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Flame trap issues??

Hi Guys,

So okay, I finally got my 740 gle started today. It's running a little rough though, and there is a steady flow of smoke from the outputs of the flame trap that connect to the intake hose (pre-throttle body), and the intake manifold (just post-TB). When they are disconnected, the engine runs like a top, when they are connected the idle is sporadic, and there is some hesitation at speeds. I just cleaned the flame trap itself, is there something else that should be cleaned or checked? A breather box or something?

Thanks again,

Zeke

Reply to
Zeke
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If you do not have a turbo fitted to your car you will need to replce the filter in the flame trap and thoroughly wash out the two pipes (large and small) and the spigot the small hose fits onto on top of the manifold. This should free up the obstruction in the PCV system. A kit is sold that lengthens the pipe from the oil recuperator to the flame trap which puts the trap above the manifold making it easier to reach.

All the best, Peter.

700/900/90 Register Keeper, Volvo Owners Club (UK).
Reply to
Peter K L Milnes

I was told to replace the whole breather box assembly, but what I did was replace the flame trap assembly (trap filter, small tube and nipple), then clean the breather box thoroughly with degreaser, hot soapy water and rinse clear.

I have read successes with cleaning, but most recommend spending the $35 and get a new breather box and flame trap assembly.

Reply to
Jamie

Thanks guys, I'm off to the local Volvo dealer. Just a thought, dealerships get a bad rap, but are sometimes even cheaper than IPD, or some of the other mail order houses. Plus sometimes you don't have to wait for delivery.

Happy motoring, Zeke

Reply to
Zeke

Oooh, that's going to be about $20 plus more than somewhere like VLV World. If possible, I would order online unless you're in a hurry.

Reply to
Jamie

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has really great prices, but do not carry this part.

Reply to
Zeke

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