Exhaust Chuff

[NTOLERANCE]

How many miles on the engine?

According to the previous owner 203,000.

Ive never seen any 200000 mile engine still have cross hatch on the cylinder walls but this one does

 

[89Laredo]

my old jeep 4.0 with 280 K still had barely visible cross hatch.

 

[HammerDown]

According to the previous owner 203,000.

Ive never seen any 200000 mile engine still have cross hatch on the cylinder walls but this one does

The reason I ask, I've read where the exhaust valves get sloppy at different mileages over 200k. My engine has 205 on it. Few years back when replacing the valve cover gaskets I had my hand on each valve spring but couldn't get any movment...suppose it's only a matter of time.
It would appear the valves are the weak link to our engines.

 

[freebird01]

hammer.... in the engines i have tore down... to see the valve movement you need to have the springs removed and the valve out of the head about 1/2".

ill see if i have a link. i posted a video awhile back that shows a worn out valve guide...

 

[freebird01]

http://s7.photobucket.com/user/freebird01/media/87%20Crew%20Cab/2013-09-01_15-05-17_446_zpsbbecefd3.mp4.html

take a look at this

 

[HammerDown]

http://s7.photobucket.com/user/freebird01/media/87%20Crew%20Cab/2013-09-01_15-05-17_446_zpsbbecefd3.mp4.html

take a look at this

That is pretty extreme!

 

[idi_econoline]

Ive never seen any 200000 mile engine still have cross hatch on the cylinder walls but this one does

My lower end has just over 200K, NTOLERANCE, and it did show us crosshatching last year, when the heads were off.

 

[wildman7798]

According to the previous owner 203,000.

Ive never seen any 200000 mile engine still have cross hatch on the cylinder walls but this one does

From about 1984 to late 90's all the 5.0 and 5.8 Fords we opened up (about the time of the SEFI, HO, roller cams) all still showed cross hatch at 180k to 250k. This would be probably 8 to 10 engines. I read back in the day that Ford was using higher nickle in the blocks or slightly different composition as well as different rings and many of those engines got forged pistons. I am sure they carried that into other parts of the product lines. I will say it is a little mind numbing to pull the heads on an engine with 200k miles and still see crosshatch. Most of the time we could roll in bearings, oil pump chain and gears and off to the derby with them. Never blew one up. Built Ford tough.

 

[NTOLERANCE]

Is there a better/best head gasket to use?

 

[freebird01]

felpro or victor reinz....

 

[idi_econoline]

felpro or victor reinz....

Yupyup! No time to go cheap!

 

[NTOLERANCE]

Are they multi layer or steel shim

 

[idi_econoline]

Multi-layer, on the Victor Reinz: http://www.rockauto.com/catalog/moreinfo.php?pk=2647700&cc=1117561

Design sure looked better than the original steel ones I took off!