engine

[adib]

hi all, got a 92 fd and if i leave it standing for a day or so, when i start it up it sounds like a lawn mower for the first min or so.does this sound like water seals on way out, no white smoke from exhaust and not really lossing any water and it passed it mot today

[rx jamie]

maybe a missfire?

[Sidzrx]

My engine was like that when the water seals went, and then it got gradually worse. If you suspect the water seals take it down to the local garage and ask them to pressure test the coolant system

[AshRX]

check map sensor on bulkhead, plugs etc.

Mine sounded like that on my first FD and found out to be firing on 1 rotor only

[adib]

pressure test did not think off that and def sounds like its running on one rotor but only for a min or two and then its ok