[Vwdiesel] Still fighting my IP

[Val Christian]

I agree with Roger's suggestion, and urge you to consider it.  Also consider
a little heat, perhaps just the increment of 100 degrees to the shaft of the 
IP.  If the pump isn't leaking, I would do it with a soft flame with a 
spark ignite propane torch.  That little bit of expansion may help things
free up.  

Also I would lube the area with a very light penetrant, such as the Liquid
Wrench classic formula.  Just a drop around the sprocket.  After the gentle
heat.

Using something small like a tack hammer works just fine.  If it was a front
end part, perhaps a 3" hammer, but for an IP, just something to set up some
sonic action.  

(BTW, for tapered tierod ends, a hammer to the side does wonders.)

If you can avoid destroying the sprocket, I would prefer that.  Afterall, it
has a good fit.  (grin)



> 
> What I have found helpful with pulling stubborn pitman arms from steering boxes is to put 
> a puller on, tighten it up and let it sit under tension.  Then hit with a hammer a few 
> times, and re-tension the puller and repeat the hammer from time to time.  It may take 
> most of a day for it to pop loose.  One time I did this after breaking a heavy pitman arm 
> puller and resorted to using a rather light weight 2-arm puller.  Let that on for most of 
> the day and had to re-tighten it multiple times along with the hammering and that arm did 
> eventually slide off when I went to re-tighten the puller the last time.
> 
> 
> On 1/27/2012 9:20 AM, Val Christian wrote:
> > Wedges?  Tapping them and perhaps heating the sprocket slightly?>
> >>
> >> Two plus days of fighting with this injection pump. Well off and on but still running out of ideas. I just can't get the cog pulley off. On this Kubvan there is only two inches between the pulley and the side panel. I tried going from wood wedges to home made puller and than onto more violent methods but the dang thing will not release. I know the pump must have been off once before by a PO as the retaining bracket for the inner and lower mounting bolt was not under the rear bolt. I guess the shaft/pulley bolt was over torqued and this thing is really planted on the taper.
> >>
> >> I made a puller and was able to really put some pulling pressure on it and took a long punch and hammer to a flat on the bolt still not budging.
> >>
> >> Even if I pulled the motor the only change in attack would be a straight hit on the drive shaft. I have already beat up the pulley so bad I'll need the spare I have. I also think heat is not an option as the idea of using a torch in a tight area on a diesel soaked pump. At this time pump and pulley are disposable.
> >>
> >> Any other ideas?
> >>
> >> TIA - Terry
> 
> 
> -- 
> 
>    Roger
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