Nose Bowl Replacement

How to keep the Cessna 170 flying and airworthy.

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Poncho73
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Nose Bowl Replacement

Post by Poncho73 »

I finally started on repairing my 48 cowl. I’m currently concentrating on the nose bowl. Today I removed the nose bowl and subsequently discovered I need left and right angle rub strips p/n 0552000-9 and -10. Does anyone have a lead on where to get them. The originals were spot welded in place, my strips are not salvageable.
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GAHorn
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Re: Nose Bowl Replacement

Post by GAHorn »

You are very likely going to find it easier/simpler to make them yourself.... but Textron (Cessna) and AeroVal claim to have them available...IF you request a “quote”. Good luck with that.
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons. ;)
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Poncho73
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Re: Nose Bowl Replacement

Post by Poncho73 »

GAHorn wrote:You are very likely going to find it easier/simpler to make them yourself.... but Textron (Cessna) and AeroVal claim to have them available...IF you request a “quote”. Good luck with that.
Kind of expected that response...... anyone have a pre 52 lower cowl?
c170b53
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Re: Nose Bowl Replacement

Post by c170b53 »

I see curved wooden blocks in your future....or Univair if you scratch and win big :D
Jim McIntosh..
1953 C170B S/N 25656
02 K1200RS
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Poncho73
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Re: Nose Bowl Replacement

Post by Poncho73 »

I finished the angles today. Yes wood former and plenty of hammering
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DaveF
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Re: Nose Bowl Replacement

Post by DaveF »

Pics! Pics!
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Poncho73
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Re: Nose Bowl Replacement

Post by Poncho73 »

04BD37CA-A957-4B58-A27A-AFD3EB56455B.jpeg
Angle install pics
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Poncho73
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Re: Nose Bowl Replacement

Post by Poncho73 »

Moving along today I riveted the bowl to the main lower cowl skin. I will post the pics tomorrow. I was so busy I didn’t take pics today. Here are some of the pre-riveting cowl
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Poncho73
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Re: Nose Bowl Replacement

Post by Poncho73 »

Pic of the original bowl. After 73 years there have been numerous repairs
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Poncho73
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Re: Nose Bowl Replacement

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So tomorrow’s plan is to paint strip the grill vents and install then. Then install the winter front doubler and anchor nuts. Then continue work on the air inlet.....I have some mods that I’m considering.....certified of course. Also, every cowl screw fastener, previously tinnermans will be replaced with floating 10/32 anchor nuts and SS screws. Plenty of work but a worthy enhancement.
c170b53
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Re: Nose Bowl Replacement

Post by c170b53 »

Nice work on the cowl. Thanks for the pics.
Jim McIntosh..
1953 C170B S/N 25656
02 K1200RS
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DaveF
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Re: Nose Bowl Replacement

Post by DaveF »

Great-looking work! Thanks for the pics.

Is that a replacement Cessna nosebowl or did you make it yourself?
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Poncho73
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Re: Nose Bowl Replacement

Post by Poncho73 »

The new nose bowl is an NOS part. Keep in mind it is only a shell. There are no doublers/frames/stiffeners. You need to build them, or salvage from the old nose bowl. My nose bowl was beyond repair or salvage so I had to get creative and manufactured the frames. Moving forward, today I completed stripping the the grills and prepping them for install. A rivet squeezer is the best tool for this job. I also reinstalled the anchor nuts for the winter fronts. Couple of pics from today...the cowl is framed up and fits well. Tomorrow I’m working on the intake. As I said I have a plan for something new rather then the original cumbersome air scoop. Cheers all
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Poncho73
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Re: Nose Bowl Replacement

Post by Poncho73 »

Air scoop arrived. Sheet metal work coming up, plenty of cutting and fitting, rivet tomorrow
54320E93-C3FF-4B01-A42A-5CE092DF470A.jpeg. [attachment=1]54320E93-C3FF-4B01-A42A-5CE092DF470A.jpeg
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c170b53
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Re: Nose Bowl Replacement

Post by c170b53 »

Carbon fibre ? My aluminum has a few cracks, stop drilled but unsightly, might have to go that route.
Jim McIntosh..
1953 C170B S/N 25656
02 K1200RS
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