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JBfixer, Mechanic
Category: Heavy Equipment
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Could you please give me cyl head tourque setting for Cat D7

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Could you please give me cyl head tourque setting for Cat D7 17A , has two different size bolts.?

Submitted: 12 months ago.
Category: Heavy Equipment
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Expert:  Cat Man replied 12 months ago.

Hi. Thanks for using JA! I will try and help you out.

 

Do you have the serial number please?

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Customer: replied 12 months ago.

sorry, machine is 60kms away, only know its last of 17A series

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Expert:  Cat Man replied 12 months ago.

Thanks for the information.

 

Let me gather the info. Be back in a few minutes.

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Expert:  Cat Man replied 12 months ago.

It looks like I am gong to need the serial number.

 

I am showing two different torques for a C9 engine. And another torque for a 3306 engine.

 

Is there any way you can get me the serial number? It doesn;t have to be now. Tomorrow will be fine.

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Customer: replied 12 months ago.

I will try tonight, will get back to you tomorow

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Expert:  Cat Man replied 12 months ago.

Ok, sounds good.

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Customer: replied 12 months ago.

Hi Catman,
Serial No for Cat D7 is 17A539 hope this will do the trick, need head torque and sequence please.
Sorry for delay in getting serial No regards Wally

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Expert:  Cat Man replied 12 months ago.

Thanks for the information.

 

However, this unit is an old one and I cannot find any information on it. Sorry. I am going to OPT out and see if another expert can help. No need to reply back, another expert will be along shortly.

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Expert:  JBfixer replied 12 months ago.

Hello and thank you for using Just Answer.

You will start with the large (7/8) and torque in three steps, starting in the center of the head and working your way out to the ends. First step, torque to 50 ft lbs, 2nd step, 150 ft lbs, last step, 200 ft lbs. Once the large have been torqued, torque the small ones in the same manner EXCEPT, using a lower torque setting. First, 30 ft lbs, 2nd, 60 ft lbs, last, 90 ft lbs.

JBfixer, Mechanic
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