Skip the auto shop - Our mechanics make house calls

Q: Replaced a ruined cylinder head with a used cylinder head

asked by on

I had a spark plug blow out. The previous owner had already heli coiled the head, and that blew out, I replaced the passenger side head with a used one. With the timing chains,guides,and tensioners in place and the key way (on the crankshaft)in the 12:00 o'clock position I manually rotate the engine clockwise until it reaches the 10 o'clock then it stops. From there I rotate counter clockwise until it gets to the 10 o'clock then stops. What would cause this?

My car has 160000 miles.
My car has an automatic transmission.

A: From what you've described, it sounds l...

From what you've described, it sounds like you have not put the camshafts in the correct positions. You need to use special tools to hold the camshafts in the correct position before tightening the cam gear. Once the first one is done, then you go to the other head and do the same thing. This should fix the problem you're having. If you need some assistance with this, consider YourMechanic, as a certified technician can come to your home or office to service your vehicle.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: can overfilling the oil in a car cause oil on the spark plugs?

The most common reason that you have oil on the spark plugs after you remove the coils is the valve gasket is leaking oil into spark plug wells. You will need to clean out the oil before replacing the spark...

Q: Check engine light still on after repair. 2006 Infiniti G35

Hello. If the Check Engine Light remained on after the battery was plugged in, then it may be possible that the issue is with the wiring. Faulty wiring or a bad connector to the cam position sensor keeping the Check...

Q: oil is entering through throttle body and smoking from exhaust after pcv valve

Hello there, a few different faults can cause oil to be burned and white smoke to be seen. The most common would be excessive blow by, an intake leak, failed PCV valve or valve stem seal. A qualified technician...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.