DIY - changing front wheel bearings - Page 2

krazykarl · 09-24-2009, 07:35 PM

excellent video, should come in handy when I replace mine in the spring

944obscene · 09-24-2009, 07:58 PM

Van... I love you. Keep making vids like this.

jim 7 · 09-24-2009, 08:25 PM

That was really good. I found the blue nitrile gloves helped alot in keeping the hands clean department. I liked the idea of using the screwdriver to tension the bearings. But I wonder if there not a tad too tight and think that after spinning the rotor and tightening the nut the way you do you might want to back off a eighth of a turn. Just my 2 cents. All together a very instructive video.

theiceman · 09-24-2009, 08:55 PM

a great vid and very helpfull fo those considering there first DIY.. gotta comment on that bearing tightening method .. certainly explains 3 sets of wheel bearings in ten years. That is the correct method to seat the bearing but it must be backed off about the 1/8th that jim suggests ...

Great vid tho ....

Van · 09-24-2009, 09:37 PM

My thought has been that I want zero bearing play, but minimal preload. Turning the hub while tightening with the screw driver ensures the bearing rollers are contacting the races - and with a screw driver, you really don't have much leverage. I think you'll find the preload isn't as tight as you think.

But I'm willing to listen to other opinions and anecdotal evidence. I've found that I get wheel wobble on the track if the bearings are looser than that. It's very disconcerting to hit the brakes at 140 MPH and find they go half-way to the floor because the lateral loading on the wheels has caused the rotor to tilt and push the pistons back into the calipers a little bit.

That's just my 2 cents.

(Is a set of wheel bearings for every 10,000 track miles really that bad? I get about 2,000 miles out of a set of tires... and about 1,000 miles (sometimes less) our of front brake pads.)

944Ross · 09-25-2009, 02:17 AM

Great video (sounds like you had some helpers?!)

I just adjusted my front wheel bearing the other day, due to a perceived shimmy. I think your method is fine. Excessive pre-load is bad for bearing life, excessive looseness is bad for steering and brakes. It's really hard to find that zero pre-load/zero play level, so going a little tight is prudent. With bearings costing about $20 a set, I can live with a little life reduction.

J Berk · 09-25-2009, 02:51 PM

Great job....the 944 community says THANK YOU !

I need to tighten mine (replaced not all that long ago by the 'wrench') prior to my next track event ...so timing is outstanding !

Luis de Prat · 09-25-2009, 07:49 PM

Fantastic contribution. Now just keep praying for the hubs not to become warped from plain old use.

vt951 · 09-25-2009, 11:23 PM

Nice vid, Van. I think one of my front bearing literally just started going yesterday (groaning noise at speed). If I bring my car to the Lemons race, will you change them for me? :-)

WizPorsche944 · 09-26-2009, 12:14 AM

I really like these DIY videos. I say make one with the belts.

BlackOp · 09-26-2009, 01:34 AM

Rennlist should do a sticky ...keep all this quality information consolidated. 944 101...basic maintenance/FAQ.

I will do a silicone vacuum line replacement soon...I will be filming it at least. Ha...

Van · 09-26-2009, 09:55 AM

Quote:

Originally Posted by vt951

Nice vid, Van. I think one of my front bearing literally just started going yesterday (groaning noise at speed). If I bring my car to the Lemons race, will you change them for me? :-)

Of course! I imagine we'll have the tools and the time!

vt951 · 09-26-2009, 10:36 AM

Quote:

Originally Posted by Van

Of course! I imagine we'll have the tools and the time!

Ha ha. I was kidding, but thanks man. I can do it myself now that I've watched your videos.

WizPorsche944 · 09-26-2009, 11:06 AM

It is much nicer to actually watch how to do something rather then reading it in a book. Great job Van i'd love to see more 944 DIY videos.

DanR · 09-26-2009, 11:30 AM

great job van, as always you are the guru!

09-24-2009, 08:25 PM	#18
jim 7 Addict Rennlist Member Join Date: Nov 2002 Location: Ontario, Canada Posts: 8,757	That was really good. I found the blue nitrile gloves helped alot in keeping the hands clean department. I liked the idea of using the screwdriver to tension the bearings. But I wonder if there not a tad too tight and think that after spinning the rotor and tightening the nut the way you do you might want to back off a eighth of a turn. Just my 2 cents. All together a very instructive video. __________________ 93 black 968 coupe Chimera Project 01 Audi A8L 95 Jeep YJ 01 GMC Savana 07 Gardena electric

09-24-2009, 08:55 PM	#19
theiceman Addict Rennlist Member Join Date: Aug 2005 Location: Cambridge Ontario Posts: 9,897	a great vid and very helpfull fo those considering there first DIY.. gotta comment on that bearing tightening method .. certainly explains 3 sets of wheel bearings in ten years. That is the correct method to seat the bearing but it must be backed off about the 1/8th that jim suggests ... Great vid tho .... __________________ 78 SC Targa 76 XS360 95 Audi 90 Sport 09 Maxima Gone but not forgotten 87 944S " I'm not very smart but I know how to google "

