A place for more technical discussions. Please make sure you post in the correct section on the site, this way it keeps the site tidy AND ensures you get a more relevant answer.

Air Con/Power Steering belt JB43 question

  • Big Nick
  • Topic Author
  • Visitor
  • Visitor
    Public
19 Jul 2023 06:38 #249903 by Big Nick
Hi everyone,
I have a big issue with the air con/power steering belt slipping - particularly in the evenings with temperature changes. I was wondering what other owners of the JB43 do for their power steering belts, because I have heard that its a bit of a common problem. For some reason the other belt doesn't seem to give any issues, but it does seem tighter.

I use the specified 4PK950 belt, and tried but couldn't fit a 4PK930, so I might try the 940.

Does anyone have any tricks that keep theirs quiet? Or is it just me with the issue? Or do people commonly run smaller than specified belts? Perhaps it is the brand I have used, but it was sent by Suzistore, Australia's Jimny specialists, so they'd know more than me.

Thanks for any info you may have

Nick

Please Log in or Create an account to join the conversation.

More
19 Jul 2023 07:56 #249906 by Roger Fairclough
Reasons for a slipping belt are usually not tight enough, not a proper fit or serious resistance in the bearings of what the belt is driving. The latter would quickly overheat the belt and it would fail ie lots of smoke and then fire. The belt should fit into the sides of the pulley without touching the bottom. Belt tightness will depend on a number of factors so stick to recommendations.

Roger

Please Log in or Create an account to join the conversation.

More
19 Jul 2023 08:48 #249907 by mlines
A common issue on these is a failing Crankshaft pulley. It sounds like the belt but in fact the pulley has a rubber damping insert which is failing. Look at the pulley with a torch and you can often see it wobble.

Change it before it fails completely.

Martin

2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses

Please Log in or Create an account to join the conversation.

More
19 Jul 2023 19:33 #249916 by Busta
Belt length isn't critical, as long as it fits on and you can get it tight within the movement range of the tensioner.  Are you using the 10mm hex hole in the tensioner to get it tight?

Please Log in or Create an account to join the conversation.

  • Big Nick
  • Topic Author
  • Visitor
  • Visitor
    Public
27 Jul 2023 09:55 #250015 by Big Nick
Replied by Big Nick on topic Air Con/Power Steering belt JB43 question
I had someone look at it, but they said the pulley was it. It was the belt.
So I've changed the belt over, started the car and the belt was too loose, so didn't turn and I lost power steering. I've since pulled it all apart to get maximum tension, put it back together and it all spins now, and it is tight but power steering hasn't come back and the engine light is on... Not sure what I've done.

Does the power steering shut down until the engine light is cleared? It's a 2001 so has the obd 1.
Or have I done something? The belt is back on as it should be, all the right pulleys.

Please Log in or Create an account to join the conversation.

More
27 Jul 2023 15:07 #250018 by jackonlyjack
Sounds strange 
does the steering pump pulley rotate when running 
I would lift front wheels off the ground start engine
remove ps reservoir cap then turn steering wheel full lock reft to right a couple of times
to see if this helps it wake up


eml if you used a pry bar on alternator you could have caught the sensor for crank (M series engine)
or caught nok sensor wire goes round back of power steering pump to the block 

Please Log in or Create an account to join the conversation.

Time to create page: 0.172 seconds
Joomla template by a4joomla