 Retorque 2.0 heads? Pro and Cons? |
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| 914rrr |
 Mar 27 2009, 11:36 AM
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#1
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Senior Member  Group: Members Posts: 1,835 Joined: 1-July 03 From: Knoxville, TN Member No.: 874 Region Association: South East States  |
I am in the process of freshening and detailing my 2.0 engine. While I have the engine sheet metal off, is it a good idea to retorque the heads? Are there any pros or cons to doing this?
Rob |
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| type47 |
Mar 27 2009, 02:02 PM
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#2
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Viermeister Group: Members Posts: 4,254 Joined: 7-August 03 From: Vienna, VA Member No.: 994 Region Association: MidAtlantic Region |
Engine is out of the car? I would think there is no harm in retorquing, I guess, theoretically, if the engine hasn't been run, that the torque should be the same as when done before. I would expect the torque to perhaps be different after the motor has gone through some heat cycles but it would be a real pain to retorque the heads then with the motor in since the upper head nuts would be hidden by the engine sheet metal.
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| So.Cal.914 |
Mar 27 2009, 02:55 PM
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#3
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"...And it has a front trunk too." Group: Members Posts: 6,588 Joined: 15-February 04 From: Low Desert, CA./ Hills of N.J. Member No.: 1,658 Region Association: None |
If it's out why not check the torque on them. Follow the torque pattern in your manual. (IMG:style_emoticons/default/smile.gif)
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| yeahmag |
Mar 27 2009, 05:32 PM
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#4
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Advanced Member Group: Members Posts: 2,424 Joined: 18-April 05 From: Pasadena, CA Member No.: 3,946 Region Association: Southern California 
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I typically only do this when the motor is brand spanking new. You get a "carbon" seal around the chamber and run the risk of upsetting that. I could be insane though...
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| charliew |
Mar 27 2009, 11:39 PM
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#5
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Advanced Member Group: Members Posts: 2,363 Joined: 31-July 07 From: Crawford, TX. Member No.: 7,958 |
I took a 72 bug away from my son in 1986 because he kept drinking too much. He asked for it back last june. He's now 40. It has about 50 k on the original motor. We repainted all the tin, replaced the clutch and pressure plate and bearing so decided to do the seal and check the endplay. It was ok. I had a 009 dist on it in 86 but decided to try a vaccum advance one this time.
I also put a new oilpump/filter on it with new pushrod tubes. While we were at it we checked the head torque and it was pretty loose. More than I expected it to be. We had driven the car before we tore it apart to redo it and it ran ok. |
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| yeahmag |
Mar 27 2009, 11:43 PM
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#6
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Advanced Member Group: Members Posts: 2,424 Joined: 18-April 05 From: Pasadena, CA Member No.: 3,946 Region Association: Southern California
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Might check for the head studs pulling out. Type I cases have been known for that. I personally haven't run across one that needed re-torqued without a reason, but I have a fairly limited cross section...
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| sean_v8_914 |
Mar 28 2009, 12:02 AM
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#7
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Chingon 601 Group: Members Posts: 4,011 Joined: 1-February 05 From: San Diego Member No.: 3,541 |
you can not retorque rusty nuts on rusty stud. you can only try.
if it aint broke... |
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| LvSteveH |
Mar 28 2009, 04:07 PM
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#8
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I put the Poor in Porsche Group: Members Posts: 1,080 Joined: 22-April 03 From: Las Vegas, Nevada Member No.: 600 |
I broke a stud in an othewise healthy 3.6L a few years ago because I retorqued the head studs instead of just checking that they weren't broken. Only cost me about $3000 (IMG:style_emoticons/default/biggrin.gif)
Kind of a freak thing really. As long as everything is clean with no corrosion issues I wouldn't be afraid to check them. |
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