Low power / broken rocker shaft

professorpunishment · Post by **professorpunishment** » Fri Mar 02, 2012 8:47 am

Hello again all,

This is further to an earlier topic - stalls when putting in gear: http://www.delica.ca/forum/stall-when-p ... 12400.html

My mechanic first changed the fuel filter. When that didn't help, he looked a little deeper and found the rocker shaft was broken in two places!

That was replaced, and the van ran great for about 30 km... then it suddenly lost power again and now is in bad shape again. Idling rough, sounds like it is not firing all cylinders. I am concerned the rocker shaft is going to break again / has broken again because of some underlying cause that I can't identify.

Any ideas?

jessef · Post by **jessef** » Fri Mar 02, 2012 9:35 am

leakdown and compression test first to see if it's breathing inside

Post by **FalcoColumbarius** » Sat Mar 03, 2012 1:37 am

professorpunishment wrote:Hello again all,

This is further to an earlier topic - stalls when putting in gear: http://www.delica.ca/forum/stall-when-p ... 12400.html

My mechanic first changed the fuel filter. When that didn't help, he looked a little deeper and found the rocker shaft was broken in two places!

That was replaced, and the van ran great for about 30 km... then it suddenly lost power again and now is in bad shape again. Idling rough, sounds like it is not firing all cylinders. I am concerned the rocker shaft is going to break again / has broken again because of some underlying cause that I can't identify.

Any ideas?

Have you checked the timing belt and tensioner?

Falco.

professorpunishment · Post by **professorpunishment** » Wed Mar 28, 2012 3:00 pm

Just an update on this, in case anyone else ends up in the same boat:

Problem was that broken rocker shaft caused a crack in one of the rocker arms, so after a few kms of use, a rocker arm broke. New rocker arms installed, and now runs like a top!

Post by **FalcoColumbarius** » Wed Mar 28, 2012 5:59 pm

Glad everything worked out for you, Professor, did it set you back much?

Falco.

professorpunishment · Post by **professorpunishment** » Thu Mar 29, 2012 3:59 pm

Yes, yes it did. The mechanics here were good about it -- didn't charge me the total number of hours they put into it, just trying to figure out the problem in the first place -- but the rocker shaft job was $1000 and the rocker arms $600.

Delica Canada | Mitsubishi Van Club

Low power / broken rocker shaft

Low power / broken rocker shaft

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