Go Back   Honda-Tech > Honda and Acura Model-Specific Technical Forums > Honda Civic/Del Sol (1992 - 2000)
Sign in using an external account
Register Forgot Password?
Search


Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
Old 04-18-2011, 01:54 PM   #1
Honda-Tech Member
 
hotdoggies's Avatar
 
Join Date: Feb 2005
Location: Ardmore, Ok
Posts: 723
iTrader Rating: (0)
Default harmonic balancer wobbling?

So it was a warm day today and i turn my a/c on to cool down. The compressor i noticed started to make a screeching sound so i turn it off after about 5 min. Upon arriving at my destination I here a puffing/ticking noise coming from the engine. From what i can tell the Crank pulley is wobbling pretty bad. Can this be caused from the compressor going bad and putting to much stress on the pulley? It is really worrying me that it is the harmonic balancer pulley...
__________________
00 Civic Si 168.1 hp 115ft lbs.
aem cai,itr throttle body, apexi world sport, dc 4-2-1, no cat, tuned apex'i vafc, ctr pistons, comp stg1 clutch, Skunk2 stg 1 cams. Tuned by jarret at velocity perf. SOLD!

Last edited by hotdoggies; 04-18-2011 at 02:13 PM.
hotdoggies is offline   Reply With Quote
Old 04-18-2011, 04:54 PM   #2
Resident Gearhead
 
BryanM.'s Avatar
 
Join Date: Aug 2007
Location: Maine, USA
Posts: 5,460
iTrader Rating: (1)
Default Re: harmonic balancer wobbling?

Check if the crank pulley bolt is loose.

Keep using it like that and the key ways of the crank and crank pulley and the key itself could get screwed up.



BryanM. is offline   Reply With Quote
Old 04-19-2011, 04:39 AM   #3
Honda-Tech Member
 
Join Date: Dec 2010
Posts: 125
iTrader Rating: (0)
Default Re: harmonic balancer wobbling?

There is NO WAY your A/C compressor could put enough strain on your crank pulley to damage it. Why? Even if your compressor seized and the clutch held, the belt would slip, melt, and then break. It would feel like all hell had broken loose for a second, and then the belt would break with a loud bang, you would feel like everything was OK.

The harmonic balancer is bolted directly to the crankshaft with a key, tightened with a quite large bolt to ~160 ft lbs. It takes about 300 ft lbs to break the bolt loose, and either the harmonic balancer has to be counterheld, or the flywheel does. (Or the engine could be hydrolocked, I suppose.)

If your harmonic balancer is wobbling, something went seriously wrong and you should probably investigate.
Sonia's Driver is offline   Reply With Quote
Old 04-19-2011, 05:28 AM   #4
Honda-Tech Member
 
Join Date: Jul 2009
Posts: 465
iTrader Rating: (0)
Default Re: harmonic balancer wobbling?

I just had the same thing happen to me on my 93 del Sol.
It turned out that the key that holds the main crank pulley in place broke and sheared the tines inside the crank pulley. It happened just when I turned on my AC too. How about that. I recently had work done and replaced the main crank seals and apparently they reused the old key when they replaced the pulley. The cure was buying a new crank pulley and new key. Also there was a small nick on the end of the crank but a little JB weld on that spot took care of that. The pulley cost about $160 (go OEM). The labor involves messing with the main crank nut.
delsolintegra is offline   Reply With Quote
Old 04-19-2011, 06:13 AM   #5
Honda-Tech Member
 
Join Date: Jan 2010
Location: Central Pa
Posts: 540
iTrader Rating: (0)
Default Re: harmonic balancer wobbling?

Sounds like a loose or broken crank pulley bolt,you need to check it out ASAP.
__________________
You might be a King or a little street sweeper but sooner or later you dance with the reaper.
Jockone is offline   Reply With Quote
Old 04-19-2011, 07:11 AM   #6
Honda-Tech Member
 
Join Date: Dec 2010
Posts: 125
iTrader Rating: (0)
Icon2 Re: harmonic balancer wobbling?

Quote:
Originally Posted by delsolintegra View Post
I just had the same thing happen to me on my 93 del Sol.
It turned out that the key that holds the main crank pulley in place broke and sheared the tines inside the crank pulley. It happened just when I turned on my AC too. How about that. I recently had work done and replaced the main crank seals and apparently they reused the old key when they replaced the pulley. The cure was buying a new crank pulley and new key. Also there was a small nick on the end of the crank but a little JB weld on that spot took care of that. The pulley cost about $160 (go OEM). The labor involves messing with the main crank nut.
That sounds really fishy.

Can you imagine the force necessary to shear the key in the harmonic balancer? What could put that much force on the pulley?

