Rebuilt engine ticking

the68stangdude · October 6th, 2008, 11:16 AM

So I just had my 289 rebuilt about a year ago. Over the weekend I took my mustang for a drive. The engine only has about a 100 miles on it. While i was driving about 50mph all the sudden this ticking noise started. I started loosing power and it was running terrible. I pulled off the road and tried to figure out what it was. It sounds to me like its at the top of the engine. The thing I cant really figure out is that when you speed the engine up it doesnt speed the ticking noise up. I was wondering if someone knows what it is. I was thinking it is either a valve, rocker or pushrod.

white_fang · October 6th, 2008, 11:22 AM

it could be that but also check your injectors injectors make a ticking noise when they are bad, if its efi check the intake , check the valve spring,

oh it might also take a while for the valves to work in bc you might have sticky valves your you have to redo the heads

and did u do it yourself?

the68stangdude · October 6th, 2008, 07:27 PM

I had a local rebuild shop redo the engine for me. I really don't know too much about engines. Im not sure how tough it will be for me to fix whatever the problem is, but i hope it is not too bad.

bossman69 · October 6th, 2008, 08:10 PM

I would say if it has a limited warranty then take it back to the shop and let them look at it.

69fastback · October 6th, 2008, 10:34 PM

Injectors? Is it a fuel injected engine?

If it doesn't speed up with RPMs, it's unlikely it's anything in the valvetrain.

white_fang · October 7th, 2008, 09:29 AM

take it back and have them fix it for free

speedfreak · October 7th, 2008, 11:40 PM

The ticking and loss of power sounds as though a rocker may have come loose or a valve spring is weak. I have gone through these problems before so you will need to take it to the shop that rebuilt the engine or take the valve cover off and check it out.

the68stangdude · October 16th, 2008, 11:25 AM

I found what the ticking noise was. A rocker broke in half. I was wondering has anyone else had this problem? I have a friend that has a 67 with a 289 and he said that he broke 4 rocker armsand then finially put roller rockers on. The only thing different about my engine is that i put a cam in it. Could that be the reason that the rocker just snapped? O also the engine shop did not even know what was wrong with it by listening to it. It was a very strange sound so thats why it was hard to explain.

460brevill · October 16th, 2008, 11:27 AM

most likely milage on old rockers,.

speedfreak · October 17th, 2008, 12:25 PM

Originally Posted by the68stangdude

I found what the ticking noise was. A rocker broke in half. I was wondering has anyone else had this problem? I have a friend that has a 67 with a 289 and he said that he broke 4 rocker armsand then finially put roller rockers on. The only thing different about my engine is that i put a cam in it. Could that be the reason that the rocker just snapped? O also the engine shop did not even know what was wrong with it by listening to it. It was a very strange sound so thats why it was hard to explain.

It could be that it was just a defective rocker arm. Did you change anything on the heads for the rocker arms? When i switched the push in studs to screw in studs for the rocker arms, I had valve spring problems in that i kept breaking them. What we found out later is that we need to mill down the heads slightly to accommodate the screw in studs. I never damaged my engine but we didnt know at the time.

speedfreak · October 17th, 2008, 12:29 PM

Well I was correct when thinking it was a rocker arm or valve spring. When you have a power loss like that and a ticking in the top of the motor always look there first. If a valve spring is weak, the only thing you will notice is oil going everywhere. If it ever happens again, pull over immediately, and tow it home.

707Stang · October 17th, 2008, 12:39 PM

Originally Posted by the68stangdude

I found what the ticking noise was. A rocker broke in half. I was wondering has anyone else had this problem? I have a friend that has a 67 with a 289 and he said that he broke 4 rocker armsand then finially put roller rockers on. The only thing different about my engine is that i put a cam in it. Could that be the reason that the rocker just snapped? O also the engine shop did not even know what was wrong with it by listening to it. It was a very strange sound so thats why it was hard to explain.

great info! sucks about your car but glad i now know!

October 6th, 2008, 11:16 AM	#1
the68stangdude Newbie Join Date: Feb 2007 Posts: 33 iTrader: 0 reviews	Rebuilt engine ticking So I just had my 289 rebuilt about a year ago. Over the weekend I took my mustang for a drive. The engine only has about a 100 miles on it. While i was driving about 50mph all the sudden this ticking noise started. I started loosing power and it was running terrible. I pulled off the road and tried to figure out what it was. It sounds to me like its at the top of the engine. The thing I cant really figure out is that when you speed the engine up it doesnt speed the ticking noise up. I was wondering if someone knows what it is. I was thinking it is either a valve, rocker or pushrod.

