VLG archive · Message 533

Re: [VintageLambo] Re: Smelly Espada

Author: Dennis Briddell

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Actually I was refering to the fresh air inlet for the engine...the PCV allows blow-by gasses to be combusted, but where is the fresh air drawn in? Dennis Jack Riddell wrote: > > Hi Dennis, > > Are you referring to an air inlet to the air conditioner motor? If that is the one you mean, the answer is no. The A/C that came with my car is a Borletti system that uses and American compressor (soon to be replaced by a Sanden unit). It uses a pair of squirrel cage blowers driven by an electic motor and simply recirculates the air inside the car. On the other hand, there are two outside air inlets on the 400"s on either side just forward of the windshield that will allow fresh outside air into the cabin area. I usually leave them open until the A/C gets cold then shut both sides. > > B/R, > > Jack > > Dennis Briddell wrote: > > > Jack, > > I"m curious, is there air inlet to the motor? > > > > I had to device a breather system on my QV when the airpump and associated mounting bracket was scrapped for the Motec. > > Dennis > > > > > Jack Riddell wrote: > > > > > > Hi Doc, > > > > > > Welcome back. Hope the vacation was excellent. Your observations about the smell in Espadas also applies to the 400 GT cars. I fought that battle for years and came up with the same conclusion about the pressure differentials causing the suction into the passenger area via the poorly seal rear of the car. I did pretty much what you have been doing - plugging leaks, and it helps, but I never completely cured the problem. The only sure way to eliminate the exhaust odor is to close up the car and run the air conditioner. That creates enough positive internal pressure to keep out the fumes. > > > > > > As to the PCV issue, I ran into that problem some years ago when California decided that my car needed a positive crankcase ventilation system in spite of the exemptions the state had granted these cars when they were originally imported. So I asked Bill Stewart and he showed me a method he had devised that seemed to work well and satisfied the smog people. You run hose from the breather tube (pictured below) to a Pep Boys PCV valve and then to a fitting on the back side of the air cleaners. I used commonly available brass hose fittings to do the job. It eliminated the vapor smell from the engine immediately. That was probably 10 years ago and the system is still working great. > > > > > > [PCV Drawing] > > > > > > Best Regards, > > > > > > Jack > > > > > > docmirror wrote: > > > > > > > Hi guys, I"m back from vacation. didn"t buy anything in Fl, but had a > > > > good time. > > > > > > > > As for the smelly car issues, I think Laust is right about the vacuum > > > > in the cabin. I believe it"s caused by the louvered roof vents at the > > > > back of the roof which are there to "remove stale air and smoke" from > > > > the pass cabin(from Espada owners manual). Adding to the problem is > > > > the open air passage to the rear compartment, coupled with the poor > > > > seal around the tail lights which are directly above the exhaust > > > > exits. Knowing a small bit about air flow, there is an area of low > > > > pressure created over the roof which will suck air from the top vent > > > > while under way. > > > > > > > > My car has the same crankcase vent as all early Euro cars, namely that > > > > the tube goes down near the front of the engine and vents to air. > > > > There is no carbon recovery of fuel gasses, most cars have some, or > > > > many worn wind seals, and the cars run rich to boot. > > > > > > > > Well....It"s no wonder they smell! I"m going to tackle this by several > > > > ideas. First, I want to find a way to recirculate the crankcase gas > > > > into the intake. Haven"t figured a clean way to do it yet, without > > > > cutting into the air cleaner box, but I might just have it discharge > > > > at the front air horn pickup. > > > > > > > > Next, I"ve removed the rear lamp<

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