Skip the auto shop - Our mechanics make house calls

Q: Replacing Cylinder Head

asked by on

Hello I recently bought a nissan altima 2010 very cheap because it has a blown head gasket, I'm going end up replacing the old water pump, thermostat and a cylinder head with new ones , the problem i'm having trouble finding the cylinder head torque sequence and torque, i look everywhere and didn't find much on altima's the only thing i could find was one pdf and im not sure if it correct. this is the engine, page 64 is the cylinder head http://www.nicoclub.com/FSM/Altima/2010/EM.pdf

To me the pdf looks wrong because Torque seem to be too much to start on a high ft-lb torquing for the cylderhead unless i'm wrong?

Step a : 98.1 N·m (10 kg-m, 72 ft-lb) < looks too high for beginning torque Step b : Loosen to 0 N·m in the reverse order of tightening. <Im confuse what to do here Step c : 39.2 N·m (4.0 kg-m, 29 ft-lb) Step d : 75° clockw

My car has 11700 miles.
My car has an automatic transmission.

This is correct. The first torque step is to seat the head. Then loosen and tighten to 29 ftlb, then you have to tighten each bolt 75 degrees and then another 75 degrees. The bolts are torque to yield, which is why you should only use new ones and lightly oil the threads before putting them in. Make sure the bolt holes are free of oil and coolant, as tightening a bolt into a hold full of coolant can crack the block.

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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Plugs coming out black but not oilly

This is a sign of a rich fueling condition. This can happen for many different reasons, such as a dirty or failing mass air flow sensor, leaking fuel injectors, a failing catalytic converter or a bad O2 sensor. All of...

Q: Do I need to put the engine out of the car to replaced the water pump, and should I replace the timing chain? 2010 Lincoln MKX

Hi there - unfortunately, the high repair estimate for a water pump for this engine is legitimate. The water pump is driven by the timing chain, which means MUCH more disassembly is required, with all the headaches, and special tools...

Q: Steering wheel locked

The issue may be within the steering column. It can be the ignition switch not releasing the steering lock mechanism, or it can be the steering lock mechanism itself. There can be a broken or out of adjustment component in...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...