Having problems identifying Mercury

swimmin' for shore · Nov 8, 2009

I have a mercury sitting here that I've been strugling to identify. No serial number, and no numbers stamped on a freeze plug. I think I've narrowed it to 78 or 79 and it's supposed to be a 150. The cowling has stickers that say Blackmax and XR-6. It's a V-6, has 2 switchboxes instead of one. It has 3 double-barrel Mercarb carburetors that are stamped with 1374-5427. Can anyone help with this?

lprizman · Nov 8, 2009

Re: Having problems identifying Mercury

any pics of the shell and motor?

swimmin' for shore · Nov 8, 2009

Re: Having problems identifying Mercury

I wish I could. I have the whole thing but it was in boxes. I have all of the parts, I believe. I've been given a puzzle but without that box that shows the picture, that puzzles usually come in.

I can provide any number that you ask for if it's on the parts or the motor. The block and exhaust housing are still together. Everything else is apart. The heads have a stamped number of 1026 5189 on them. The carbs are mercarb and the mercarb n umber is 1374-5427. There are 2 switchoxes, as I said. What else can I do for this?

Faztbullet · Nov 9, 2009

Re: Having problems identifying Mercury

Do you have the midsection? If so is trim motor mounted in between clamp bracket or does it just have to hoses and a single cylinder? The carb numbers posted have been used from 1978-92 , the WH# is the difference stamped into casting. Also check the block behind crankcase flange as year is stamp into block there. (example: 10-25-88= oct 25 1988)

Dukedog · Nov 9, 2009

Re: Having problems identifying Mercury

Is this " Mercarb " actually on tha carbs?

swimmin' for shore · Nov 9, 2009

Re: Having problems identifying Mercury

Guys, I've screwed up here. The motor is not an XR-6. It's an XR-2. I'm sorry. I'm going to go check the block for the date number stamps and then I'll add to this. From my research, I understand that the XR-2 was only used in one serial range but I still haven't identified it.

swimmin' for shore · Nov 9, 2009

Re: Having problems identifying Mercury

OK. I'm probably more confused after looking for numbers. Some of these may be irrelevant. I'm pretty good with outboards but this has been out of my league. Some of my numbers are probably irrelevant but I'll let some of you experts sort that out for the moment:

On the timer base, there's a number stamped: 1159-5457.
The mid-section stamp is 1579-5390
On the stbd. side of the block: 858-7788.
Something else that I saw stamped on the stbd. side that's confusing me is this: (V-225) I was told that this was a 150 but I know for a fact that they were lost. If there are other numbers on the block, I can't see them.

The tilt/trim is 2 cylinders that mount between the brackets. The pump is external and was mounted inside the boat, actually.

Oh-it does say mercarb on the carbs, yes.

Hopefully, that helps.

Dukedog · Nov 9, 2009

Re: Having problems identifying Mercury

With that stamped in tha block its gonna be a first generation, '80 or '81 225hp (Crank rated) 2.4 motor.........

swimmin' for shore · Nov 9, 2009

Re: Having problems identifying Mercury

so the V-225 makes it definitely a 225 HP? I know it may seem obvious but it just wasn't the story that I got.

Dukedog · Nov 9, 2009

Re: Having problems identifying Mercury

Thats tha only motor ta have that stamped in tha block. Its also a first generation block. Should have chrome clyinders unless they have been replaced with steel sleeves. Tha head bolt pattern should be right against tha clyinders instead of away from them. Tha front half should have seven petal reed design instead of five. Can't remember if tha carbs are wh20's or
22's. Could be either. Should be stamped on top on tha back edge of tha carbs.......

swimmin' for shore · Nov 9, 2009

Re: Having problems identifying Mercury

I looked up the serial range for V-225 and it only fits in one serial number range, which is good. The twin power packs work for a 225, which adds up. The carbs, though, have the WH stamps on them. Each one is different. They appear to be, from top to bottom: WH 1-1 WH 1-3 WH 1-2. Am I missing something here?

