70Challenger440

Hi All -

suggestions welcome as the next step is to drop the oil pan.

I have a 70 Challenger w/440. New noise! When running, I hear a constant pffft, pffft, pffft.

thoughts?

thx

Iowan

Don’t overlook the exhaust…I’ve seen exhaust leaks, make the damnedest noises.

70Challenger440

Thank you for your insight. Any ideas about sound coming from engine? It’s right on top at front.

Dodge 440

Kuvasz101

Fuel pump makes that sound and is located in the front right of the motor. Mine was making noise but it was a knocking/tapping sound. I changed it with a new one and it was 10 times louder. I put the old one back in.

Iowan

It’s not uncommon for a big block to need a fuel pump pushrod, they rarely get replaced with a engine rebuild but after fifty plus years they tend to get shorter…

RacerHog

Only time I pull the pan is when it goes Chitty Chitty Bang Bang,,,,, But Pffft Pffft Pffft... Not going to pull it for that.
Now if you can't find the source, Pull the whole engine and put it on a run stand and determine the problem.
Hope its something simple, Check for a loose Spark Plug....

RacerHog

Hahahahaahahaha, I know something else that gets shorter after 50 years, and gets covered with a tool shed.... Cheers...