New engine and ticking/churping.
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New User
Joined: Oct 2003
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New engine and ticking/churping.
We had a new marshall engine put in, a 390. We have been working on pinpointing the ticking for about a month and a half. Today we took off the belts and started it up to see if it would go away. Then we would know it was not the engine. It did not go away though.
My main question is, will ticking/chirping cause problems to a engine? I know if your engine is pinging it is not going to land very long.
Is it possible we are to used to newer engines that don't make any noise and these old engines with solid lifters make this noise and there is nothing I can do about it?
With the belts hooked up you can hear the ticking at idle. If you rev it up in park you cannot hear the ticking anymore, because the noise from the fan and everything else overpowers it.
Any idea's? Should we take it someone and tell them this needs to be fixed. or just forget about it?
My main question is, will ticking/chirping cause problems to a engine? I know if your engine is pinging it is not going to land very long.
Is it possible we are to used to newer engines that don't make any noise and these old engines with solid lifters make this noise and there is nothing I can do about it?
With the belts hooked up you can hear the ticking at idle. If you rev it up in park you cannot hear the ticking anymore, because the noise from the fan and everything else overpowers it.
Any idea's? Should we take it someone and tell them this needs to be fixed. or just forget about it?
Post Fiend
Joined: Feb 2001
Posts: 6,624
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From: Missouri
If you have solid lifters and you don't hear ticking you have problems. The chirping is not right. Did you modify the oiling system to accomodate your solids or did you have an early block already made for them.
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New User
Joined: Oct 2003
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Im not really sure. The engine was installed by someone else. Im slowly trying to start to do everything myself. Seems there is not such a thing as a good mechanic anymore.
Ill have to find out if it even has solid lifters. I just assumed it did because it was from a 74 ford.
Ill have to find out if it even has solid lifters. I just assumed it did because it was from a 74 ford.
Elder User
Joined: Jun 2003
Posts: 886
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From: Houston/Hope BC
My first guess would be valve train. Use a mechanic stethescope or do like me and cup the dull end (sorry, I have no idea who I am talking to) of a big long screwdriver to your ear and probe around with it to isolate the sound. If it seems like it is coming from a valve cover, pull that one. This is kinda crude and messy, but I have pushed on an operating valve one at a time with a red rag (push rod side) to see if it shuts up. That is the one to adjust.
Another idea that might give you ideas of where to look is to observe the frequency of the sound in relation to the stobe of a timing light. It might be something as simple as the fuel pump. GL
Another idea that might give you ideas of where to look is to observe the frequency of the sound in relation to the stobe of a timing light. It might be something as simple as the fuel pump. GL
