Post Number: 1
|Posted on Thursday, April 12, 2012 - 04:47 am: ||
Hi I am restoring a blaxland 3.5hp looking for a set of piston rings . Also what have people used to flush out the water jacket of scum and rust. If any one can help any advice for this green horn Thanks Tony Nearmy
Post Number: 119
|Posted on Thursday, April 12, 2012 - 05:32 am: ||
Go to the following website as they are in Adelaide and can supply the rings for you.
http://www.jp.com.au/JPPistons.html As for cleaning the water jacket there are many opinions on the subject. A product called Saltex is very good. Google it, they are based in Brisbane but may have an agent in SA. Electrolysis is a good method of cleaning as well. No doubt others will chip in as well with other ideas.
Regards and welcome to the group.
Post Number: 2
|Posted on Thursday, April 12, 2012 - 06:09 am: ||
Hi Dave thanks for that information I will carry on . Tony
Post Number: 63
|Posted on Sunday, April 29, 2012 - 05:52 am: ||
Just bought a blaxland twin on ebay all in bits but all there will need a lot of tlc to get in back especially getting bolts undone , the one transfering water from cylinder one to second barrel a brass one in a cast iron head .Any ideas. Tony did you try the saltex to clean the inside of the heads . Also the exhaust manifold is held on by a odd tapered hexagon headed bolt ??? any ideas ??? how to free except cutting them ????. The lucas mag is siezed also so will try and ease it free .
Post Number: 17
|Posted on Sunday, April 29, 2012 - 06:53 am: ||
After trying and all else has failed, you could cut the bolt off flush to the surface, then centre punch very carefully to assure exact centre, then use a cobalt drill for a pilot hole, 5/32 is a good strong size, `then with a conventional drill bit to the size required for the tap. Use an alpha machine tap HSSE. Look them up at www.alphagold.com.au
These taps and cobalt drill are very hard, you will not snap them off, in fact you can even drive the tap in with a cordless drill.
I recently drilled and tapped a thread in a case hardened gearbox part using these tools.
You'll need to do your homework on the final size bolts you'll use , because these tools only come in certain sizes. You'll get them at any good nuts/bolts store.