HOW TO DO AN ADVANCED SEARCH.
Mon Jul 08, 2013 3:56 pm by Admin
For the benefit of 944Hybrids users there are two search functions available for you to use.
The purpose of this sticky is to explain the "Advanced Search" function because it is much more powerful and is the best choice when researching information.
When you log on to the site a list of options is shown in a line at the top of the page. One option is labelled "Search", use this option (NOT the search box lower down on the right).
After you click on the upper search option, a drop down box appears. At the bottom of this box is a radio button marked "Advanced …
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I need some help with the pilot bearing
5 posters
944Hybrids: 924/944/968 and 928 V8 Conversions :: Technical Stuff (other than motors) :: General Mechanical
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I need some help with the pilot bearing
Not so much help as hand holding. I don't need to remove the LS1 pilot bearing, do I? It sits behind the adapter for the 944/LS1 bearing so it doesn't look to be in the way. They are in the freezer now getting ready to be installed. Thanks
Arthropraxis- Posts : 1103
Join date : 2009-09-02
Re: I need some help with the pilot bearing
I removed mine just to be sure on my ls1, but I dont know the true answer
cfgioja- Posts : 804
Join date : 2009-11-22
Age : 39
Location : Clarksville, AR
Re: I need some help with the pilot bearing
Thanks, for the quick reply. It sounds like a PITA to take out. I am trying to conserve energy. Anyone know for sure if it needs to be removed?
Arthropraxis- Posts : 1103
Join date : 2009-09-02
Re: I need some help with the pilot bearing
I hope the answer is no... I didn't remove mine
spence- Posts : 684
Join date : 2009-07-21
Age : 41
Location : St.Catharines, Ontario, Canada
Re: I need some help with the pilot bearing
Anybody have a definitive answer? Thanks, for the previous replies.
Arthropraxis- Posts : 1103
Join date : 2009-09-02
Best one I've ever used
[You must be registered and logged in to see this link.]
xschop- Posts : 2711
Join date : 2009-06-09
Location : OKC
Re: I need some help with the pilot bearing
Thanks for the link. So, does that mean I have to take it out?
Arthropraxis- Posts : 1103
Join date : 2009-09-02
Re: I need some help with the pilot bearing
If it interferes with the adapter seating, certainly. What is the crank depth left over for the adapter? the LS pilot adapter is 1.00" tall
xschop- Posts : 2711
Join date : 2009-06-09
Location : OKC
Re: I need some help with the pilot bearing
The hole for the adapter is about 11/16ths deep. The bearing sits in a deeper hole behind that. It doesn't look like it could interfere at all. Once the flywheel is on the adapter should be flush. Does that sound about right?
Arthropraxis- Posts : 1103
Join date : 2009-09-02
Re: I need some help with the pilot bearing
Just curious....Is the O.D. of the original bearing the same as the adapter O.D.? or is it stepped?
On my 5.3l crank end, the 1.0" tall LS pilot adapter fit snug seated and stuck out past the crank end. I actually used a 15x35x14 instead of a 15x35x11 pilot bearing to bring the pilot bearing right before (1/8") the TT shaft step....this is absolutely critical or you need to have a spare T-Tube on hand....
Look at 4th pic of the first post....
[You must be registered and logged in to see this link.]
On my 5.3l crank end, the 1.0" tall LS pilot adapter fit snug seated and stuck out past the crank end. I actually used a 15x35x14 instead of a 15x35x11 pilot bearing to bring the pilot bearing right before (1/8") the TT shaft step....this is absolutely critical or you need to have a spare T-Tube on hand....
Look at 4th pic of the first post....
[You must be registered and logged in to see this link.]
xschop- Posts : 2711
Join date : 2009-06-09
Location : OKC
Re: I need some help with the pilot bearing
Yes the area the adapter sits in is stepped with the bearing deeper in it. The adapter would seat fully ahead of the bearing and stick out about 3-4/16ths.
It occurs to me that I may not know WTF I am talking about. Is the step I am looking at actually the face of the pilot bearing?
It occurs to me that I may not know WTF I am talking about. Is the step I am looking at actually the face of the pilot bearing?