I bet that the shop that removed your harmonic balancer didn't torque the bolt properly when they reinstalled it. IIRC, it's supposed to be torqued to 150 ft lbs. If they only did it wrench tight, the bolt could have backed off under load, and then the balancer would have started to round the edge of the crankshaft and the key and its splines.

... That would also explain the wobbling harmonic balancer that the OP reported.

OP - did you have any work done on your engine recently? Can you check the bolt on the pulley and see if it's loose?
Sonia's Driver is offline   Reply With Quote
Old 04-19-2011, 09:39 AM   #7
Honda-Tech Member
 
Join Date: Jul 2009
Posts: 465
iTrader Rating: (0)
Default Re: harmonic balancer wobbling?

Well the shop that did the work was a honda shop that I used before and the first thing they checked was that the bolt was tight. It was still tight even after the pulley let go. We talked about it and he said he only saw this happen a few times before after being in to hundreds of cars. I think the lesson learned is always use a new key in the pulley. Like when working on a boat always use a new shear pin after doing propeller work.
delsolintegra is offline   Reply With Quote
Old 04-24-2011, 05:39 PM   #8
Honda-Tech Member
 
hotdoggies's Avatar
 
Join Date: Feb 2005
Location: Ardmore, Ok
Posts: 723
iTrader Rating: (0)
Default Re: harmonic balancer wobbling?

Im worried about Bearing damage from a unbalanced crank. As far as the crank, the passage on the snout still exist jus a little scarred.....I drove it maybe 30 miles likethis. So im thinkin bearing damage would be minimal.
__________________
00 Civic Si 168.1 hp 115ft lbs.
aem cai,itr throttle body, apexi world sport, dc 4-2-1, no cat, tuned apex'i vafc, ctr pistons, comp stg1 clutch, Skunk2 stg 1 cams. Tuned by jarret at velocity perf. SOLD!
hotdoggies is offline   Reply With Quote
Old 04-24-2011, 05:41 PM   #9
Honda-Tech Member
 
hotdoggies's Avatar
 
Join Date: Feb 2005
Location: Ardmore, Ok
Posts: 723
iTrader Rating: (0)
Default Re: harmonic balancer wobbling?

Quote:
Originally Posted by Sonia's Driver View Post
That sounds really fishy.

Can you imagine the force necessary to shear the key in the harmonic balancer? What could put that much force on the pulley?

I bet that the shop that removed your harmonic balancer didn't torque the bolt properly when they reinstalled it. IIRC, it's supposed to be torqued to 150 ft lbs. If they only did it wrench tight, the bolt could have backed off under load, and then the balancer would have started to round the edge of the crankshaft and the key and its splines.

... That would also explain the wobbling harmonic balancer that the OP reported.

OP - did you have any work done on your engine recently? Can you check the bolt on the pulley and see if it's loose?
I have pulled it off at the Honda Dealership and it scared the end of the crank. Have done no engine work as of late. The inside part of the Harmonic Balncer was completely stripped. Im debating on a new engine or Trying to fix the current engine.,
__________________
00 Civic Si 168.1 hp 115ft lbs.
aem cai,itr throttle body, apexi world sport, dc 4-2-1, no cat, tuned apex'i vafc, ctr pistons, comp stg1 clutch, Skunk2 stg 1 cams. Tuned by jarret at velocity perf. SOLD!
hotdoggies is offline   Reply With Quote
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Good Aftermartket Crankshaft Pulley/Harmonic Balancer? __oversea Honda Accord (1990 - 2002) 9 11-24-2014 09:08 PM
2000 Harmonic Balancer blue22 Honda Accord (1990 - 2002) 3 11-28-2010 03:57 PM
New To Hondas, And I Gotta Do A Crank In My GS-R Block. HELP! 88CRXJ Acura Integra 9 09-08-2009 09:16 PM
underdrive pulley lifes_simple Honda Civic (2001 - 2005) 32 07-31-2007 11:11 AM
which honda OE crank pulleys have no harmonic balancers? red civic standard Acura Integra 0 01-25-2004 11:06 AM


Tags
97, balancer, ballancer, civic, crank, del, harmonic, honda, integra, key, loose, shaft, si, sol, wobble

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



Join Honda-Tech.com

All times are GMT -8. The time now is 04:43 PM.



2014 Copyright, InternetBrands Inc.
Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.

Honda and the Honda marquee are registered trademarks of the American Honda Motor Company, Inc. Neither American Honda Motor Company nor its subsidiaries or affiliates shall bear any responsibility for Honda-Tech.com content, comments, or advertising. Honda-Tech.com is not affiliated with American Honda Motor Company in any way. American Honda Motor Company does not sponsor, support, or endorse Honda-Tech.com in any way. Copyright/trademark/sales mark infringements are not intended or implied.
Emails & Contact Details