dartfreak75
Restore it, Dont part it!
Imo since you haven to pull it anyway. Go ahead drop the oil pan and change the oil pump clean it as much as possible. My vote is also something stuck in the tube screen I'd say sludge has it stopped up
Oldkimmer makes a great point the scraping you heard may have been a bearing and not the flexplate!! In that case pull the mains and inspect the bearings and crank.If it’s scraping it probably has a bad bearing. Kim
Hi everyone. I recently bought a 1972 Plymouth Scamp with a 318 and 904 automatic. The engine/Transmission has to come out because of a broken flex plate.
I have a question. The engine starts up fine with no noises besides the flex plate scraping... ok I didn't run it for long. When the engine first started it has 50 to 60 psi oil pressure. Then about a minute later the oil pressure drops to about 5 psi! Any suggestions on what to look for when I take the engine apart? I did put new oil and filter in it after towing it home and the oil pressure was still the same. Going to try and pull it out this weekend for inspection. Any help would be appreciated.
P.S. Sorry for the dumb question. I have worked on a lot of Chevys but not a lot of Mopars so I am learning.
Thanks
Eric
Very good cheap idea!! I love it!! What I was gonna do is use an old extra intermediate shaft and cut the gear off and then weld a longer piece of tubing on the end with and extension welded to the other endThe quickest, easiest priming rod I have made is to get a 2' or 3' of 5/16" mild steel rod from the hardware store. Then with a machinist's hammer on a vise or other heavy metal block, just hammer one end into a hex shape and cut to desired length for the drill. Works fine. Pull the distributor and intermediate shaft and use the hex shape on that shaft as a pattern.
Does not have to be a perfect hex with the slow speeds of a drill. A typical drill's slow speed will be 500-600 RPM and that will be like 1000-1200 engine RPM.
You have to pull the intermediate shaft out first because it holds the gear that is meshed with the cam to drive the pump and distributor. So just an old distributor will not do. Pulling the intermediate shaft can be a bit tricky and may be eased by putting a loop of string around the gear on the top.
You're welcome... I just had a scrap piece or 5/16" rod, and voila, it worked LOL. Took like 2 minutes with a hammer....
I dont know if I have ever seen hexrod at the local hardware store but that is a good idea also!just get a piece of 5/16 '' hex rod it can be had just about everywhere .
Can't ever recall seeing it around here either. I'll keep my eyes peeled.[/QUO
https://www.metalsdepot.com/cold-finish-steel-products/cold-finish-steel-hexagon
Well there you have it! Lol
I think that I will order the oil priming rod today. Hopefully the engine and transmission will get pulled today so that hopefully will figure out what is wrong.
The inspection cover is missing. Probably had a hole in it when the flex plate broke. Does anyone sell these. Or is a junkyard my best bet?
Why wait 2 days? THAT's the hard way....LOLWhy do yall always insist on doing things the hard way?
Summit Racing® Oil Pump Primers SUM-901013
Very good cheap idea!! I love it!! What I was gonna do is use an old extra intermediate shaft and cut the gear off and then weld a longer piece of tubing on the end with and extension welded to the other end
But i like your idea better for one saves an extension for two saves my extra intermediate shaft. And some guys my not have an extra intermediate shaft to use!! And they are not cheap!! Great idea thanks for sharing.