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Cox Engine of The Month
Five ( Three left )Cox .049 silencers for sale
Page 1 of 1
Five ( Three left )Cox .049 silencers for sale
I have for sale "Five" Cox .049 silencers with gasket/shims.
They are designed similar to the Cox car silencer where the cylinder screws down onto the silencer and tightens down on the crankcase.
These silencers are similar in design to the Cox .020 mufflers but slightly larger to accommodate the Cox .049 engine
Top of silencer
Bottom of silencer
Installation instructions
Please check the cylinder dimensions:
As the cylinder sleeve sizes vary slightly you might have to adjust the fit?
The parts that interfere (i.D.) with the engine cylinder will need to be shaped. (enlarged?)
Using a slightly undersized wooden dowel and some 220-grit sandpaper wrapped around the dowel to carefully enlarger the hole for the cylinder sleeve by twisting the dowel/sandpaper in the hole to enlarge it. Don't overdo it now! you want a snug /slip fit.
Included with the silencer are two different thickness size shims (.008" / .012") (0.2mm/ 0.3mm) to give the silencer a tight enough fit when the cylinder is tightened down and the silencer is snug enough to not move. If it does, you'll need to add one of the shims on the bottom side of the silencer.
One more FYI (if necessary) -- use a small amount of Permatex (non-hardening) gasket sealant on the upper and lower faces of the silencer to get a really good seal.
The exhaust tubing is 5mm I.D. diameter.
If you are still interested in one of them let me know.
The cost with shipping is $44.15 using Friend & Family through PayPal.
If you use Merchandise, then the cost is $46.14 (PayPal's 4.5% Fee)
Private email me (message) if interested
I'm posting it here first before posting on the R/C Group Classifieds.
What every doesn't sell I'll be posting it there afterwards.
Thanks,
sosam117
Mike Mac
They are designed similar to the Cox car silencer where the cylinder screws down onto the silencer and tightens down on the crankcase.
These silencers are similar in design to the Cox .020 mufflers but slightly larger to accommodate the Cox .049 engine
Top of silencer
Bottom of silencer
Installation instructions
Please check the cylinder dimensions:
As the cylinder sleeve sizes vary slightly you might have to adjust the fit?
The parts that interfere (i.D.) with the engine cylinder will need to be shaped. (enlarged?)
Using a slightly undersized wooden dowel and some 220-grit sandpaper wrapped around the dowel to carefully enlarger the hole for the cylinder sleeve by twisting the dowel/sandpaper in the hole to enlarge it. Don't overdo it now! you want a snug /slip fit.
Included with the silencer are two different thickness size shims (.008" / .012") (0.2mm/ 0.3mm) to give the silencer a tight enough fit when the cylinder is tightened down and the silencer is snug enough to not move. If it does, you'll need to add one of the shims on the bottom side of the silencer.
One more FYI (if necessary) -- use a small amount of Permatex (non-hardening) gasket sealant on the upper and lower faces of the silencer to get a really good seal.
The exhaust tubing is 5mm I.D. diameter.
If you are still interested in one of them let me know.
The cost with shipping is $44.15 using Friend & Family through PayPal.
If you use Merchandise, then the cost is $46.14 (PayPal's 4.5% Fee)
Private email me (message) if interested
I'm posting it here first before posting on the R/C Group Classifieds.
What every doesn't sell I'll be posting it there afterwards.
Thanks,
sosam117
Mike Mac
Last edited by sosam117 on Mon Apr 01, 2024 6:38 am; edited 2 times in total (Reason for editing : quantity update)
sosam117- Diamond Member
- Posts : 1292
Join date : 2016-03-23
Location : Suburb of Chicago, Illinois
Re: Five ( Three left )Cox .049 silencers for sale
I bought 1 to test, the 5mm ID header should help the engine breath.
Thank you Mike!
Thank you Mike!
1/2A Nut- Top Poster
- Posts : 3436
Join date : 2013-10-20
Age : 60
Location : Brad in Texas
Re: Five ( Three left )Cox .049 silencers for sale
Hi Mike, What's the approx. weight of the silencer?
Re: Five ( Three left )Cox .049 silencers for sale
roddie wrote:Hi Mike, What's the approx. weight of the silencer?
Roddie,
The .020 silencer is 1.3 grams and the .049 is 2.4 grams
sosam117- Diamond Member
- Posts : 1292
Join date : 2016-03-23
Location : Suburb of Chicago, Illinois
sosam117- Diamond Member
- Posts : 1292
Join date : 2016-03-23
Location : Suburb of Chicago, Illinois
davidll1984- Diamond Member
- Posts : 2293
Join date : 2020-02-12
Age : 39
Location : shawinigan
1/2A Nut- Top Poster
- Posts : 3436
Join date : 2013-10-20
Age : 60
Location : Brad in Texas
Re: Five ( Three left )Cox .049 silencers for sale
I definitely would like one. PM sent to Sosam 117
Mark Green
Mark Green
Greenman38633- Gold Member
- Posts : 146
Join date : 2024-02-05
Re: Five ( Three left )Cox .049 silencers for sale
Greenman38633 wrote:I definitely would like one. PM sent to Sosam117
Mark Green
O.K. Mark!
Sent you a PM on payment.
Thanks,
Mike Mac
sosam117- Diamond Member
- Posts : 1292
Join date : 2016-03-23
Location : Suburb of Chicago, Illinois
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