L20B engine in Hovercraft

[Lockleaf]

The oil pressure sending unit on these motors is British Pipe thread I believe. Someone correct me or back me up on that though.

[Draker]

Yes, I believe that is correct. It's a pipe thread for sure.

[hovercraft]

How did you hook yours up then?

[Draker]

All my fittings were pipe threaded. Meaning, the actual threads are a tapered fit.

[Draker]

I wouldn't be surprised if your oil pressure sender is pipe threaded as well. Just try it.

[hovercraft]

If you go back on page two there's a picture you can zoom into of the motor and see there's a sensor on the motor between the oil tube and the filter. Is that where it goes ?

[flatcat19]

If you go back on page two there's a picture you can zoom into of the motor and see there's a sensor on the motor between the oil tube and the filter. Is that where it goes ?

Yes. What you currently have is for the oil light on out dashes.

[datzenmike]

Oil pressure sender is 1/8" BPT. All you need is a lamp and a 12 volt source. Sender grounds below 8PSI.... light come on. Get a 720 4x4 sender and a 720 4x4 gauge set. This gives you battery voltage and oil pressure gauges. 

 

Temp sender goes into thermostat housing.

[Lockleaf]

Stock 720 4x4 has an oil pressure sending unit that operates both a gauge and the idiot light. The gauges are independent 2" gauges that can be put anywhere. I'm running that and the companion volt meter in my 510 and also in my 240sx (and my 720, but it came with them).

 

I like them because they also match the other gauges well and look stock.

 

These are the gauges.

 

 

The sender is the gold can right behind the filter.

 

 

Seen again here in the middle.

 

[datzenmike]

Yes!!

 

Those will mount just about anywhere too.

[bilzbobaggins]

I will get your picture up in the morning. I can't use this Gd phone till it gets z patch so I can cut and paste again. The patch is out but won't work on my phone. Jesus wept Last fruit phone I buy

[hovercraft]

What kind of car would have a radiator fill tube ?

[datzenmike]

I think some have an in line rad cap in the top hose

[hobospyder]

but what kind of car is that mike?

 

i've only dealt with the cap being on either the reservior or the radiator, never on a line

[Lockleaf]

2002 dodge Durango. 1 5/8 inch hose diameter.

 

Called a "coolant filler neck"

 

Oreillys part number mry 85324.

 

 

 

 

[bilzbobaggins]

[hovercraft]

It has a 2 wire hitachi alternator. When I hooked it up my battery voltage read 16.7 is that right

[Lockleaf]

High 14s is the highest you should be seeing at.  Usually between 13.5 and 14.5 volts is what you want to see.

[hovercraft]

What do I need to do differently ?

[Lockleaf]

My first guess would be voltage regulator issue. Is it an internally or externally regulated alternator?

[Draker]

What do I need to do differently ?

 

I'd get a Saturn alternator, or KA alternator. They are both easy to find and are both internally regulated.

[hovercraft]

The battery I was using I had to jump before I started it. Would that have any effect?

[Draker]

The battery I was using I had to jump before I started it. Would that have any effect?

 

No, it would only charge to slightly over 12v. Sounds like you are running an externally regulated alternator without the regulator. I'm guessing you wouldn't an external regulator on the craft.. but if you did you could get one dirt cheap. More stuff to mess with though.. more wires.

[hovercraft]

How would I wire regulator up

[Draker]

Just like this diagram minus the two jumper wires.