Long story ... several years ago I had to replace my diesel fuel line because it started to crack ... this was the second time ... but this time it only cracked in the engine compartment. Seemed to be really hot in the engine compartment.
I noticed another J30 had both vents facing forward ... then I looked at another J30 that had both facing the back. So I looked at the "dryer hose" that is used in the engine compartment and both of the hoses in my engine compartment ended up on the floor.
They originally used cable ties to hold the port vent tube at the top of the engine compartment to draw out the hot air. But 20+ years later those plastic cable ties are shot and break which dropped the vent tube to the floor.
It seems to me that the port vent is the hot air vent and should vent out toward the back.
The Starboard vent looks like it just goes into the space behind the engine panel ... then a dryer vent tube seems to run from the bottom of that compartment up to the top of the engine compartment and back down to the floor of the engine compartment.
It seems to me that this starboard tube is supposed to be the supply side of the ventilation. As such the starboard vent should face forward.
I did a quick run after I set it up as above and it seems that underway, I actually get warm air out of the port vent. Didn't work that way before.
Obviously when both tubes are at the bottom of the compartment there is no circulation.
Something for you guys to check out.
Vic #505
