learning about exhausts

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learning about exhausts

Postby Wadds1 » Fri Aug 23, 2019 12:22 am

O.k I bit the bullet to try and quiet down the exhaust on the fergy a bit. Got a 6” x 16” universal 1 1/2 round muffler off good old ebay that slips straight on. Had a bit off stainless I fitted for a tip. Sounds noticeably quieter than before. So I thought maybee a restriction at the end would make it even quieter. Turned one up and fitted it and was worse, sort of puffed. Then I tried the restricter the other way round and was WAY better.
Just gotta re-machine to go in the other way now.
Learning about exhausts
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Re: learning about exhausts

Postby Wadds1 » Fri Aug 23, 2019 12:25 am

Could not fit this one in last post
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Re: learning about exhausts

Postby Hiawatha » Fri Aug 23, 2019 3:23 am

My TED came with a resonator , they used to be called a ' Hot Dog ' muffler back in the days before the world turned to $h!t , along with the muffler from a small four cylinder sedan . The whole set up looked awful but it was incredibly quiet even though the muffler had several rust holes in it .
I have the typical under slung Sparex replacement fitted now and it is as noisy as a Mac truck , so I'm not happy at all with it . Yet original mufflers ; yes there are some that survive , look exactly like the modern replacement but are so much quieter , so much so that on moderately windy days the tractor really can't be heard running , apart from the odd noisy tappet .
I did try to make a muffler for the 'Gold One' once , small LP gas bottles are just about the right size for this , especially the disposable ones . It did work but looked a trifle too modern for my liking so it's now on my neighbour's previously bloody noisy water pump , a small win I suppose .

Well done Wadds , I would be interested to hear it running :smile:
-------- 1952 TED, 1957 FE35 Grey and Gold Deluxe
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Re: learning about exhausts

Postby Grunt » Fri Aug 23, 2019 8:44 am

I can’t remember whether it’s diesel or not, if not have you checked the colour of the plugs since fitting. I can’t see it making much difference but it might give a vague idea as to whether you need to alter the carburation.
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Re: learning about exhausts

Postby Wadds1 » Sat Aug 24, 2019 1:59 am

I haven’t had it out on the road yet but that is a good idea Grunt. Yes she’s a petrol. Have to make up a support bracket for the rear and take the old beast for a fang and see how it goes. Trouble now is I can hear all the other noises that I couldn’t before!
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Re: learning about exhausts

Postby Wadds1 » Sun Aug 25, 2019 1:14 am

Definitely Quieter but could be Better I think
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Re: learning about exhausts

Postby Wadds1 » Sat Sep 14, 2019 5:11 am

Grunt wrote:I can’t remember whether it’s diesel or not, if not have you checked the colour of the plugs since fitting. I can’t see it making much difference but it might give a vague idea as to whether you need to alter the carburation.


Just took the old girl for its first run since new exhaust and thermostat housing etc.
She seems very happy in fact much smoother throughout the rev range, maybee there’s a bit more back pressure now I’m thinking, but the old bus seems to like it.
Grunt I pulled a plug and it’s sooty and also a little at tip of exhaust. Main screw on carby is set at 1 3/4 turns out. Do ya reckon I should adjust a bit leaner or leave it as tractor seems happy. Not sure how rich or lean these old beasts like to be.
Cheers
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Re: learning about exhausts

Postby Hiawatha » Sat Sep 14, 2019 8:43 am

Leave it as it is Wadds, a little extra fuel is far cheaper
to live with than burnt valves .
-------- 1952 TED, 1957 FE35 Grey and Gold Deluxe
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Re: learning about exhausts

Postby Grunt » Sat Sep 14, 2019 9:47 am

I’d probably leave at well so long as it’s running ok, A bit rich is better than a bit lean. The current way of thinking is to kill the engine after it’s been running at mid to high revs for a while and check the plugs then, this is when your most likely to hole a piston if the air/fuel mixtures wrong.
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Re: learning about exhausts

Postby Wadds1 » Sat Sep 14, 2019 11:44 pm

Thanks for the replies chaps I will leave her a tad rich then!
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