RE: [T3] Number 4 issues..

[Dave Sanderson <porschedave@rennlist.net>]

<x-flowed>Hi

We got our blown engine apart and it was a mess. However, it was the  
number 1 rod that let go not the # 4 that everyone else seems to have  
experienced. We're thinking that the engine must have overheated  
because those little flaps on the back of the cooling fan did not  
open. We're not 100% sure about that but have no other explanation  
unless the parts I used to build the engine were not as good as I  
thought. The case appeared to be fine and the machine shop said that  
they didn't think it needed boring. The crank had been reground 0.020  
with all new bearings etc. So, my best guess is the engine simply got  
too hot. We're now thinking, when we build the next engine, that we  
will remove those flaps completely. We live in the Pacific Northwest,  
Vancouver B.C., where it never gets that cold and so we probably  
don't need those flaps. Maybe the engine will simply run a bit cooler  
all the time. Does that make sense to you?

Dave

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