Crankshaft Pulley bolt removal - Defender Source
Defender Source  

Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions


Reply
 
Thread Tools
  #1  
Old May 12th, 2006, 09:27 PM
kellymoe's Avatar
kellymoe
Status: Offline
kevin
defender 130
Member
 
Join Date: Oct 2003
Location: burbank california
Posts: 967
Registry
Crankshaft Pulley bolt removal

How do you get that thing off. Do I need to go buy a special tool to keep it from ratating while I turn the bolt?

I have the workshop book out and it just says remove the bolt, duh. Is it RH or LH thread?

Thanks,

Kevin
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old May 12th, 2006, 09:53 PM
JimC's Avatar
JimC
Status: Offline
Jim Cheney
NAS 110 #145
Site Team
 
Join Date: Sep 2003
Location: Stuttgart, Germany
Posts: 7,154
Registry
I've never pulled a rover one, but on the toyota I got a 2x4 and bored a hole through it to access the bolt. I then bolted the 2x4 to the pulley using the fan bolts. The 2x4 jams up agains the chassis and the crank pulley bolt usually comes right out.
Reply With Quote
  #3  
Old May 12th, 2006, 10:09 PM
Michael
Status: Offline
Michael
Discovery 1998
Member
 
Join Date: Dec 2004
Location: USA
Posts: 290
Assuming the engine is still attached to a transmission:

Manual transmission should hold the crankshaft steady for you when in gear.

With an automatic, one way, but probably not the only way, is to pretend you are removing the bolts fixing the drive plate to the torque converter; but instead of using the crankshaft bolt to hold the flywheel steady, hold the flywheel steady with one of the drive plate's bolts, which will keep the crank pulley steady.
Reply With Quote
Sponsored Links
Advertisement
 
  #4  
Old May 12th, 2006, 10:17 PM
kellymoe's Avatar
kellymoe
Status: Offline
kevin
defender 130
Member
 
Join Date: Oct 2003
Location: burbank california
Posts: 967
Registry
Quote:
Originally Posted by Michael
Assuming the engine is still attached to a transmission:

Manual transmission should hold the crankshaft steady for you when in gear.

With an automatic, one way, but probably not the only way, is to pretend you are removing the bolts fixing the drive plate to the torque converter; but instead of using the crankshaft bolt to hold the flywheel steady, hold the flywheel steady with one of the drive plate's bolts, which will keep the crank pulley steady.

It is sitting on an engine stand n my garage. I will attempt the 2x4 method next week.
Reply With Quote
  #5  
Old May 12th, 2006, 10:38 PM
Hans's Avatar
Hans
Status: Offline
Hans Haase
The D-90.com Lab Rat
Member
 
Join Date: Oct 2003
Location: Long Island, NY
Posts: 2,381
That bolt is torqued down at around 200lb/ft or so, which is close to the torque rating of the engine. So in gear you WILL move the truck if you aren't careful. Those bolts are always a pain in the ass, no matter what they are on. I don't know if the harmonic balance is supposed to be pressed fit or not on these engines, but mine didn't need a puller to take off or re-install after the bolt was removed.

Last time I took mine out, I ended up putting the truck in gear and engaged the parking brake (manual tranny). Then I looped an old fan belt around the pully and I think the alternator mount, and used a wrench to twist the belt as tight as I could. Then I took a breaker bar, with a 3 foot length of pipe to extend it, and gave that bolt a quick whack to loosen it up.

Oh, and I believe it's RH thread.

-Hans

Follow-up Post:

Oh, I didn't realize it was on a stand in the garage. That is easier. Bolt a 2x4 or long piece of metal to the back side of the engine either on the flywheel or back end of the crankshaft where the flywheel attaches. Make it a couple feet long and strong, since that is a beastly amount of torque on that bolt.

-Hans
__________________
My oil line fix

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
My 100k stopped odometer fix

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Brace for impact, I'm in a "modifying mood". Massive thread count inbound.
Reply With Quote
  #6  
Old May 12th, 2006, 11:07 PM
Rod Hayward's Avatar
Rod Hayward
Status: Offline
Rod Hayward
95 D90 Green #2288
Member
 
Join Date: Nov 2004
Location: larkspur, co
Posts: 871
I feel like I'm missing something here...
It should take about 5 seconds with a 1/2" impact wrench. Lefty loosey.

