Crankshaft main journal service limit

How to keep the Cessna 170 flying and airworthy.

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T. C. Downey
Posts: 548
Joined: Sat Jan 26, 2013 5:58 am

Re: Crankshaft main journal service limit

Post by T. C. Downey »

Send it out to Aircraft specialities in tulsa for rework. It will come back looking like new and if you wish, with new fitted bearings.
C170U2
Posts: 436
Joined: Sat Dec 22, 2012 4:30 am

Re: Crankshaft main journal service limit

Post by C170U2 »

Thats why I like mechanical tools that don't require batteries!
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DaveF
Posts: 1565
Joined: Sat Nov 03, 2007 1:44 am

Re: Crankshaft main journal service limit

Post by DaveF »

What kind of caliper did you use? I've never heard of that happening. Even my $10 Harbor Freight special gave the right readings until the battery was so low that the display was unreadable.
T. C. Downey
Posts: 548
Joined: Sat Jan 26, 2013 5:58 am

Re: Crankshaft main journal service limit

Post by T. C. Downey »

Aryana wrote:Thanks Tom. That's exactly what I want to get done.
This is what they look like when they come back.
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hilltop170
Posts: 3485
Joined: Sat May 06, 2006 6:05 pm

Re: Crankshaft main journal service limit

Post by hilltop170 »

Aryana wrote:I bought an engine to rebuild as a spare, but after taking it apart it looks like the crank is beyond limits. Before I write it off, can anyone double check this for me? :( ]
So, did you get a good deal after all?
Richard Pulley
2014-2016 TIC170A Past President
1951 170A, N1715D, s/n 20158, O-300D
2023 Best Original 170A at Sault Ste. Marie
Owned from 1973 to 1984.
Bought again in 2006 after 22 years.
It's not for sale!
Grasshopper.Kingdom
Posts: 55
Joined: Sat Apr 13, 2013 1:10 pm

Re: Crankshaft main journal service limit

Post by Grasshopper.Kingdom »

What engine is this that you are offering parts from? I'm looking to put together a C-145. What parts do you have that would work for a C-145? Pieter 973-615-1258
hilltop170
Posts: 3485
Joined: Sat May 06, 2006 6:05 pm

Re: Crankshaft main journal service limit

Post by hilltop170 »

Aryana wrote:
The sump was bad...corrosion in the usual spot near the front drain. That one is a loss.

Arash-
How did you determine the sump was bad, had it been weld repaired already, or was there a hole all the way thru? I'm curious.
Richard Pulley
2014-2016 TIC170A Past President
1951 170A, N1715D, s/n 20158, O-300D
2023 Best Original 170A at Sault Ste. Marie
Owned from 1973 to 1984.
Bought again in 2006 after 22 years.
It's not for sale!
hilltop170
Posts: 3485
Joined: Sat May 06, 2006 6:05 pm

Re: Crankshaft main journal service limit

Post by hilltop170 »

From an earlier post, Tom Downey says he can repair it, but it might be expensive. It might be worth it if someone needs one bad enough.
Last edited by hilltop170 on Sat Nov 30, 2013 4:26 am, edited 1 time in total.
Richard Pulley
2014-2016 TIC170A Past President
1951 170A, N1715D, s/n 20158, O-300D
2023 Best Original 170A at Sault Ste. Marie
Owned from 1973 to 1984.
Bought again in 2006 after 22 years.
It's not for sale!
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