Heater cab duct flap trunnion.

Wolf Pack · Apr 11, 2024

Morning All,

I'm reconditioning my heater and trying to remove this trunnion from an old donor heater that I have.

2 x 7mm spanners and it's not moving.

Anyone ever managed to get one off, or are they fixed in place somehow?

tottot · Apr 11, 2024

In a captive nut? Heat is your friend. Blast with blow lamp will often free.

Wolf Pack · Apr 11, 2024

Yes, the MAPP is my first call, but I don't want to use gas so close to the foam sealing pads on the flaps.
It's now soaking in paraffin.

Hicap phill · Apr 11, 2024

Wolf Pack said:
Yes, the MAPP is my first call, but I don't want to use gas so close to the foam sealing pads on the flaps.
It's now soaking in paraffin.

That washer will prise off so you only have the metal work to heat. Washer is pressed on the shaft
Mark the orientation of the arm & remove

Wolf Pack · Apr 12, 2024

I only want the trunnion out, not the arm off the shaft.
I'm scavenging it for my nearly-new heater that will be fitted shortly.

tottot · Apr 12, 2024

Well in that case do what @Hicap phill says above, then put arm back after. NOT rocket science.

Heater cab duct flap trunnion.

Wolf Pack

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