Am I missing something?
Not trying to be a smartass, but I haven't had trouble with one.
Reply With Quote
  #7  
Old May 12th, 2006, 11:24 PM
mattdh's Avatar
mattdh
Status: Offline
Matt Hurst
Member
 
Join Date: Sep 2003
Location: Nebraska
Posts: 627
i with rod- i could not budge mine-then i picked up an impact wrench the next day came right off.left is loose.
Reply With Quote
  #8  
Old May 12th, 2006, 11:25 PM
Hans's Avatar
Hans
Status: Offline
Hans Haase
The D-90.com Lab Rat
Member
 
Join Date: Oct 2003
Location: Long Island, NY
Posts: 2,381
Not all of us have 1/2" impact wrenches :-)
By hand, they are a whole different animal, since you are turning them so slow that you end up rotating the whole crankshaft.

-Hans
__________________
My oil line fix

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
My 100k stopped odometer fix

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Brace for impact, I'm in a "modifying mood". Massive thread count inbound.
Reply With Quote
  #9  
Old May 13th, 2006, 12:42 AM
kellymoe's Avatar
kellymoe
Status: Offline
kevin
defender 130
Member
 
Join Date: Oct 2003
Location: burbank california
Posts: 967
Registry
Quote:
Originally Posted by Rod Hayward
I feel like I'm missing something here...
It should take about 5 seconds with a 1/2" impact wrench. Lefty loosey.

Am I missing something?
Not trying to be a smartass, but I haven't had trouble with one.
I have not tried the impact wrench yet. Dont know why I will give it a go.

Follow-up Post:

Just tried the 1/2 impact wrench with no success. It is lefty loosey, right? It's not a reverse thread?

Follow-up Post:

Quote:
Originally Posted by mattdh
i with rod- i could not budge mine-then i picked up an impact wrench the next day came right off.left is loose.
Impact wrench aint budging it

Follow-up Post:

Quote:
Originally Posted by Rod Hayward
I feel like I'm missing something here...
It should take about 5 seconds with a 1/2" impact wrench. Lefty loosey.

Am I missing something?
Not trying to be a smartass, but I haven't had trouble with one.
Got it with the impact wrench but it took alot longer than I thought, it was on there good. Thanks. I dont know why I didnt use it before. I guess I was thinking the damn thing was made of glass or something Oh well thanks again. Got it all stripped down.
Reply With Quote
  #10  
Old May 13th, 2006, 02:16 AM
mattdh's Avatar
mattdh
Status: Offline
Matt Hurst
Member
 
Join Date: Sep 2003
Location: Nebraska
Posts: 627
kevin-now that i think about it-it didnt come right off like any other bolt -with an impact ,had to hold the trigger on the impact down for around 10 seconds or so(to give time to beat it loose).if it makes you fill any better i took my entire truck apart and didnt think of an impact untill i was almost done.that would have really saved some time
Reply With Quote
  #11  
Old May 13th, 2006, 02:30 AM
kellymoe's Avatar
kellymoe
Status: Offline
kevin
defender 130
Member
 
Join Date: Oct 2003
Location: burbank california
Posts: 967
Registry
Quote:
Originally Posted by mattdh
kevin-now that i think about it-it didnt come right off like any other bolt -with an impact ,had to hold the trigger on the impact down for around 10 seconds or so(to give time to beat it loose).if it makes you fill any better i took my entire truck apart and didnt think of an impact untill i was almost done.that would have really saved some time
I noticed under your name you have a pastel green 90. Got a picture of it? Thanks again for your help.
Reply With Quote
  #12  
Old May 13th, 2006, 07:55 AM
Rod Hayward's Avatar
Rod Hayward
Status: Offline
Rod Hayward
95 D90 Green #2288
Member
 
Join Date: Nov 2004
Location: larkspur, co
Posts: 871
Quote:
Originally Posted by Hans
Not all of us have 1/2" impact wrenches :-)
By hand, they are a whole different animal, since you are turning them so slow that you end up rotating the whole crankshaft.

