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-   -   number 8 nose bearing-do i need to replace it? (http://forums.pelicanparts.com/911-engine-rebuilding-forum/196686-number-8-nose-bearing-do-i-need-replace.html)

adomakin 12-13-2004 10:24 AM

number 8 nose bearing-do i need to replace it?
 
how can i tell if my number 8 nose bearing is any good? do they fail? do you HAVE to replace it?

Andy

afterburn 549 12-13-2004 11:12 AM

most shops will say no.....most of us do anyway cause were insequre and all ready there...............

mtelliott 12-13-2004 12:07 PM

I would think that as long as it's still in spec, it would be fine. Not sure what spec is on these but it doesn't seem like a part that needs to be replaced.

adomakin 12-13-2004 12:32 PM

hmmm........

mtelliott 12-13-2004 02:27 PM

Maybe you should document what type of engine your building. That might help some of the experts to chime in on replace vs. reuse.

john walker's workshop 12-13-2004 03:56 PM

it gets particles imbedded into it just like the rest of the bearings. in fact, it is a bearing. it also takes a lot of side load from running the a/c and alternator. replace it.

adomakin 12-13-2004 10:07 PM

just pulled it off the end of the crank and i can see a an area that seems to have been taking a loading on both the inside and outside bearing surface. me thinks its time to buy a new one.

thanks for your advice blokes

Andy

Wayne 962 12-15-2004 12:02 AM

It's a good bet to replace it, although you can spec it out and check it against the dimensions in the Engine Book to see if it's still in spec.

-Wayne

adomakin 12-15-2004 03:58 AM

thanks Wayne, spoke to Tom yesterday and ordered a new one. your price including express delivery (and my free mug!)-$160, my porsche dealer-$254 PLUS delivery and no free mug. I love the UK!

Andy

Wayne 962 12-15-2004 04:10 PM

Wow, that's even with the crappy exchange rates now...

Oh, wait a sec, it works in your favor right now...

-Wayne

adomakin 12-15-2004 10:01 PM

yep-im trying to buy as much stuff from the states as possible without my wife finding out!

Andy


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