October 6th, 2008, 11:22 AM	#2
white_fang Banned 1996,mustang around 5's 0-60 Join Date: Apr 2008 Location: maybee Posts: 747 iTrader: 0 reviews	it could be that but also check your injectors injectors make a ticking noise when they are bad, if its efi check the intake , check the valve spring, oh it might also take a while for the valves to work in bc you might have sticky valves your you have to redo the heads and did u do it yourself? __________________ bbk cai 8.8 373 dual exuast ported heads bored 30 over forge crank aggressive cam minor shit also [SIZE="4"][COLOR="Red"]crew member #1 that loves mods and administrators[/COLOR][/SIZE]

October 6th, 2008, 10:34 PM	#5
69fastback Premium Member 1969 Mustang Mach 1 6.824@101.61 Join Date: Aug 2006 Location: Oklahoma jackass, get to driving Posts: 5,571 iTrader: 0 reviews	Injectors? Is it a fuel injected engine? If it doesn't speed up with RPMs, it's unlikely it's anything in the valvetrain. __________________ ./___ _ ____ ___ \. ( ]]] _ _ O _ _ [[[ ) \_ o _ _____ _ o _/ \|___\| ......... \|___\| http://www.youtube.com/watch?v=HyYU3...e_gdata_player

October 7th, 2008, 09:29 AM	#6
white_fang Banned 1996,mustang around 5's 0-60 Join Date: Apr 2008 Location: maybee Posts: 747 iTrader: 0 reviews	take it back and have them fix it for free __________________ bbk cai 8.8 373 dual exuast ported heads bored 30 over forge crank aggressive cam minor shit also [SIZE="4"][COLOR="Red"]crew member #1 that loves mods and administrators[/COLOR][/SIZE]

October 7th, 2008, 11:40 PM	#7
speedfreak Newbie 2004 3.9L V6 15.1 Join Date: Oct 2008 Location: West Palm Beach Posts: 43 iTrader: 0 reviews	The ticking and loss of power sounds as though a rocker may have come loose or a valve spring is weak. I have gone through these problems before so you will need to take it to the shop that rebuilt the engine or take the valve cover off and check it out. __________________ Race what ya Brought Last edited by speedfreak; October 7th, 2008 at 11:45 PM.

October 6th, 2008, 07:27 PM	#3
the68stangdude Newbie Join Date: Feb 2007 Posts: 33 iTrader: 0 reviews	I had a local rebuild shop redo the engine for me. I really don't know too much about engines. Im not sure how tough it will be for me to fix whatever the problem is, but i hope it is not too bad.

October 6th, 2008, 08:10 PM	#4
bossman69 Regular 1969 Mustang N/A Join Date: Dec 2007 Location: Dallas Posts: 60 iTrader: 0 reviews	I would say if it has a limited warranty then take it back to the shop and let them look at it.

October 16th, 2008, 11:25 AM	#8
the68stangdude Newbie Join Date: Feb 2007 Posts: 33 iTrader: 0 reviews	I found what the ticking noise was. A rocker broke in half. I was wondering has anyone else had this problem? I have a friend that has a 67 with a 289 and he said that he broke 4 rocker armsand then finially put roller rockers on. The only thing different about my engine is that i put a cam in it. Could that be the reason that the rocker just snapped? O also the engine shop did not even know what was wrong with it by listening to it. It was a very strange sound so thats why it was hard to explain. Last edited by the68stangdude; October 16th, 2008 at 11:27 AM.

October 16th, 2008, 11:27 AM	#9
460brevill Hardcore Enthusiast Join Date: Apr 2007 Location: Farmville VA Posts: 1,327 iTrader: 0 reviews	most likely milage on old rockers,. __________________ i sixing 200 six with 300 hp.

October 17th, 2008, 12:29 PM	#11
speedfreak Newbie 2004 3.9L V6 15.1 Join Date: Oct 2008 Location: West Palm Beach Posts: 43 iTrader: 0 reviews	Well I was correct when thinking it was a rocker arm or valve spring. When you have a power loss like that and a ticking in the top of the motor always look there first. If a valve spring is weak, the only thing you will notice is oil going everywhere. If it ever happens again, pull over immediately, and tow it home. __________________ Race what ya Brought

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