Hi all,
I have an old suburu robin 5hp engine that needs a new muffler as the current one is rusted and has a huge secton missing out the bottom.
Now it got me thinking, it's a fairly simple design, I would be able to get away with a 3" bit of pipe for the main barrel, but I'm not sure what to do about the internals? Ideally I would like to keep it running fairly quiet.
Anyone done something like this before? If you have any photos or links please post up.
Thanks
Hi Victa,
As Grumpy said, it's probably a better bet to get another one. Many mower parts suppliers have "universal" type mufflers that you could use but you would need to match it to what your engine needs (back pressure etc.)
On the other hand, if you want to make it for the pleasure of making your own then give it a go but, again, as Grumpy said - keep it light weight or you will have problems if it is not securely mounted.
I restore vintage stationary engines and have made quite a few mufflers but these are usually of a much heavier construction than today's high performance small engines and, seeing as the engines that I restore never do any real work apart from running at idle speed at shows (rallies to you Aussies) the actual design and performance of the muffler is not as important as for today's engines.
You can see one here for my old 1936 Maytag Hit'nMiss washing machine engine( 2 stroke)
Homemade Maytag Muffler and another here for a 1928 Wolseley
Wolseley "R" Type silencer Jerry