Arthropraxis- Posts : 1103
Join date : 2009-09-02
Re: I need some help with the pilot bearing
The step would be the O.D. of the original Pilot bearing (that would sit behind the LS-944 pilot adapter)
Calculate your TT shaft length from the TT flange....
then calc. your BH depth, BH adapter....
Calculate your TT shaft length from the TT flange....
then calc. your BH depth, BH adapter....
xschop- Posts : 2711
Join date : 2009-06-09
Location : OKC
Re: I need some help with the pilot bearing
Thanks, now I know what I will be doing this weekend. I was looking for that exact picture you linked to. I knew I had seen it somewhere.
Arthropraxis- Posts : 1103
Join date : 2009-09-02
Re: I need some help with the pilot bearing
No problem.... Where's that pic of the friction welded pilot bearing?
If you can install the 15x35x14, I would recommend it as it will last longer and protect the TT shaft much better as it has more radial load interface with the 15mm TT shaft O.D.
If you can install the 15x35x14, I would recommend it as it will last longer and protect the TT shaft much better as it has more radial load interface with the 15mm TT shaft O.D.
xschop- Posts : 2711
Join date : 2009-06-09
Location : OKC
Re: I need some help with the pilot bearing
if you are going to remove it go to Autozone, its the only place with the slide hammer with enough prongs to get mine out, I managed to remove mine in 5 mins once I got it.
They rented one out to me here in Oklahoma.
They rented one out to me here in Oklahoma.
cfgioja- Posts : 804
Join date : 2009-11-22
Age : 39
Location : Clarksville, AR
Re: I need some help with the pilot bearing
+1 to cfgioja!
Go to Autozone, rent the slide hammer and pilot bearing adapter (two separate rentals). You'll have it out in 2 minutes, guaranteed!
Go to Autozone, rent the slide hammer and pilot bearing adapter (two separate rentals). You'll have it out in 2 minutes, guaranteed!
Porch- Posts : 851
Join date : 2009-09-02
Age : 42
Re: I need some help with the pilot bearing
I will do that this weekend. I think they call it a blind hole bearing puller. Thanks for everyone's help.
Arthropraxis- Posts : 1103
Join date : 2009-09-02
Re: I need some help with the pilot bearing
[You must be registered and logged in to see this image.]
This is what I am looking at. The pilot bearing is deep inset. The first step is for the LS6 bearing below.
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The adapter will sit where the LS6 bearing would be. So, for a LS1 it doesn't look like removal of the pilot bearing is going to get the adapter any deeper since it is going to seat in front of the bearing.
This is what it looks like with both bearings removed.
[You must be registered and logged in to see this image.]
This is what I am looking at. The pilot bearing is deep inset. The first step is for the LS6 bearing below.
[You must be registered and logged in to see this image.]
The adapter will sit where the LS6 bearing would be. So, for a LS1 it doesn't look like removal of the pilot bearing is going to get the adapter any deeper since it is going to seat in front of the bearing.
This is what it looks like with both bearings removed.
[You must be registered and logged in to see this image.]
Arthropraxis- Posts : 1103
Join date : 2009-09-02
Re: I need some help with the pilot bearing
Ahhh, O.k. Glad you took pics. The Truck crank ends don't have that. I would gander that the reason your motor has that inner bearing is for the ability of a different transmission to mount up (auto and manual tranny shaft tips vary)
I wouldn't bother with it unless you are really picky about rotational weight
I wouldn't bother with it unless you are really picky about rotational weight
xschop- Posts : 2711
Join date : 2009-06-09
Location : OKC
Re: I need some help with the pilot bearing
The LT1 was like that too.... The adapter fit fine without having to remove the old bearing.
spence- Posts : 684
Join date : 2009-07-21
Age : 41
Location : St.Catharines, Ontario, Canada
Re: I need some help with the pilot bearing
If the tip of the torque tube doesn't stick past the bearing in the adapter then the LS1 bearing shouldn't need to come out. I will measure to be sure. That would be great to have one less thing to do. Thanks for everyone's input. Now onto fitting the motor.
Arthropraxis- Posts : 1103
Join date : 2009-09-02
944Hybrids: 924/944/968 and 928 V8 Conversions :: Technical Stuff (other than motors) :: General Mechanical
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