-Hans
Sorry, Hans. Good point...

But, you know, if you'd quit dickin' around and move out here to Colorado you could use mine.

Reply With Quote
  #13  
Old May 13th, 2006, 11:05 AM
mattdh's Avatar
mattdh
Status: Offline
Matt Hurst
Member
 
Join Date: Sep 2003
Location: Nebraska
Posts: 627
i plan on posting more and better quality pics when i am done with it
Attached Thumbnails
Click image for larger version

Name:	DSC00385.JPG
Views:	113
Size:	130.9 KB
ID:	5646  
Reply With Quote
  #14  
Old May 13th, 2006, 12:22 PM
Hans's Avatar
Hans
Status: Offline
Hans Haase
The D-90.com Lab Rat
Member
 
Join Date: Oct 2003
Location: Long Island, NY
Posts: 2,381
Rod: I know, I know..... I'm tryin man! Might have an interview next week, but not holding my breath. But then again, if I ever get out of living in an apartment and get a place with a garage on it, I have a compressor in storage already. Then maybe you can come over when you need to use the lathe. (also in storage, both in mom's garage about 20 minutes away.)

-Hans
__________________
My oil line fix

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
My 100k stopped odometer fix

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Brace for impact, I'm in a "modifying mood". Massive thread count inbound.
Reply With Quote
  #15  
Old May 13th, 2006, 12:24 PM
kellymoe's Avatar
kellymoe
Status: Offline
kevin
defender 130
Member
 
Join Date: Oct 2003
Location: burbank california
Posts: 967
Registry
Quote:
Originally Posted by mattdh
i plan on posting more and better quality pics when i am done with it
Yours is a little lighter I think than mine. I think mine is not a true pastel green. Yours looks real sharp. Nice job.
Reply With Quote
  #16  
Old May 13th, 2006, 12:31 PM
Rod Hayward's Avatar
Rod Hayward
Status: Offline
Rod Hayward
95 D90 Green #2288
Member
 
Join Date: Nov 2004
Location: larkspur, co
Posts: 871
Damn, Hans...
You Have a lathe?

Now I'm jelous!!!!

Reply With Quote
  #17  
Old November 1st, 2006, 03:29 PM
steinhnj's Avatar
steinhnj
Status: Offline
Neil Steinhagen
1990 Perentie GS
Member
 
Join Date: Apr 2006
Location: Periscope Depth
Posts: 758
Just did this on my 95 manual with the advice from a friend (Thanks a ton Rich). I put the breaker bar and socket on it, then used my highlift jack handle as a cheater bar and wedged it into the garage floor. Then with the truck in neutral I turned her over for about a split second. Took two tries and the bolt was loose. I did spray the crap out of it with PB Blaster and made sure everyone was clear before doing it.

Yes, could be damaging/dangerous. Worked for me though. This way I didn't have to remove the rad to make room for an impact wrench.

If you are crazy and do try this, remember the engine cranks clockwise as you are looking at the front end and wedge the cheater bar so it on the right side as you're looking at it (driver's side). Screw this up and your in for a wild ride.
Reply With Quote
Reply

Lower Navigation
Go Back   Defender Source > Defender & Series Technical Discussions > Defender Technical Discussions

Tags
crankshaft, pulley

Thread Tools

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 Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Help with rear link removal UpnOver Defender Technical Discussions 19 October 22nd, 2009 05:21 PM
Crankshaft pulley bolt size CDNRover Defender Technical Discussions 2 April 18th, 2008 11:06 PM
crankshaft bolt jimmy salmon Defender Technical Discussions 2 December 13th, 2007 10:22 AM
crankshaft pulley Puller bstraw Defender Technical Discussions 1 July 2nd, 2007 02:57 PM
bolt head size?(wrench size) mattdh Defender Technical Discussions 3 October 7th, 2004 05:55 PM


All times are GMT -5. The time now is 09:15 PM.


Copyright