Installing head on a 2002 Honda CRV and need help

[Brian]

My mom’s 02 Honda CRV overheated on her a few weeks ago and warped the head. My brother took the head off and sent it to a machine shop to have it redone and we got it back yesterday. Right now he has the head back on with a new head gasket, but needs some help with a few things so it’ll probably be easier if I just list them.

1. What is the cylinder head bolt torque and torque sequence?

2. What are the torque specs and how much does he need to torque the head bolts?

3. When torquing the head bolts, what is the correct way/sequence to torque the bolts?

4. Where are the timing marks for the cam and crank?

All of this is from a list he gave me so I hope this makes sense. Any help at all would really be appreciated folks.

Topic

[college man]

see if this helps. 🙂

http://www.justanswer.com/honda/2e5ai-head-bolt-cam-bearing-cap-torque-specs-2000-honda-cr-v-2.html

[Mike]

here you go

Attachments:

• cylinder-head-installation-page-6-42-.pdf

[Brian]

Thanks for the link college man, but her 02 has the 2.4L engine.

[hondaguy453]

The torquing of the head is done in three steps. The first you start at 29 lb./ft. Then torque again with an additional 90 degrees. Then for the last you repeat step 2, so torque an additional 90 degrees. Did you check the head bolts? They might need to be replaced, depending on the mileage because they stretch.

Attachments:

• crankpos.jpg
• campos.jpg
• torqseq.jpg

[Brian]

You guys are life savers! I have one last question just to make sure. The head bolts are new so according to the manual that means to tighten an additional 90 degrees correct? So the first time to 29 lb/ft torque and then an additional 3 times at 90 degrees?

[hondaguy453]

Nope, just need to tighten an additional 90 degrees twice.

[Brian]

I don’t mean to sound rude, but why does the pdf manual that Six6vetteguy posted say to turn an additional 90 degrees (for a total of 3 turns) if using new head bolts?

[hondaguy453]

Haha, no worries. I would be concerned too if it was my car. Go with what his says. We posted from the exact same manual haha. I have no idea why the one I have doesn’t mention that part. Maybe mine isn’t updated :(. Lol, but yeah, I would tighten it a third time!

[Brian]

I just wanted to double check so thanks for letting me know. 🙂

[Mike]

Im doing the same job putting a new head and timing chain on honda crv 2002 any tips and the torque specs for head bolts and cam bolts would be great i saw you guys saying 29 lbs torque then 90 degrees then 90 degrees then one last time of 90 degrees is this right

[Andrew Harris]

Head bolts are 29IBS ft then 90 degrees then on last time at 90 degrees and an additional 90 if using new head bolts.. They make an angle meter that fits onto your ratchet to measure the angle turned. These are what’s called torque to yield bolts and you are actually stretching that bolt when installing. you should use new head bolts.
Attached is the tightening sequence. Make sure you make one full pass at 29, then another at 90 then another 90 on the last pass. again another 90 if using new bolts

Attachments:

• headbolts.gif

[Mike]

Thank you just asking do the cam bolts have a torque

[hondaguy453]

Yes, the cams do have a torque spec and tightening sequence.

[Andrew Harris]

6MM bolts – 106 In Ibs
8MM bolts – 16 Ft Ibs

Attachments:

• cam.gif

[Author]

Replies