09-25-2009, 02:17 AM	#21
944Ross Addict Rennlist Member Join Date: Dec 2008 Location: Rio Rancho NM (ABQ) Posts: 766	Great video (sounds like you had some helpers?!) I just adjusted my front wheel bearing the other day, due to a perceived shimmy. I think your method is fine. Excessive pre-load is bad for bearing life, excessive looseness is bad for steering and brakes. It's really hard to find that zero pre-load/zero play level, so going a little tight is prudent. With bearings costing about $20 a set, I can live with a little life reduction. __________________ '86 944/2 ..........'52 Ford F-1.......... '91 H-D FXRS-C '94 Mustang GT.......... '69 Triumph Bonneville

09-25-2009, 02:51 PM	#22
J Berk Addict Rennlist Member Join Date: Aug 2001 Location: Northern NJ Posts: 6,168	Great job....the 944 community says THANK YOU ! I need to tighten mine (replaced not all that long ago by the 'wrench') prior to my next track event ...so timing is outstanding ! __________________ Joe NNJR-PCA Member http://www.tracknovice.com 1991 944 S2 - black on black, white gauges/blue LED's from NH Speedometer...heated sport seats and a gt racing vented nose panel! Daily Rides: 2006 Honda Ridgeline RTL (AMAZON GREEN!) - my DD 2007 Mazda CX-9 Grand Touring w/all options - Wife's DD Past: 1984 944..gone but not forgotten.

09-25-2009, 07:49 PM	#23
Luis de Prat Addict Rennlist Member Join Date: Jun 2001 Location: Barcelona Posts: 9,181	Fantastic contribution. Now just keep praying for the hubs not to become warped from plain old use. __________________ RLM 001222-2342 '83 944 gemini gray metallic '90 944S2 cabrio linen metallic '91 951 cabrio #209 of 528, black

09-24-2009, 07:35 PM	#16
krazykarl User Join Date: Sep 2008 Location: Minneapolis, MN Posts: 537	excellent video, should come in handy when I replace mine in the spring

09-24-2009, 07:58 PM	#17
944obscene User Join Date: Sep 2005 Location: Tulsa Oklahoma Posts: 1,906	Van... I love you. Keep making vids like this.

09-24-2009, 09:37 PM	#20
Van Addict Rennlist Member Join Date: Oct 2002 Location: Woodstock, NY Posts: 5,057	My thought has been that I want zero bearing play, but minimal preload. Turning the hub while tightening with the screw driver ensures the bearing rollers are contacting the races - and with a screw driver, you really don't have much leverage. I think you'll find the preload isn't as tight as you think. But I'm willing to listen to other opinions and anecdotal evidence. I've found that I get wheel wobble on the track if the bearings are looser than that. It's very disconcerting to hit the brakes at 140 MPH and find they go half-way to the floor because the lateral loading on the wheels has caused the rotor to tilt and push the pistons back into the calipers a little bit. That's just my 2 cents. (Is a set of wheel bearings for every 10,000 track miles really that bad? I get about 2,000 miles out of a set of tires... and about 1,000 miles (sometimes less) our of front brake pads.)

09-25-2009, 11:23 PM	#24
vt951 Addict Rennlist Member Join Date: Dec 2005 Location: Cincinnati Posts: 1,096	Nice vid, Van. I think one of my front bearing literally just started going yesterday (groaning noise at speed). If I bring my car to the Lemons race, will you change them for me? :-) __________________ Alan '86 951 Guards Red LS-1 swap in progress High Strung 44 control arms

09-26-2009, 12:14 AM	#25
WizPorsche944 Addict Rennlist Member Join Date: Jun 2004 Location: Douglassville PA Posts: 1,283	I really like these DIY videos. I say make one with the belts.

09-26-2009, 01:34 AM	#26
BlackOp User Join Date: Nov 2007 Location: Chicago Posts: 227	Rennlist should do a sticky ...keep all this quality information consolidated. 944 101...basic maintenance/FAQ. I will do a silicone vacuum line replacement soon...I will be filming it at least. Ha...

09-26-2009, 11:06 AM	#29
WizPorsche944 Addict Rennlist Member Join Date: Jun 2004 Location: Douglassville PA Posts: 1,283	It is much nicer to actually watch how to do something rather then reading it in a book. Great job Van i'd love to see more 944 DIY videos.

09-26-2009, 11:30 AM	#30
DanR Addict Rennlist Member Join Date: Jun 2007 Location: Armonk - NY Posts: 2,660	great job van, as always you are the guru! __________________ 997 daily driver 951 Sliver Rose track car