- Joined
- Apr 13, 2009
- Messages
- 13,957
- Reaction score
- 5,102
- Points
- 113
- Location
- Calgary, Canada
- Vehicle Year
- '91, '80, '06
- Make / Model
- Ford, GMC,Dodge
- Engine Size
- 4.0,4.0,5.7
- Transmission
- Manual
- 2WD / 4WD
- 4WD
I was pulling my loaded work trailer up a slight hill and heard two pops, then the truck lost power and ran rough. Got home and pulled plugs. Two had signs of gas and all were due replacement. Good, hopefully bad plugs is the problem. Decided to do a compression test, started on the drivers side. Getting between 125 and 140 psi all the way until the second last cylinder [#3] I got 0, nada, no compression...damn. Pulled the valve cover and found one intake pushrod bent like a hockey stick. Looked a little closer and the exhaust pushrod is missing...crap. And its not laying up top, so that means its under the intake. Went fishing with a magnet and got lucky, got the pushrod out the first try. It's also bent like a hockey stick.
So....what would cause both pushrods on the same cylinder to bend? The rad fluid is where it should be. The sparkplug on that cylinder had no signs of gas or any other fluid.
This motors head casting indicates it is a 73 build. The block is 1977. I have a spare 1970 460 that I'm going to rob a couple rods from, hopefully they are the same length.
Any input appreciated.
Thanks.
So....what would cause both pushrods on the same cylinder to bend? The rad fluid is where it should be. The sparkplug on that cylinder had no signs of gas or any other fluid.
This motors head casting indicates it is a 73 build. The block is 1977. I have a spare 1970 460 that I'm going to rob a couple rods from, hopefully they are the same length.
Any input appreciated.
Thanks.