Do I need new/rebuilt heads???

Bad89stang · 09-26-2001, 08:47 PM

I have an 89 LX 5.0 that burns oil when I go to full throttle. I can also hear a ticking noise from the engine. Otherwise engine runs very strong. It is a high mileage car. What could be the cause of this problem? Valves? Valve seals? Rockers? Please help.

09-26-2001, 11:07 PM

'burns oil'??? a motor either burns oil or it does'nt... if your seeing smoke at higher RPM's, I'd say the rings are weak (my motor did it, smoked like hell above 1/2 throttle. but nothing at idle to 1/2)....

a 'ticking' noise to one is a knock to another... could be rod bearings, wrist pins, lifters, etc.....

they all run 'strong' till they go BOOM!!!!!

suggest, taking on a motor building project....

------------------
84 GT,shorty headers, open dual's, bored .060, 10.5" clutch, T5, 89 heads, edelbrock Performer manifold, matched cam, 600 Holley..

PKRWUD · 09-27-2001, 05:37 AM

You need to do a compression test, both wet and dry.

Take care
~Chris

------------------
Retired Moderator
MustangNet

My site: JimPorterRacing

RACECAR spelled backwards is RACECAR

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09-26-2001, 08:47 PM	#1
Bad89stang Registered Member Join Date: Aug 2001 Location: Ft. Worth, TX Posts: 456	Do I need new/rebuilt heads??? I have an 89 LX 5.0 that burns oil when I go to full throttle. I can also hear a ticking noise from the engine. Otherwise engine runs very strong. It is a high mileage car. What could be the cause of this problem? Valves? Valve seals? Rockers? Please help.

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09-26-2001, 11:07 PM	#2
about-2-give-up Guest Posts: n/a	'burns oil'??? a motor either burns oil or it does'nt... if your seeing smoke at higher RPM's, I'd say the rings are weak (my motor did it, smoked like hell above 1/2 throttle. but nothing at idle to 1/2).... a 'ticking' noise to one is a knock to another... could be rod bearings, wrist pins, lifters, etc..... they all run 'strong' till they go BOOM!!!!! suggest, taking on a motor building project.... ------------------ 84 GT,shorty headers, open dual's, bored .060, 10.5" clutch, T5, 89 heads, edelbrock Performer manifold, matched cam, 600 Holley..

09-27-2001, 05:37 AM	#3
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	You need to do a compression test, both wet and dry. Take care ~Chris ------------------ Retired Moderator MustangNet My site: JimPorterRacing RACECAR spelled backwards is RACECAR HEY !!! Are you ASE Certified ??? If you are, ask me about iATN. The best tool you'll ever have, and it's free !!!