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tj924 · Posted: Mon Apr 03, 2006 3:58 pm Post subject: Split CV Boot

Was under the car yesterday checking the new fuel pump & found one of my CV boots (the inboard one next to the transmission) is badly split. Still looks to be plenty of grease in there, but should I only drive the car a minimal amount until I can replace the boot?

On Performance9 there are 2 mentions of a CV Boot. There is "CV Boot 924/944" (P/N 411501149A) which is $10, but there is also a "CV Boot Kit 924 1976-85 944 (P/N 94433190300) for $30. What would be included in the kit, apart from the boot?

Also found this tip in a previous thread:

Ozzie · Posted: Mon Apr 03, 2006 5:58 pm Post subject:

As each shaft has 2 boots I suppose the kit would do a shaft and have cable ties as well. It might even have grease.
The super glue sounds easy enough but IMO I wouldn't trust it.
Buy 2 kits and do both sides.
The rubber on all must be the same age and about to fail.
Would you replace one brake pad?
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Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
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tj924 · Posted: Mon Apr 03, 2006 6:11 pm Post subject:

I think the boot got torn open when I bottomed out going over a deeper than expected rut on a dirt road. The other boots appear to be in good nick (no cracks or splits) but I'll jack the entire rear of the car up next weekend & have a good look. I'll also check if the grease in the split boot feels gritty, in which case I guess it'd be a good idea to pull the CV joint off & inspect anyway.

Can I do the inner CV joint (ie the one attached to the transmission) by just taking off the inner end without also having to remove the wheel hub etc?

BTW, I think the kit is a single boot with grease & clamps for 1 CV joint only.
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TJ
Silver '82 924 NA 5-Speed Manual

Ozzie · Posted: Mon Apr 03, 2006 8:23 pm Post subject:

Smoothie · Posted: Tue Apr 04, 2006 3:38 am Post subject:

If completely cleaning out and replacing the grease (necessary because I can't imagine there not being any grit in there), it's easier and more comfortable to work on if you just remove the whole half-shaft with both cv joints attached. It'll come off without having to remove a wheel hub or anything else.
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Paul · Posted: Tue Apr 04, 2006 9:34 am Post subject:

TJ I suggest you pull the axle as Smoothie says and completly tear down both CV joints, clean them, and put them back together with new boots, grease and clamps.

If you find the one with the good boot is dry or the grease is all "caked up", I'd do the other axle too.

This is considered normal preventative maintenance on these cars.
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tj924 · Posted: Tue Apr 04, 2006 12:26 pm Post subject:

Ozzie · Posted: Tue Apr 04, 2006 2:57 pm Post subject:

I'd buy 4 boots, some grease and cable ties - should be about $50au.

Boots - $10 ea.
Tub off grease from CBC bearings $10
Cable ties $2
The kit sounds like a rip off.
_________________
Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance

tj924 · Posted: Tue Apr 04, 2006 3:04 pm Post subject:

So using cable ties (ZIP ties) would work just fine? What about the circlip & washer? Just reuse the old ones? I assume the "small clamp" would just be used to secure the small end of the boot to the half-shaft (I think thats what its called)?
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TJ
Silver '82 924 NA 5-Speed Manual

Mike924 · Joined: 12 Aug 2004 Posts: 2601 Location: IoW UK

5150 · Posted: Tue Apr 04, 2006 5:01 pm Post subject:

Well, as I said it's probably not ideal to split the boot and glue it the way I've done in the past, but I've never had one re-split. The steering rack boot is still on my 924 and still doing it's job. I've replaced about 4-5 CV boots in this way on cars that I kept for a couple of years with no problems. If you're thinking long-term then do it right, if you need a quick fix then just split and glue a boot - the rubber surface on the join needs to be perfectly clean and don't slip it over the ends into place until the glue has fully set or it'll open up.
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tj924 · Posted: Thu Apr 06, 2006 4:29 pm Post subject:

Mike924 · Joined: 12 Aug 2004 Posts: 2601 Location: IoW UK

TJ, I think the answer to all your questions is yes. I don't think any of the things you mentioned are terribly critical, so just go ahead.

Personally, I'm not a fan of cable ties on rubber boots (although I admit thery're bloody convenient when fitting). They tend to bite into the rubber to a visious degree and have to be cut off to be removed, which can damage the boot if you just want to remove it temporaraily. I prefer Jubilee-type clips.
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1993 Porsche 968 Coupe, Midnight Blue, 6 spd

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Lizard · Posted: Fri Apr 07, 2006 1:03 am Post subject:

I would go to a parts store and find hose clamps that are big enough to go over the boot over zap straps or zip ties.

as per the horseshoe clip (looks like a c clip) and washer, yes reuse old should be no issues there.
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timstar92404 · Joined: 22 Sep 2004 Posts: 2075 Location: richmond BC

one of mine is also badly split, I have been driving like this for a long time.....
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