IO-470 engine in a 260, 14-19-3

[Don Jeffery]

Help!

1.
I have a 260, they have the IO-470 engine and I have it in many many pieces. It started as an inspection because of a prop. strike and grew and grew. Now I'm looking at the exhaust system and how it fits onto the jugs. All the jugs show leaks at the connection between the exhaust port and the header pipe. I see ads for exhaust gaskets and "blow proof" exhaust gaskets. I have a blow proof type on my C-85 and like them. The ones I got with the gasket kit are a metal gasket caged in a ring.

I sure would like to hear some experience in getting a good seal that won't fail and erode the port on the jugs.

2.
The exhaust system needs some of the clamps that connect the headers to the collector. It is p.n. 229-004. Shown on Fig. 44 as #7.

What are my sources and which one is likely to have a reasonable price? I need 5 sets.

3. Is the factory functioning. I don't see an advertisement in the newsletter or in Trade-a-Plane. If there is a phone for them, I'd like to have it.


Any thoughts would be very much appreciated.


Don Jeffery, jeffery@PCEZ.com

 

[lwford]

Don, take the exhaust system and turn it upside down so that all the flanges are on the floor. If the floor is flat all the flanges should be flush against the surface. If not your exhaust needs reworked and this has to be done by a good muffler shop. There is a great one in Ft Lauderdale Fla. Your metal gasket with ring are blow proof gaskets. Make sure your cylinder exhaust flanges are straight and not warped. Insert new studs and you will have a professional job.

 

[N8506R]

Don,

I replaced all my clamps last annual. You can get them from Dawley exhaust in Burlington Wisc. I don't have a phone # handy, but they have a big ad in Trade-a-Plane. They were $20.00 apiece.

Steve Jones
14-19-3A
N8506R
Wdasworth, IL