1998 merc 5.0 oil pressure switch location

[rskeeters]

My 1998 5.0 TBI starts then dies. I ran it yesterday, the boat ran great for 45 min or so then stumbled a couple of times and died. The boat will start then die immediatly. I would like to check the oil pressure switch, but I have not been able to find it
Thanks in advance

 

[maxxman04]

Re: 1998 merc 5.0 oil pressure switch location

typically found on backside, top of engine block, a little to port side. might check fuel pressure as well. "adults only" sticky has all sorts of troubleshooting tips.

 

[cooter2506]

Re: 1998 merc 5.0 oil pressure switch location

Maxxman is right should be right above oil filter. It will have two wires to it

 

[rskeeters]

Re: 1998 merc 5.0 oil pressure switch location

I found a switch just to the port side of the distributor, comes out of the block vertical on a 90 degree elbow but it has only one wire to it purple w/ pink.

1998 Sea Ray 210 Select
Mercruiser 5.0 TBI Engine Sn# 0L058889

Again Thanks

 

[maxxman04]

Re: 1998 merc 5.0 oil pressure switch location

i'm not 100% familiar or sure about your boat, you might be able to find a manual to download in the "ADULTS ONLY" sticky at top of this forum, but it sounds like that's it. however, generally there is a couple wires coming off it. if you can, take a look on the port side of block, down on the side itself, near the oil filter, or where the filter would be in case you have a remote oil system. some engines both marine and automotive use two oil senders. one for the computer/ignition and one for the gauge. this may not be the case for you. a manual will confirm this. hope this helps.

 

[rskeeters]

Re: 1998 merc 5.0 oil pressure switch location

Thanks I will take a look. I have a seloc manual, but have been unable to nail down specifics. I have been looking for an oil pressure switch with two wires I am starting to wonder if it exists in my case? The Mercury manuals are no longer available in the sticky. All help is appreciated.

 

[maxxman04]

Re: 1998 merc 5.0 oil pressure switch location

www.themotorbookstore.com/mersterdrivr.html

might take a few days for shipping, but you'll have it in hand.

 

[AJAugust]

My 1998 5.0 TBI starts then dies. I ran it yesterday, the boat ran great for 45 min or so then stumbled a couple of times and died. The boat will start then die immediatly. I would like to check the oil pressure switch, but I have not been able to find it
Thanks in advance

I have the exact same condition on 1998 Sea Ray 5.0 Alpha 1 210 Bowrider, Carburetor. This thread will likely be a real help as I dive into solution(s).

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