V70 rear wiper issues + solution - Page 9

wstobin · Sep 22nd, 2012, 17:47

I found R-P's post today and it was very helpful in my renovation of my wiper motor. The shaft was rusted solid and would not move. It took alot of hammering and WD-40 to get it out.

While disassembling and reassembling, I was haunted by R-P's description of a small O ring on the brass tube. I never saw it but thought maybe 2006s did not have them.

I reinstalled everything and found that there was water leaking from the gearbox. I went back to the workbench and looked all over. Of course, I found the little O ring.

Can anyone tell me where that O ring is supposed to go? I guess on the brass tube somewhere, but I don't know if it should be at the top, bottom, middle or somewhere else.

Thanks in advance.

Sean

theskenic · Sep 26th, 2012, 11:01

I bought an 03 V70 with all the bells and whistles. The only thing wrong was the rear wiper was stuck in the vertical position. Current was getting to the motor but is wasn't working. Following the above I dismantled the wiper shaft which was siezed cleaned it of any corosion and greased it up. Even with the shaft and nylon wheel removed the motor would not run. The armature was very stiff to turn the fault being the front bearing. I couldn't get the armature out of this bearing. Liberal squirts of WD40 and constantly turning and rocking the armature freed it up. It is neccessary to rock the armature about as it is a self centering bearing and must be free to find it's own position. With a good clean out and plenty of grease it was re-assembled. It now works as it should. Many thanks for a great post which has saved me a couple of hundred quid.

amalgaami · Nov 24th, 2012, 06:41

White toothed wheel that is driven by the motor and turns a round motion into a back-and-forth-swinging-motion.

What is diameter of white toothed wheel and how many tooth it has?
Can I found 3D model or 2D drawing of wheel from somewhere?

-a

Chris1960 · Nov 29th, 2012, 11:06

Just managed to get a secondhand rear wiper motor for my 04 XC70 that parks same side (drivers) but had to go to Volvo to buy a new washer jet nozzle (£5!!) as was missing. The new nozzle doesn't seem to fit properly and I'm a bit worried about bashing it in. Are there different sizes or do I just have to "Bash" the thuing into the brass tube ??

stinger04038 · Nov 30th, 2012, 17:24

This is an excellent post, however I can not seem to find if it matters which specific direction the white gear is positioned in when trying to resemble. Any adive would be wonderful, thanks in advance

Thames · Feb 28th, 2013, 02:06

Ive been able to save mine. The shaft was stuck in the sleeve. The motor + gears were fine, clean and well-greased. Works like new !

A lex · Mar 7th, 2013, 13:47

Quote:

Originally Posted by R-P

Currently got mine in pieces on the kitchen table....

Where should the two small 'blocks' sit in relation to everything else when putting it back together?

It all kind of fell apart when I removed the motor and I didnt get a chance to see how it all fitted together.

Great thread

Symes · Mar 7th, 2013, 13:53

Tricky this... the blocks are the motor brushes and need to slide into plastic holder, compressing the small springs as they go. Then, you need to hold them in place whilst the shaft of the rotor goes through the middle. The brushes the spring out against the commutator (copper neck with grooves in it).

It may take a few tries - the springs may shoot out, so keep an eye on where they go!

Have fun!

A lex · Mar 7th, 2013, 13:54

Quote:

Originally Posted by Symes

Tricky this... the blocks are the motor brushes and need to slide into plastic holder, compressing the small springs as they go. Then, you need to hold them in place whilst the shaft of the rotor goes through the middle. The brushes the spring out against the commutator (copper neck with grooves in it).

It may take a few tries - the springs may shoot out, so keep an eye on where they go!

Have fun!

I had just figured out after a bit of lateral thinking.

Tricky isnt the word for it!!

Brendan W · Mar 7th, 2013, 13:57

They're the brushes for the motor - keeps the magnetic field pointing the right way when the motor turns. They live up in the two slots , spring loaded ( one seems to be missing). Tricky bit is keeping them retracted against the springs on reassembly. The curve on the ends will show you which way they go back although normally the slots are not square so it's idiot proof.
They can be jammed in the slots with bits of matchsticks which makes the job a slight bit easier.

