[Fot] 1147 Crank Seal

[Brad Kahler]

Herald948 at aol.com wrote:
> In a message dated 9/5/2007 8:37:25 P.M. Eastern Daylight Time,  
> jaxonracing at yahoo.com writes:
>
> I  have located and purchased an 1147 crank for my race car, there is a  
> difference from the crank I had before in that on the flywheel end of the  crank 
> there is a "scroll" (looks like threads so as it rotates it returns oil  back 
> to the block) in the fat end.  It appears that this design would  "sling" the 
> oil back into the block, but I am not sure of the purpose.   
>
> My question is, does this type of crank design use  the same rear seal as the 
> crank without the "scroll"??? Or do I need a  different type of seal??
>
>
> Jay, others will, I'm sure, be able to give you much more detail, but it  
> sounds like the crank you got is the earlier type and does indeed have the  
> "scroll" to fling the oil back into the engine. If I remember correctly,  it has -- 
> instead of an oil seal and its housing -- what the  spare parts catalogue 
> calls the "oil retaining cover -- rear." I also recall  that this crank was used 
> until fairly late in the Mk2 Spitfires, then the later  crank was used through 
> the early 1296 "small journal" blocks.  
>
>   
One thing to add to Andy's post is the 1147 crank will work in a 1296 
engine just fine.  All you hae to do is install a Speedi-Sleeve part 
number 99287 from either National or CR.  We're currently running an 
1147 crank with a Speedi-Sleeve installed in Susan's race car.  Works 
just fine!

Brad