Motor is making Noise

[Guest]

Hey Guys,
No one ever mentioned timing I'm just wondering if she jumped time?
Richard D. Hord

P.S. Posted from Washington State! Will be on ship headed to Alaska shortly

[KULTULZ]

No one ever mentioned timing I'm just wondering if she jumped time?

Or possibly a tank of bad fuel?

[yellow98cobra]

problem found

Bent push rod, as bent as this rod is, I can not believe that it was there when I bought the car. I dont think there is any oil thick enough to hide the noise. The noise showed up after I changed the oil, maybe it was allready bending and the few moments it took for the oil to get up there was all that it needed to go completly bad. If anyone knows if there is an oil that would hide this let me know. Thanks, Eric

[KULTULZ]

Bent push rod, as bent as this rod is, I can not believe that it was there when I bought the car. I dont think there is any oil thick enough to hide the noise. The noise showed up after I changed the oil, maybe it was allready bending and the few moments it took for the oil to get up there was all that it needed to go completly bad.

If anyone knows if there is an oil that would hide this let me know.

Thanks, Eric

This is a common failure on FE and MEL engines. The bent pushrod(s) need to be replaced. Note there are differing lengths released for service, STD., .030 US and .030 OS (for tappet adjustment).

Engine oil is designed to lubricate, cleanse and cool, not hide defective engine noise(s).

- http://www.ford-trucks.com/article/i...le_Secret.html

[yellow98cobra]

I wasnt looking to hide the noise.
I was wondering if the guy I got from had done something to it. I would not have bought if was makeing the noise it is now. I have it in the shop, Im going to replace the lifters while it is apart.

This is a common failure on FE and MEL engines. The bent pushrod(s) need to be replaced. Note there are differing lengths released for service, STD., .030 US and .030 OS (for tappet adjustment).

Engine oil is designed to lubricate, cleanse and cool, not hide defective engine noise(s).

- http://www.ford-trucks.com/article/i...le_Secret.html

[KULTULZ]

There are several ways to hide engine noise(s). If weak lifters, a solvent may silence them.

Have they diagnosed the noise as weak lifters? They are expensive to replace as you need to remove the intake. I would be more concerned with worn rockers and shafts.

There is a bleed-down procedure to perform to determine a weak lifter(s). Did you read the referring URL?

[JohnG]

I'm confused. There is a bent pushrod. Why not just replace the bad pushrod, check out the valve train and see how the car does? Why replace the lifters?

The intake manifold is not only a chore to work with (weighs a ton) but the choice and installation of the associated gaskets requires patience and care.

In short, until you find out it's broke, don't work on it?

[lawyercalif]

I'm confused. There is a bent pushrod. Why not just replace the bad pushrod, check out the valve train and see how the car does? Why replace the lifters?

The intake manifold is not only a chore to work with (weighs a ton) but the choice and installation of the associated gaskets requires patience and care.

In short, until you find out it's broke, don't work on it?

I agree removing the intake and replacing it is a real pain. Getting it back on without oil leaks from the front or rear takes skill, patience and luck. I just went through this and we had to redo it twice to keep it from leaking. If it were me I would just replace the pushrod.

[partsetal]

There is a tool to excract lifters without removing the intake. I've used it to remove lifters that were damaged by bent pushrods. In the three episodes of bent pushrods, the problem was stuck valves. These were parts car motors that I was starting for evaluation. You can replace the bent pushrod, but if you don't find the cause, you will surely bend the replacement.
Rust or carbon was the reason for the stuck valves. I was able to free up several, but there were some that i could not.
Carl

[JohnG]

So you're saying the bent pushrod is a symptom of another problem?

In that case, what methods would you use to track down the cause? Observe the valve train in action as you turn it over by hand? Compression test?

Do we know what kind of history this motor has? How oid since rebuild? Oil consumption? Anything?

I am mainly a motorcycle guy. If someone bent a pushrod on a bike it was due to over-revving or a missed shift. Both of those things have little to do with an automatic tranny sedate TBird.