V7S89P&hash=item3dafdfd51f:g:u6QAAOSw8NtftZ1Z&itmprp=enc%3AAQAJAAAA8JrIwGRHmeU0aMJnday6MO%2B1H1pfpTS9yb76oegYbFuMXrq1Fl1eV3Tws9HdYd0FJbf7oUns3U14PrOi9z8Z3jatktB%2FXDiCvT%2FGOQFh2tzFT0YzXPxeBXbB20dSWVnUR%2FKnBFuZmiEtRZDfz%2FhR1QrFK6xQEg%2BM%2B1ueBOuFFm13NQ7hJ7JGLbhUuqQ2YU56hDA%2B%2Fxbqg4fIaeMTStWhhAmofAcfB86Lql5Kfyd0QAswCjkxo%2FBYXbBGAZWytMZAyU3khw5oOJAkxKLHXa4pZzVpInUxBW4Qvqikwqlf4TZEQlLpcsqu82Fgtl2rL1GVMg%3D%3D%7Ctkp%3ABk9SR9KTu63jYw
Perfect, thanks! I now have a new challenge and have made a new post - cant seem to remove the rocker housing now! Cheers. Mike
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