High altitude compansator BROKEN???? (1 Viewer)

[EsbenDenmark]

Is there anything in the HAC (High altitude compsator) that can wear out over time?

I ma asking as I have a lot of smoke in high altitude. It might just be normal, but is there anything I can check in the HAC?

 

[bj70bc]

the diaphragm might be done, i think thats all that is in there, but ive never looked
my 3b one looks pretty simple

 

[EsbenDenmark]

I just do not see a diaphragm on the 1hz?

 

[bj70bc]

i should say pneumatic bellows/gaskets/rubber i guess
thats prob whats in mine too

 

[EsbenDenmark]

i should say pneumatic bellows/gaskets/rubber i guess
thats prob whats in mine too

aah got it.. Maybe I should see if I can frind some replacement parts then.

 

[bj70bc]

there must be a test procedure, i assume vacuum on the one side of the bellows
there is probably a manual on this forum in the resources section somewhere for the 1hz injection pump

 

[Eurasiaoverland]

I replied to the other thread that you started regarding your rough running, suggesting a fuel supply issue. If the HAC failed, it would just lead to sea-level quantities of fuel going into the engine which would not explain your engine cutting out, putting out blue smoke and misfiring.