Mercruiser Carb Conversion
 

Does anyone know if their is a throttle body conversion kit available
for my old Merc 170?

Thank you

Jim Rojas

Mercruiser Carb Conversion
 

I've never heard of one. I would expect any carb to fi conversion to cost 4
digits. There is not a big market for them due to the cost. While fi is
better than a carb, it is not a lot better. Why do you want to convert? A
brand new carb will cost a fraction of a conversion.

"Jim Rojas" wrote in message
news:LJFOj.2595$Ux4.830@trnddc07...
Does anyone know if their is a throttle body conversion kit available for
my old Merc 170?

Thank you

Jim Rojas

Mercruiser Carb Conversion
 

"jamesgangnc" wrote
A brand new carb will cost a fraction of a conversion.

A rebuild kit would be a fraction of that fraction, even. If I'm not
mistaken, this is the same Merc where the owner added an electric water pump
when he couldn't get the stock pump to work. I'm beginning to detect a
pattern.

Mercruiser Carb Conversion
 

Yeah...that I am an idiot... :)

The electric pump works great! I had to install a relay to activate the
pump. The relay is hooked up in parallel to the electric choke circuit,
so it will turn on/off when you turn the key.

Last year I replaced the stator with a standard alternator conversion
kit for $400. I figured if they have conversion kits for the points,
fuel pump, and loads of other items, why not ask?

Ok. I will just buy a carb rebuild kit and give it a shot.

Thanks

Jim Rojas




Ernest Scribbler wrote:
"jamesgangnc" wrote
A brand new carb will cost a fraction of a conversion.

A rebuild kit would be a fraction of that fraction, even. If I'm not
mistaken, this is the same Merc where the owner added an electric water pump
when he couldn't get the stock pump to work. I'm beginning to detect a
pattern.

Mercruiser Carb Conversion
 

"Jim Rojas" wrote in message
news:pBJOj.1591$pn4.872@trnddc03...
Yeah...that I am an idiot... :)

The electric pump works great! I had to install a relay to activate the
pump. The relay is hooked up in parallel to the electric choke circuit, so
it will turn on/off when you turn the key.

Not such a good idea. You need to buy a oil pressure switch and power the
fuel pump from it. You also need to pull power from the starter solenoid S
terminal to run the pump while cranking the engine. I hope your electric
fuel pump is of the Coast Guard approved variety.

Mercruiser Carb Conversion
 

I didn't replace the fuel pump, and don't have any plans to.

The choke circuit only activates the 30A relay. The pump itself is on a
separate 20 amp fuse on the battery selector switch.

I installed a temporary garden hose 2 way splitter on both ends of the
water pump. On the in side, one hose goes to the raw water inlet, the
other goes to a short hose to allow quick connection for flushing in my
driveway. On out side, one hose goes to the heat exchanger, and the
other goes to a 1/4 hose reducer that acts like a weep hole on an
outboard or jetski. This allows a visual indication at all times that
the electric pump is working.

Jim Rojas



Jim Rojas


Jim wrote:

"Jim Rojas" wrote in message
news:pBJOj.1591$pn4.872@trnddc03...
Yeah...that I am an idiot... :)

The electric pump works great! I had to install a relay to activate
the pump. The relay is hooked up in parallel to the electric choke
circuit, so it will turn on/off when you turn the key.

Not such a good idea. You need to buy a oil pressure switch and power
the fuel pump from it. You also need to pull power from the starter
solenoid S terminal to run the pump while cranking the engine. I hope
your electric fuel pump is of the Coast Guard approved variety.

Mercruiser Carb Conversion
 

Sorry. Carry on. When you said electric pump, I was thinking fuel pump. The
only caution I can think of is that the pump you are using might jam or clog
If it wasn't designed to pump dirty water.

"Jim Rojas" wrote in message
news:nISOj.1538$Ks1.1380@trnddc01...
I didn't replace the fuel pump, and don't have any plans to.

The choke circuit only activates the 30A relay. The pump itself is on a
separate 20 amp fuse on the battery selector switch.

I installed a temporary garden hose 2 way splitter on both ends of the
water pump. On the in side, one hose goes to the raw water inlet, the
other goes to a short hose to allow quick connection for flushing in my
driveway. On out side, one hose goes to the heat exchanger, and the other
goes to a 1/4 hose reducer that acts like a weep hole on an outboard or
jetski. This allows a visual indication at all times that the electric
pump is working.

Jim Rojas



Jim Rojas


Jim wrote:

"Jim Rojas" wrote in message
news:pBJOj.1591$pn4.872@trnddc03...
Yeah...that I am an idiot... :)

The electric pump works great! I had to install a relay to activate the
pump. The relay is hooked up in parallel to the electric choke circuit,
so it will turn on/off when you turn the key.

Not such a good idea. You need to buy a oil pressure switch and power the
fuel pump from it. You also need to pull power from the starter solenoid
S terminal to run the pump while cranking the engine. I hope your
electric fuel pump is of the Coast Guard approved variety.

Mercruiser Carb Conversion
 

It's a standard utility pump I pick up at Harbor Freight. It was only
$40. I can always replace it with a continous duty model at a later
time. It is cheap enough to carry a spare, or replace it every year.
Heck, an impeller kit is $40 anyway. This setup would only take several
minutes to change out if the pump fails.

Jim Rojas


Jim wrote:
Sorry. Carry on. When you said electric pump, I was thinking fuel pump.
The only caution I can think of is that the pump you are using might jam
or clog If it wasn't designed to pump dirty water.

"Jim Rojas" wrote in message
news:nISOj.1538$Ks1.1380@trnddc01...
I didn't replace the fuel pump, and don't have any plans to.

The choke circuit only activates the 30A relay. The pump itself is on
a separate 20 amp fuse on the battery selector switch.

I installed a temporary garden hose 2 way splitter on both ends of the
water pump. On the in side, one hose goes to the raw water inlet, the
other goes to a short hose to allow quick connection for flushing in
my driveway. On out side, one hose goes to the heat exchanger, and the
other goes to a 1/4 hose reducer that acts like a weep hole on an
outboard or jetski. This allows a visual indication at all times that
the electric pump is working.

Jim Rojas



Jim Rojas


Jim wrote:

"Jim Rojas" wrote in message
news:pBJOj.1591$pn4.872@trnddc03...
Yeah...that I am an idiot... :)

The electric pump works great! I had to install a relay to activate
the pump. The relay is hooked up in parallel to the electric choke
circuit, so it will turn on/off when you turn the key.

Not such a good idea. You need to buy a oil pressure switch and power
the fuel pump from it. You also need to pull power from the starter
solenoid S terminal to run the pump while cranking the engine. I hope
your electric fuel pump is of the Coast Guard approved variety.

Mercruiser Carb Conversion
 

"Jim Rojas" wrote
Yeah...that I am an idiot... :)

Sorry if that's what I implied, not really what I meant to say.

Mercruiser Carb Conversion
 

No offense taken. I am just glad to see people in this newsgroup willing
to help.

Jim Rojas



Ernest Scribbler wrote:
"Jim Rojas" wrote
Yeah...that I am an idiot... :)

Sorry if that's what I implied, not really what I meant to say.