The 75 i bought here locally had some strange noises coming out of the engine bay. I talked to a mechanic friend and he told me that most likely my muffler bearings are shot. He said he doesnt know where they are on c3's. He told me to look around the car so i did. He said i may have to pull the engine. I did that too. If anyone can point them out in the following pictures i would greatly appreciate it.

Car as it sits in the garage-


i cant see them in the engine bay???


My mechanic friend said that some older GMs have the muffler bearing housings in the interior... Cant find it here either...


Not in the front wheel well, right?



Rear???










And what would be a good transmission for a mildly built 502?

 

try extending your driveshaft and mount the one end directly to the flywheel....that would eliminate the trans and save weight....good for a better fuel mileage car.........

 

Your doing a good job at looking for the muffler bearings. I am sure they have fallen out by now and you could start cleaning the pieces and putting it back together.
Nice job.

 

as soon as all my packages from various vendors come in...

Note- while on my hunt for muffler bearings i found a checkbook from 1980 under my driver's seat. lol

 

You'll find them bro, just keep looking
good luck on the rebirth of a C-3, they are worth it

 

Don't forget that you're supposed to change your blinker fluid whenever you replace the muffler bearings. Most people forget this important maintenance item!

 

 

...ONLY the pre-unleaded cars without the catalytic converters had muffler bearings-'75 didn't have 'em.

 

I think you have to remove the birdcage to get to them.

 

Sometimes they are under the flux capacitor or more rarely under the tweeter valve. Often it takes a left handed screwdriver for removal.Once you get them out be sure and lube with some elbow grease.

 

try looking under the back seat......the split back seat.....

u should use a frame stretcher also...... u can rent one from walmart

b

 

Look for this:



It is in the trunk. Take it loose, and the bearings are behind there.

 

The thing that set '75's apart from earlier years was that it was the first year with no blinker fluid BUT the first year for the computer-controlled hydrolator valve.

Noobs...

 

they are between the body and the frame ...you just haven't taken enough apart yet...keep going

 

I'm not sure if its true or not, but I been told the muffler bearing is prone to wearing and making noise unless you use high frequency grease. It should be available at most parts store, but you have to ask the person working the parts counter.

 

Available exclusively from Kalecoauto

http://www.kalecoauto.com/general.htm


http://www.kalecoauto.com/

 

Great threads I wonder if they have a branch in Southeast Asia?

 

I can see from you pictures that you haven't changed your pfitzenfelter valve. Be sure to do that while it's apart, or you will never get it to fit correctly!

 

You may need to add this to the list of parts needed to get back on the road. I also found
Enjoy all that newfound power.

 

Hey, Those muffler bearings that you are looking for are usually located right next to the henway, trouble is in finding the henway as they move around alll the time, only way to stop 'em from moving is to hit a good shot with a herbielever,,,,,,,,,,,,,Peace,,,,Craig