0-300 engine issues

How to keep the Cessna 170 flying and airworthy.

Moderators: GAHorn, Karl Towle, Bruce Fenstermacher

User avatar
c170b53
Posts: 2527
Joined: Mon Apr 22, 2002 8:01 pm

Re: 0-300 engine issues

Post by c170b53 »

We can all speculate but I also hear Joe Friday " Just the facts man (ma'am)" from the engine tear down report.
Maybe a pic of the face of the offending lifter, our equivalent of DNA evidence, is what I (maybe we) want.
Jim McIntosh..
1953 C170B S/N 25656
02 K1200RS
pmel22
Posts: 73
Joined: Sat Sep 22, 2012 12:21 am

Re: 0-300 engine issues

Post by pmel22 »

Hi, just to clarify.... the number 1 cylinder had the valve issue. I told the mechanic to also replace number 6 because it also had the same time on it as 1. When he removed 6 he looked through and saw the lifter damaged. The lifter had nothing to do with the exhaust valve on number 1. The two issues have nothing to do with each other.
User avatar
canav8
Posts: 1006
Joined: Thu Sep 25, 2008 2:34 pm

Re: 0-300 engine issues

Post by canav8 »

pmel22 wrote:Hi, just to clarify.... the number 1 cylinder had the valve issue. I told the mechanic to also replace number 6 because it also had the same time on it as 1. When he removed 6 he looked through and saw the lifter damaged. The lifter had nothing to do with the exhaust valve on number 1. The two issues have nothing to do with each other.
Unless you know the answer, trust your mechanic
52' C-170B N2713D Ser #25255
Doug
pmel22
Posts: 73
Joined: Sat Sep 22, 2012 12:21 am

Re: 0-300 engine issues

Post by pmel22 »

All is well. Aero Engines of Winchester VA did a great job...have about 15 hours and its running great. Thanks for asking, btw I don't know if you remember but you sold me an overlay, and it looks great. Thanks again.
User avatar
3958v
Posts: 543
Joined: Tue Apr 23, 2002 12:00 am

Re: 0-300 engine issues

Post by 3958v »

Aero engines repaired a bad cam for me a few years ago and I was very satisfied with their work and price as well. The engine has never leaked less oil in the last 23 years. Bill K
Polished 48 170 Cat 22 JD 620 & Pug
User avatar
c170b53
Posts: 2527
Joined: Mon Apr 22, 2002 8:01 pm

Re: 0-300 engine issues

Post by c170b53 »

Just thought I'd mention this for two reasons; one, it seems there's a few out there pondering whether to buying a 170 with a high time engine and they may want to factor in the likely internal condition of their new machine.
Two, I recently disassembled another 0-300, running well but using oil. That engine had # 6 cylinder lobe issues likely due to the angle of the dangle of the engine in a 170.
http://www.tcmlink.com/pdf2/SID05-1B.pdf from Continental likely posted already but points out a good reason to change your oil frequently. I'll follow-up with pic's of the engine.
Jim McIntosh..
1953 C170B S/N 25656
02 K1200RS
User avatar
c170b53
Posts: 2527
Joined: Mon Apr 22, 2002 8:01 pm

Re: 0-300 engine issues

Post by c170b53 »

Sorry for the late follow up, been playing a classic mug's game of, make a million on an hourly wage. :roll:

Classic break down of the cam follower's hardened surface.
IMG_0108.jpeg
Attachments
IMG_0109.jpeg
Jim McIntosh..
1953 C170B S/N 25656
02 K1200RS
Post Reply