David, I have had a very similar problem and here goes. I have a 1500 with
a Weber DGAV carb, there are no emmissions left on my car and since your
hose runs straight to the carb I assume you do not either. My symptoms
were the same, the carb was soaked with oil, I couldn't figure out why. I
changed the entire engine out (I just happened to have a really great
engine and due to some other reasons I changed them) When I did the
problem stopped, except for a very, and I do mean very light trace of oil
(enough to create a small rainbow on the chrome filter cover) being blown
into the carb. After a little bit of research and talking to folks I
concluded that on my old engine I must of had some pretty serious blow by
on the valve guides and seals and this was blowing straight through to the
carb. This sounds like a mirror image of my problem. Looks to me that the
best answer is to fix those or at that point it is just as easy to do a
whole valve job.
Patrick Bowen
'79 Spitfire
At 01:40 AM 6/16/98 EDT, GatesDavid@aol.com wrote:
>Joe,
>
>Thanks for the quick reply as usual. I checked the hose going from the valve
>cover to the carb as you suggested. It did have a little oil in it, so I
>cleaned it real well and cleaned all around the air filter to be sure no oil
>was present. Then, I cranked it up (with air filter in place) and let it run
>for a minute or so. Upon removing the air filter, I found more oil around
the
>base of the air filter, but none in the hose from the valve cover. So, it
>must be comming from somewhere else.
>
>BTW, the carb is a Weber DGAV. I forgot to mention this earlier.
>
>David Gates
>1973 Spitfire 1500
>Hawaii
>
>
>In a message dated 6/15/98 6:12:48 PM Hawaiian Standard Time,
spitlist@gte.net
>writes:
>
>> David,
>> Check to see if the hose from the side of the valve cover gasket is
>> connected to the carb in such a way the it could be producing the oil.
>> I'm not that familiar with the setup, but it sounds like the most likely
>> cause. If it is, you might be having excess blow-by of the rings
>> allowing the pressure build up to blow oil into the carb. I have a
>> similar problem caused by having all the pollution systems removed from
>> my 1500 engine. But the iol just blows onto the engine since it isn't
>> connected to the carbs. If your car is equipped with an air pump, it
>> may be malfunctioning. I think the function of such a pump is to take
>> care ob crankcase pressure by pumping it out and into the carbon
>> canisters for relief. But there is so much about the later Spit
>> emissions systems that I don't know. (That's why I stick to
>> "Round-Tails")
>>
>> Best of luck,
>> Joe Curry
>
|