Sep 26th, 2012, 11:01	#82
theskenic New Member Last Online: Sep 18th, 2015 17:03 Join Date: Sep 2012 Location: wickford	V70 rear wiper I bought an 03 V70 with all the bells and whistles. The only thing wrong was the rear wiper was stuck in the vertical position. Current was getting to the motor but is wasn't working. Following the above I dismantled the wiper shaft which was siezed cleaned it of any corosion and greased it up. Even with the shaft and nylon wheel removed the motor would not run. The armature was very stiff to turn the fault being the front bearing. I couldn't get the armature out of this bearing. Liberal squirts of WD40 and constantly turning and rocking the armature freed it up. It is neccessary to rock the armature about as it is a self centering bearing and must be free to find it's own position. With a good clean out and plenty of grease it was re-assembled. It now works as it should. Many thanks for a great post which has saved me a couple of hundred quid.

Sep 22nd, 2012, 17:47	#81
wstobin New Member Last Online: Mar 3rd, 2013 05:57 Join Date: Sep 2012 Location: Vänersborg	I found R-P's post today and it was very helpful in my renovation of my wiper motor. The shaft was rusted solid and would not move. It took alot of hammering and WD-40 to get it out. While disassembling and reassembling, I was haunted by R-P's description of a small O ring on the brass tube. I never saw it but thought maybe 2006s did not have them. I reinstalled everything and found that there was water leaking from the gearbox. I went back to the workbench and looked all over. Of course, I found the little O ring. Can anyone tell me where that O ring is supposed to go? I guess on the brass tube somewhere, but I don't know if it should be at the top, bottom, middle or somewhere else. Thanks in advance. Sean

Nov 24th, 2012, 06:41	#83
amalgaami New Member Last Online: Nov 24th, 2012 07:36 Join Date: Nov 2012 Location: x	White toothed wheel that is driven by the motor and turns a round motion into a back-and-forth-swinging-motion. What is diameter of white toothed wheel and how many tooth it has? Can I found 3D model or 2D drawing of wheel from somewhere? -a

Nov 29th, 2012, 11:06	#84
Chris1960 Junior Member Last Online: Oct 26th, 2015 10:03 Join Date: Mar 2011 Location: Chippenham	Just managed to get a secondhand rear wiper motor for my 04 XC70 that parks same side (drivers) but had to go to Volvo to buy a new washer jet nozzle (£5!!) as was missing. The new nozzle doesn't seem to fit properly and I'm a bit worried about bashing it in. Are there different sizes or do I just have to "Bash" the thuing into the brass tube ??

Nov 30th, 2012, 17:24	#85
stinger04038 New Member Last Online: Jan 27th, 2013 19:36 Join Date: Nov 2012 Location: columbia	This is an excellent post, however I can not seem to find if it matters which specific direction the white gear is positioned in when trying to resemble. Any adive would be wonderful, thanks in advance

Feb 28th, 2013, 02:06	#86
Thames White V' afficionados Last Online: Aug 1st, 2022 22:02 Join Date: Dec 2004 Location: Chicoutimi	Ive been able to save mine. The shaft was stuck in the sleeve. The motor + gears were fine, clean and well-greased. Works like new !

Mar 7th, 2013, 13:53	#88
Symes Master Member Last Online: Apr 10th, 2024 03:33 Join Date: Oct 2001 Location: Andover, Hants	Tricky this... the blocks are the motor brushes and need to slide into plastic holder, compressing the small springs as they go. Then, you need to hold them in place whilst the shaft of the rotor goes through the middle. The brushes the spring out against the commutator (copper neck with grooves in it). It may take a few tries - the springs may shoot out, so keep an eye on where they go! Have fun!

Mar 7th, 2013, 13:57	#90
Brendan W Premier Member Last Online: Apr 2nd, 2024 19:50 Join Date: Dec 2007 Location: Wexford	They're the brushes for the motor - keeps the magnetic field pointing the right way when the motor turns. They live up in the two slots , spring loaded ( one seems to be missing). Tricky bit is keeping them retracted against the springs on reassembly. The curve on the ends will show you which way they go back although normally the slots are not square so it's idiot proof. They can be jammed in the slots with bits of matchsticks which makes the job a slight bit easier.

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