Scudrunners

Wow. 

In my experience, if you even look sideways at a Lycoming,
it will be full of internal corrosion.

Not so much with the Continental.  It must have been
neglected for a very long time indeed.

One word:  [b]Camguard[/b].  I wish I was sponsored by them!
I run 10% in both Lycoming and Continental, that are flown
infrequently.  I can smell it on final, when I pull the throttle
back, I have so much of that stuff in the oil.

PS  Unless you are flying in the cold, don't use that expensive
multigrade with the thin base oil and plastic VI's that burn off.

W100 and Camguard.

[quote author=Colonel Sanders link=topic=8973.msg24596#msg24596 date=1536256749]
Not so much with the Continental.  It must have been
neglected for a very long time indeed.[/quote]
Unfortunately it was.  The little thing fired up and ran like a champ back when it was flown almost daily through the summer then it flew less, started to become persnickety, flew even less still, got harder to work with, and so on until it basically just sat for a year.


[quote author=Colonel Sanders link=topic=8973.msg24596#msg24596 date=1536256749]One word:  Camguard.[/quote]
Funny you should mention that, I plan to fly down to ACS next week to pick up a bottle of it.  I've also kicked around the idea of desiccant exhaust plugs.


[quote author=Colonel Sanders link=topic=8973.msg24596#msg24596 date=1536256749]Unless you are flying in the cold...[/quote]
Not a problem, these antiques are fair weather flyers and we run single weight mineral oil in them.

[img width=500 height=218][/img]

If you can't read the above, you are not eligible to hold
any category of Canadian aircrew medical.

PS  For a hard core inhibiting oil, instead of W100 and
Camguard, consider W120 and Camguard, which will
keep the top cylinders of your radial shiny.  I hate that
25W60 crap.

[quote author=Slick Goodlin link=topic=8973.msg24579#msg24579 date=1536165377]
[quote author=David MacRay link=topic=8973.msg24576#msg24576 date=1536160218]
Tachometer? Are you deaf?
[/quote]
I thought the tach was a little redundant too.  A hot, humid day and a fat pilot pretty well call for full throttle all the time anyways.
[/quote]
So, you've seen me fly in the summer....

[quote author=Colonel Sanders link=topic=8973.msg24602#msg24602 date=1536258646]
[img width=500 height=218][/img]

If you can't read the above, you are not eligible to hold
any category of Canadian aircrew medical.

PS  For a hard core inhibiting oil, instead of W100 and
Camguard, consider W120 and Camguard, which will
keep the top cylinders of your radial shiny.  I hate that
25W60 crap.
[/quote]


That's a good one. I went in to fix the tags and wondered what was going on there

[quote author=Rosco P Coltrane link=topic=8973.msg24616#msg24616 date=1536348638]That's a good one. I went in to fix the tags and wondered what was going on there
[/quote]
I thought I beat you to it.  No idea why the forum still jams in some size tags out of nowhere from time to time.

Another serious problem with engines that sit (in addition to
internal corrosion) is [b]valve sticking[/b].

This is a HUGE problem.  Ever see bent pushrods?  They got
that way, because valves were stuck.

Now you can mechanically remove the carbon and lead from
the valve stem and guide (eg Lyc SI 1425A) or you can look
at pouring crud into the crankcase to soften the carbon to
increase the stem-to-guide clearance.

Nothing softens lead deposits.  You have to mechanically
remove them, in my experience.

So.  You can pour Avblend into your crankcase, which is
the most expensive FAA-approved solvent (ether) that you
will ever purchase.  That's what you use [b]AFTER[/b] you take
the engine out of storage.

But [b]BEFORE[/b] you stop running the engine, the way you stop
valves from sticking is to change the oil to W100 or W120
and add 10% Camguard and run it up, to circulate the goodness.

Jesus, I wish they sponsored me.  That fucking stuff is so expensive.

I don't understand it, but after years of personal experience,
I have learned that in addition to slowing down internal corrosion,
Camguard stops valves from sticking in stored engines.

I thought it was total BS when I read that Camguard stopped
valves from sticking.  That's not possible, I thought - anything
that acts so well as a corrosion inhibitor can't [i]possibly[/i] function
as a solvent.

But, it's true.  You use Camguard, no more sticking valves
with a parked engine.  Years and years of experience have
taught me that.

I just wish it wasn't so expensive, but like a painful divorce,
Camguard is not cheap, but it's well worth it in the long run.

That short fat bald guy that invented Camguard should get
a fucking Nobel Prize.  Fuck, Yasser Arafat (PLO) got a Nobel
Peace Prize for "most improved".  Seriously.  Look it up.