Mounting / electrical ?s - non-VRO pump for 1989 70

[tedious]

I am replacing the fuel pump on my 1989 70 - the oil line on original VRO2 pump has been capped off for years, and I am suspicious of diaphragm problems, so I have acquired the non-VRO pump, p/n 438559, based on advice from this forum. I have some questions as I start to tear into the job:

- is there a way to re-use the original VRO2 pump mount, that bolts to the intake manifold? Otherwise it looks like I'll need to fabricate a mount, as the new pump is quite different.

- what do I do with the electrical connection from the old pump - just tape it up and leave it? Or do I need to jump something to keep the alarm from going off?

- is the pulse hose just a regular piece of 5/16 fuel line? Or is it something extra-rigid to keep from collapsing under the vacuum?

- do I need to remove the pulse limiter fitting? I understand that I don't really need it with the non-VRO pump, but will it do any harm?

Thanks for input from people who have done this before.

Tim

 

[freetime99]

Re: Mounting / electrical ?s - non-VRO pump for 1989 70

I'm looking at doing the same procedure. You raise some very important questions. I'd like to know those answers as well.

 

[Anchor Management 1]

Re: Mounting / electrical ?s - non-VRO pump for 1989 70

Thre is a bracket you can buy to mount to fuel pump.And the electrical connection just tie rap it out of the way.

 

[tashasdaddy]

Re: Mounting / electrical ?s - non-VRO pump for 1989 70

you can also screw a plate on the back of the air silencer, and mount the pump to it.

 

[freetime99]

Re: Mounting / electrical ?s - non-VRO pump for 1989 70

Let's assume that the bracket problem gets solved, shouldn't be too hard. BIG QUESTION : Will the "QuickStart" feature still function in the same manner?? The service manual on this motor says that : "mixture enrichment for cold starting and running is provided by a solenoid operated fuel primer valve. When activated at the key switch, the valve diverts some VRO output directly to the intake manifold."

 

[kenmyfam]

Re: Mounting / electrical ?s - non-VRO pump for 1989 70

Here's what I did for an adapter plate.

http://forums.iboats.com/showthread.php?t=265363&highlight=now+pre+mixer

 

[freetime99]

Re: Mounting / electrical ?s - non-VRO pump for 1989 70

Any opinions on whether the " QuickStart " feature will still function after the VRO to fuel pump conversion ?

 

[tedious]

Re: Mounting / electrical ?s - non-VRO pump for 1989 70

Thanks for the mounting pics - I'll be able to make a mount easily enough.

To previous poster, the pump output line is plumbed to the carbs and to the primer solenoid; it's the same for VRO and non-VRO pumps. Not a problem.

Tim