Question for ROCHESTER quadrajet experts Mercruiser 5.0 5.7

[Wave thumper]

Here is a tricky one.

Can anyone tell me the sizes of the standard ROCHESTER quadrajet METERING JETs and rods used on the Mercruiser 5.0 or 5.7?

I am sure my Merc 5.0 is fitted with an automotive qjet and I want to ensure it is fitted with the appropriate metering equipment.

 

[Bondo]

Re: Question for ROCHESTER quadrajet experts Mercruiser 5.0 5.7

Here is a tricky one.

Can anyone tell me the sizes of the standard ROCHESTER quadrajet METERING JETs and rods used on the Mercruiser 5.0 or 5.7?

I am sure my Merc 5.0 is fitted with an automotive qjet and I want to ensure it is fitted with the appropriate metering equipment.

Ayuh,.... The meterin' rods are the Least of yer worries....

Automotive carbs on a boat are Explosion Hazards...

 

[series60]

Re: Question for ROCHESTER quadrajet experts Mercruiser 5.0 5.7

I am sure my Merc 5.0 is fitted with an automotive qjet and I want to ensure it is fitted with the appropriate metering equipment.

Does the carb on there now have a small clear hose running from the carb to the fuel pump? If not it is a auto carb. Get rid of it and get a marine carb. The hose is there to direct fuel from a leaking fuel pump diaphragm into the carb instead of into the bilge. BOOM!

 

[Howard Sterndrive]

Re: Question for ROCHESTER quadrajet experts Mercruiser 5.0 5.7

pretty sure all the jets and rod specs are in the Mercruiser manuals in the fuel system section for all models equipped with Q jets.

 

[Wave thumper]

Re: Question for ROCHESTER quadrajet experts Mercruiser 5.0 5.7

Thanks for the advice and the Explosion Hazards and Boom scare warnings.

I should add the boat has a Gasoline Fume Detector fitted.