lanny haff Posted March 31, 2011 Report Posted March 31, 2011 Maybe some one can help. I drove my 33 ply for the 1st time yesterday + it over heated. I had my electric fan running backwards. I put new anti-freeze in it + started it. It started but it has noise when it 1st starts like an engine that runs on after you cut the ignition.[ dieseling]As soon as it clears + runs above an idle the noise goes away + it runs good. Is it possible I blew a head gasket + its getting coolant in acylinder + hydro locking? My car is not being user friendly! thanks Lanny Quote
moose Posted March 31, 2011 Report Posted March 31, 2011 Maybe the starter is staying engaged? I used to have a solenoid that would stick sometimes. Just a thought. Quote
lanny haff Posted March 31, 2011 Author Report Posted March 31, 2011 No Moose its not that kind of noise. It sounds like pistons. Thanks Quote
Plymouthy Adams Posted March 31, 2011 Report Posted March 31, 2011 whats your oil pressure.? can you discern if the noise is that of fluttering mains on start up when the oil pressure at zero..do you have pressure when the noise is heard and if so what is the level and when you rev it up what is the oil pressure when the noise subsides... the determine possible head gasket probs..which could also be noise from partical water lock on the piston you will need to pull the plugs, inspect for wet conditiona nd glycol present then perform an compression test.. if the leak is this bad..you should see a spray of water when you turn the engine over with the plugs out.. Quote
lanny haff Posted March 31, 2011 Author Report Posted March 31, 2011 Tim oil pressure is 40 psi at idle 55psi at higher rpms. It didnt make noise until I started it after it overheated. Theres no water in oil. thanks Quote
Merle Coggins Posted March 31, 2011 Report Posted March 31, 2011 Do you get white smoke out the exhause when started up, and does the exhaust have a sweet smell. Those are 2 quick tells that you have coolant getting into your cylinders. A lot of coolant in the cylinder will cause a hydrostatic lock, but if it's not enough to lock it up it could cause a knock until it exits the cylinder. Merle Quote
Don Coatney Posted March 31, 2011 Report Posted March 31, 2011 You need to do the tests that Tim recommended. Everything else is guesswork. Quote
greg g Posted March 31, 2011 Report Posted March 31, 2011 Do a compression check. These head gaskets have a tendency for them to fail between the pairs of cylinders. Usually this area will not involve a swapping of coolant or oil, but it will allow leaking of compression between the cylinder pairs. The noise you hear if it is not the typical metallic tap or clunk of a rod o main bearing, is probably compression pressure travelling through the faild gasket. With the engine running at idle, pull spark plug wires (wint well insulated pliers) one at a time. This may assist you in finding the affected cylinder/s. As the sound may go away when the cylinder is not fired, there by lessening the pressure of a firing cylinder. If you can't isolate, then do a normal compression test. A vacuum gauge will also tell you the condition of the head gasket, you will probably have a very busy needle. Quote
Reg Evans Posted March 31, 2011 Report Posted March 31, 2011 Can you post some photos of your 33 Plymouth. My first car in 66 was a 33 plym. Quote
lanny haff Posted April 1, 2011 Author Report Posted April 1, 2011 Reg Evans I'll try to post some pictures Sat. My grand daughter will probably be at my house + she knows how do to that. I'm computer illerterate. Lanny Quote
aero3113 Posted April 1, 2011 Report Posted April 1, 2011 Reg Evans I'll try to post some pictures Sat. My grand daughter will probably be at my house + she knows how do to that. I'm computer illerterate.Lanny See if she can take a video of the sound also? Maybe we can determin where it is coming from if we hear it. Quote
Jim Saraceno Posted April 1, 2011 Report Posted April 1, 2011 Here are some engine noise troubleshooting tips, however none of them sound like what you are describing. Maybe these will help eliminate the mechanical possibilities. Quote
lanny haff Posted April 2, 2011 Author Report Posted April 2, 2011 Heres some pictures of the old gal 1933plymouth PD coupe I need to get my noise problem taken care of. the car was dependable with the chevy motor but mopars need to have mopar motors in them! Quote
lanny haff Posted April 2, 2011 Author Report Posted April 2, 2011 Well I found my noise, the torque converter bolts were loose. How embarassing. Now I just to get my cverheating solved + I'm off to Gainesville Sat. for billet proof. Thanks for all you guys help Lanny Quote
lanny haff Posted April 2, 2011 Author Report Posted April 2, 2011 yeah about 3 minutes thank god nothing major Quote
greg g Posted April 2, 2011 Report Posted April 2, 2011 Thanks for the update, good luck on the trip. Quote
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