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Spigot Bush Question

Posted: Wed Dec 10, 2008 10:18 pm
by bullyboy
Hi

I am currently rebuilding a 2002 4.6 rv8, its going onto a lt77 box, will i have to change the spigot bush?
I have a spigot bush of my old v8 but it doesnt look diferent.

Thanks

Re: Spigot Bush Question

Posted: Thu Dec 11, 2008 6:31 am
by sidecar
bullyboy wrote:Hi

I am currently rebuilding a 2002 4.6 rv8, its going onto a lt77 box, will i have to change the spigot bush?
I have a spigot bush of my old v8 but it doesnt look diferent.

Thanks
When I built my 4.6 lump which is bolted to an LT77 there was no issue over the bush. You could always measure up the end of the shaft and the hole in the bush to check.

If you need to remove it a neat trick is to fill the hole with grease then find a loose but close fitting solid bar that you push into the hole then hit the bar a hammer. This has worked twice for me!

Pete

Posted: Thu Dec 11, 2008 7:53 pm
by Seight-V8
hiya,

just had this same issue, as i am building a 4.6efi and using the LT77.

The 4.6 spigot bush is about 19mm internal diameter and has a very thin wall.

The sd1 spigot bush for the LT77 is only about 12mm internal diameter, and has a thick wall.

They cost about 8 quid from rimmers, so i changed mine, otherwise the input shaft may have to much clearance when revving high.

scott

Posted: Thu Dec 11, 2008 8:59 pm
by ian.stewart
Seight-V8 wrote:hiya,

just had this same issue, as i am building a 4.6efi and using the LT77.

The 4.6 spigot bush is about 19mm internal diameter and has a very thin wall.

The sd1 spigot bush for the LT77 is only about 12mm internal diameter, and has a thick wall.

They cost about 8 quid from rimmers, so i changed mine, otherwise the input shaft may have to much clearance when revving high.

scott
Spigot bushes are only used when the clutch is depressed, and unless you are doing 6k launches rarely see much in the way of 3k when launching hard.

Posted: Sat Jun 30, 2012 10:53 am
by timnutt
Hi,

I've read (and seen a U-tube video) of how to get the bush out by packing with grease and then using a hammer on a piece of bar. I'll take your word that this works, but where am I going to find a 19mm bar that fits - I've searched the whole garage and everything is either to small or too big. How close fitting does it need to be, cos if it's to small I'm gonna get covered in gease ;-)

Any ideas?
Thanks
TimN

Posted: Sat Jun 30, 2012 11:41 am
by DEVONMAN
Use a bar which is slightly smaller and wrap insulating tape around it to get it to the correct size. Clean the bar before you apply the tape.

Regards Denis

Posted: Sat Jun 30, 2012 11:54 am
by timnutt
Great idea!
Now why didn't I think of that...
I'll give it a go and let you know how I get on. I might video the mess just for a laugh ;-)

Thanks!

Posted: Sat Jun 30, 2012 12:16 pm
by DaveEFI
timnutt wrote:Hi,

I've read (and seen a U-tube video) of how to get the bush out by packing with grease and then using a hammer on a piece of bar. I'll take your word that this works, but where am I going to find a 19mm bar that fits - I've searched the whole garage and everything is either to small or too big. How close fitting does it need to be, cos if it's to small I'm gonna get covered in gease ;-)

Any ideas?
Thanks
TimN
A bit of wood dowel will work too - easier to reduce the size if too big.
Most DIY sheds sell it in various diameters.

Posted: Sat Jun 30, 2012 2:02 pm
by timnutt
Also a good idea- I feel a bit daft now asking ;-)
Anyway it worked! I have to say it was very counter intuitive to hammer something in to make something come out.

New bush is chilling in the freezer for a while before tapping it home.

Thanks again guys!
TimN

Posted: Sat Jun 30, 2012 3:58 pm
by DaveEFI
No such thing as a daft question. Doesn't apply to answers, though. :D

Posted: Sun Jul 01, 2012 6:44 am
by unstable load
If you have clearence issues with the bar and grease is squirting everywhere, you can also use wet newspaper in place of grease.

Posted: Sun Jul 01, 2012 5:01 pm
by SimpleSimon
Use one of these makes the job a piece of p*ss Image Works every time 8-) although i have not had to use this method for years (internal bearing puller) 8)