Mike Downs wrote:
>
> Hi, my wife has a 73 super beetle and we,ve had a problem with gas
in
> the oil! we've had the carberator changed twice and it seems to
> solve the problem for awhile. Well it has started to happen again,
> can some out there tell me what is going on, how can this be
> happening? any help would great. I feel we are just wasting money on
> something that,s not curing the problem. Thanks
> Mike Downs
>>>>>> FROM Sean : Yeah only 2 way,s ta get gas in the oil ? Flooding
, or runnin 2 rich ? I have never seen a fuel pump on a buggy that
would cause this ? <<<like ifn the diaphram started leaking it would
wash down into the motor ? <<, Think this is an impossible scenario
on bugg,s ? But i have seen fuel pump pressure,s so high that the
fuel can force itself past the carb check valve . <<, This is pretty
common problem fuel pump pressure too high ? Try setting the fuel
pump pressure . Way i do it is i use the 1.99 plastic see thru
inline fuel filter,s from Auto zone. <<,This filter should be 1/4 ta
1/2 full the 3/4,s full being a lil bitt on the high side ? Best ifn
they runn 1/4 ta 1/2 full but in the winter they tend ta runn with a
lil bit more in um . too reduce fuel pressure on a mechanical pump
you simply addd gasket too the fuel pump wich shorten,s the fuel
pump actuator rod stroke ? Warning >>the fuel pump sitt,s on a metal
rod housed in a pedestal type houseing if you pull fuel pump off
then pull the houseing with out removeing this actuator rod. <<<
This rod spiral,s off down inside the engine case never too be seen
again ? << Like as in have too splitt the case ta gett it back ? So
pay attention pull the rod out afore you pull the pedestal out . You
can grind some off the rod too reduce fuel pump pressure ? << But
not reccomended ? Your better off ta look the pump itself over ,
Especially the actuator shaft in the fuel pump . << These tend too
loose there cir- clipp,s and the shaft too come partly out , cocking
the actuator too one side , <<Increaseing the actuator travel ,
therefore excessive fuel pump pressure. Also ya wanna be aware that
there are 2 different type,s of fuel pump,s and actuator rod,s ?
Short one,s for altenator,s and longer one,s for generator type
motor,s / Very common mistake made here is mixin the short rod with
a long pump / Longer rod with a short pump usually result,s in
busted pump? Only other thing that could cause gas in the oil that i
can think of here is an extremely rich condition , or incomplete
combustion ? But im pretty certain im probably right on fuel pump
pressure ? Lott,s of people runn inline filter,s before the fuel
pump ? <<,,This is wrong ? Fuel filter need,s too be between the
pump and the carb .B ut note that the reason people are usually
runnin the filter afore the pump is usually due too fact that there
getting a lott of trash out of the fuel tank itself. <<,Meaning it,s
a feeble attempt at cureing a fuel tank problem ? So there ya go .
Lett me know ifn im right or wrong on this ? If im wrong we can
trouble shoot the carb. Sean