Got the crank pulley off finally

Discussion and technical advice for 84-89 AW10 & AW11 MR2. 3A-LU, 4A-GE, 4A-GZE.

Moderators: IMOC Moderators, IMOC Committee Members

Post Reply
SuperRedMR2
Posts: 5494
Joined: Mon May 16, 2005 8:40 pm
Location: Wickford, Essex

Got the crank pulley off finally

Post by SuperRedMR2 »

After persuasion with a hammer and ball joint breaker fork, the crank pulley came off.

These are the photos for comment.

This is bent by the way if you cannot tell from the photo.Image

Image

Something has been rubbing on this
Image

Think the aluminium pulley contributed to the issues.
PW@Woodsport
Posts: 7642
Joined: Tue Dec 14, 2004 6:40 pm
Location: durham
Contact:

Re: Got the crank pulley off finally

Post by PW@Woodsport »

My opinion is the pulley hasn't been fully tightened down, the only way that belt guide could get bent like that is if it wasn't clamped securely between the crank cog and the outer pulley.

The aluminium fillings are the result of the guide flapping against the pulley, so yeah in short you didn't tighten it up fully. That is why the belt lasted 1400 miles, to be honest i would have expected it to fail sooner.
Image
SuperRedMR2
Posts: 5494
Joined: Mon May 16, 2005 8:40 pm
Location: Wickford, Essex

Re: Got the crank pulley off finally

Post by SuperRedMR2 »

Hi Paul, I agree.

I have a replacement crank pulley but now require the guide plate but that can wait until the end of the month when i return from holiday.

Im going to see if i have it trailered to an engine tuning garage with a dyno to have it done all in one go.

Glad ive gotten to the bottom of it.

Paul, there is no difference in resistance when i turned the crank by hand, its not worth taking the head off is it?
Post Reply

Return to “MR2 MK1 1984-1989 NA & SC”