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Overhaul of WEBER #4 … Accel. pump could be removed, but… (The original blog was written on 9th Sep. 2007)

Again it was continuation of the WEBER overhaul.
I tried the engine conditioner to melt the sticking accelerator pump.  Based on the structural drawing on the manual and the fact that the acceleration pump rod could be moved slightly, I guessed the piston was sticking.
I sprayed the engine conditioner a lot, which was normally used to melt the carbon inside the cylinder, on the accelerator pump piston and rod, then went for a walk with my dog.  After 2 hours walk I tried to remove them.  I expected success this time, but it failed…

So I changed my strategy.  I inserted the screw driver in the upper part of the acceleration pump and pulled up it carefully using the screw driver as lever.  It removed!?  But actually only the rod was removed because the hook shape at the top was deformed…oh my god!  The piston was still sticking.  I’ve got desperate and put the radio pliers in the WEBER.  I grabbed the piston with pliers and twisted left and right, then, finally the piston could be removed!


I corrected the deformation of the rod, but I thought it would be destroyed soon.  So I started to look for the new one.  I remembered there was a shop for the classic Mini and they were selling some parts for WEBER.  I called them and got the answer that they could prepare the part in 1 week.  I was looking forward to going the shop to pick up my part because I also liked Mini.

Anyway the sticking acceleration pump was removed and it made me very positive.  I started the cleaning of the WEBER.  
I started from the engine conditioner because it seemed very effective to remove the dirtiness.  I splayed the engine conditioner a lot on the WEBER and wrapped it by wrapping sheets.  
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After leaving 2 hours with that condition, I opened it.  Then, the 20 years dirtiness became soft and could be removed by brushing.  However, because there was so much dirt, the brushing took time and the dirtiness seemed to become harder again.  


Therefore, I moved to the next ‘kerosene bath” operation!  I put the WEBER in the plastic box I bought at 100Yen store and filled it with kerosene.  WEBER looked very comfortable and relaxed in the bath!  I put another WEBER in the washbasin filled with kerosene in same way.  



Then, probably the dirtiness was already melted by the engine conditioner, the kerosene became black in a very short time.  I was surprised at the dirtiness of my WEBER!  I brushed the WEBER in the kerosene and found that the dirtiness could be removed easily.  


It seemed this method was very effective and I wanted to continue it, however, I had to stop it for dinner time.  This day’s work ended here.
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