BillL
Well Known Member
In 20 hours of flight #4 CHT has always been hotter. It does not seem that the GAMI test points to it being out of line A/F wise.
The #2 head was blocked and un blocked with zero difference to #4.
The oil shutter was operated full open and full closed, no change in #4 CHT.
The fin flashing under the plug was reduced and dropped the diff from ~35F to ~15-20F. All other heads are within a 2F bracket.
edit: Swapped the probes from 2 & 4 and the high temp became #2 high as it was now in #4 head.
Has anyone determined that the baffle flap wrapped over the fins in the picture below has any effect? I am thinking it is the only thing left and a bit tentative to just cut it off without and external stiffener. The trouble would be worth it if anyone has data it will have an effect, though.
Any experience with this in VAF land?
[ok I admit, 15-20F is not bad, it just has me stumped. I gots to know . . ]
The #2 head was blocked and un blocked with zero difference to #4.
The oil shutter was operated full open and full closed, no change in #4 CHT.
The fin flashing under the plug was reduced and dropped the diff from ~35F to ~15-20F. All other heads are within a 2F bracket.
edit: Swapped the probes from 2 & 4 and the high temp became #2 high as it was now in #4 head.
Has anyone determined that the baffle flap wrapped over the fins in the picture below has any effect? I am thinking it is the only thing left and a bit tentative to just cut it off without and external stiffener. The trouble would be worth it if anyone has data it will have an effect, though.
Any experience with this in VAF land?
[ok I admit, 15-20F is not bad, it just has me stumped. I gots to know . . ]
Last edited: