Petrol Engine Compartment Blowers.

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moresparks
Posts: 20
Joined: Fri Aug 08, 2008 9:30 am
Location: Targa 27

Petrol Engine Compartment Blowers.

Post by moresparks » Mon May 27, 2019 3:41 pm

Hi, Looking for comparisons regarding engine compartment blowers for petrol engines.
Whilst going through checks I assumed the blowers were working until I realised that 2 were not.
I have a late 80's early 90's Targa 27 with twin AQ171C engines. The compartment has 3 blowers and whilst fault tracing I found the blower controlled on the dashboard works fine. This extracts air no problem. There are 2 other blowers, one feeds air in and the other extracts and these weren't working. Tracing the wiring, the supply feed is fed via a relay, the relay "signal" wire is fed via the engine keyswitch with the take-off via the carburetor idle solenoids feed!!!
I have got all the fans now working as they should - but - this means that the "engine fans are on all the time.
I understand why and happy for this to continue, but just wanted to compare with other owners if yours are the same.
Thank you.

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