Dukedog · Nov 9, 2009

Re: Having problems identifying Mercury

Those numbers are really testin' my feeble 'ole mind. Have ta do some diggin'. Tha 1,2,3 indicate top, middle and bottom. Tha 2 switch boxes don't indicate anything. All V6 'lectrics are basically tha same till ya get to tha new 'lectronic stuff 2000 and newer. Trigger, stator, rectifier, regulator/regulators on some and switch boxes. Pack is a (choke,cough) OMC term.......

swimmin' for shore · Nov 9, 2009

Re: Having problems identifying Mercury

lol. I stand corrected and properly chastised. One of the 2 switchboxes and the stator have been replaced with stuff from CDI electronics. According to the numbers on those parts, they cross to stuff 1981 and newer. This XR-2 has really messed me up. Like I said, the folks I got this train wreck from didn't know anything about it. They gave it to me to part, which I don't want to do until I can properly verify it. Otherwise, I sell used parts to good boaters and they later have fits when they start getting stuff that doesn't fit. As I'm reading all of the information, though, this is looking more and more like I'm holding a 1981 V-225 Mercury that may have had the cowling changed to something from a 150. I'm looking at a cross-reference here:

http://www.boats.net/parts/search/Merc2/Mercury/V-225/parts.html

Does this look about right? You've been a ton of help and I really can't thank you enough.

Dukedog · Nov 9, 2009

Re: Having problems identifying Mercury

Yeah. Thats tha right one. Do your cowls have one Plastic latch or two spring loaded metal hook type latches? If it hasn't been altered only tha plastic type latch will work on any horizontal reed (which is what your should be) motor with tha clam shell if you have tha complete stock air box on it...

swimmin' for shore · Nov 9, 2009

Re: Having problems identifying Mercury

The cowl has 2 spring loaded clips. I'm not sure what that does to our numbers. I'm still messed up on this today because I looked up the CDI part number on the stator and it says 1981-up. The serial range in this is fine. I cross-referenced the lower unit, though, and it's listed as a 1980 lower unit if we're in the right serial range. Of course, someone could have put the wrong stator in it, naturally. I feel like we're ever so close but the closer we get, the further off we seem to be-eerily similar to my last girlfriend. I took pictures and tried to add them here but I seem to be running into a roadblock there too. If you PM me with an email address, I can send them direct.

Dukedog · Nov 10, 2009

Re: Having problems identifying Mercury

OK, Here's what ya got. Its one of tha first 200's. They used tha 225 block with a vertical reed front half and rated it 200 at tha crank. Later years it would have been rated 175 at tha prop. Its all first generation stuff and looks ta be all original. Bad news being first gen. with tha condition its in its all basically scrap. Tha block half, front half and crank are toast. Probably all rods and pistons as well. Tha electrics may/may not be good. Switch boxes/trigger work on any pre 2000 V6 except 3.0's. Stator on some pre '88. If ya got tha gearcase its gonna be a pre-load type which will work on all v6 except tha 3.0's but is a little on tha weak side compared ta tha newer stuff. It might also have tha smaller water pump base. Tha clamp bracket and trim is so out dated you would have ta drill new holes in tha boat or jackplate. Sorry for tha bad news but its JMO................

swimmin' for shore · Nov 10, 2009

Re: Having problems identifying Mercury

DukeDog, your bad news isn't the worst news. I knew it was junk when I got it, of course. I thought it was 150 junk, but the plan was to part it anyway. Unfortunately for me, it's always a struggle to cross-reference it when you don't have any serial number. As junk goes, though, this is valuable enough in parts. I drained the lower unit and it was in good shape. Interestingly, though, it doesn't have a pre-load pin. You mentioned that it was a pre-load gearcase, though....
The electronics look fine. The carbs are good. The trim motor is toast. I messed with that last night but it's not working. The cylinders will sell. I'll sell all of this stuff on ebay. Someone always needs it.

I know that I keep digging for a lot of information because I'm trying to be very specific in what it will fit. If I don't, I end up with returns coming out the wazoo, but would you say, then, that I need to reference this as a V-200? Does this look about right:
http://www.boats.net/parts/search/Merc2/Mercury/V-200/parts.html

Dukedog · Nov 10, 2009

Re: Having problems identifying Mercury

V200 will work. Isn't there a tag on tha clamp bracket somewhere with a number on it? That list can be a little mis-leading with some of tha parts listed. Just specify "first generation V6" stuff might help. Ya got lucky on tha gearcase. It got changed somewhere do tha line. Good luck to ya. Hope ya sell it all..................

Having problems identifying Mercury

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