Decipher this Welch plug number

[MarkV_Deep6]

Hello Again<br /><br /> I noticed some tach fluctuations and some melting epoxy like stuff from the stator.. Not good!!! Since I don't trust the year I was told the engine was I thought I would verify the year from the welch plug G2537940 . These are the only identifying numbers other than the serial numbers given in the transaction. BP1D46SJC888<br /><br /> I guess I'm dense but I can't tell the year from this number, and it does not seem to match any thing I've read about.<br /><br /> I was told this is a 92 300 Johnson V8.. How close is this? I really don't want to try to return electronic parts cause the year I order is incorrect. There (ouch) expensive!!

 

[WillyBWright]

Re: Decipher this Welch plug number

It's a motor serial number. Johnnyrude doesn't offer any model year breakdowns by serial number, at least not to us on the consumer end. They didn't make the V-8 for many years (1985-93). I doubt there's much difference between years. I believe they were all 300s (maybe also 275s in the early years), but I've only ever seen one and I'm not all that familiar with them. And only Johnson? Not Evinrude? The second # is your hull ID. Your hull was cast in August of 1988. Sometimes that's a clue as to the age of the motor, but certainly not reliable.

 

[MarkV_Deep6]

Re: Decipher this Welch plug number

You would think there would not be much different in the parts for the 300's but there are. Just peeking on the BRP site show several different part numbers for the stator. The rectifier seem to be the same on several.<br /><br />Just rechecked the numbers on the title That's serial number listed for the engine. The hull number is HSX5W13K586. Getting old gotta recheck stuff all the time

 

[Dhadley]

Re: Decipher this Welch plug number

The V8's were sold in the states from 86 to 98. There were 250's, 275's and 300's. Second Effort made a counter rotating version for some that the powerhead actually rotated backwards. That required different ignition parts, among other things. Stators change part numbers sometimes simply because in different years the connectors were different. <br /><br />V8 sales overseas continued after they were stopped in the states. We can probably narrow it down some. Is there one power pack mounted at the top of the block right aft of the flywheel? Or 2 small ones, one on each side at the top?

 

[MarkV_Deep6]

Re: Decipher this Welch plug number

Going from memory as it is dark outside now. There are two small ones on each side. Thanks for chiming in!!

 

[Dhadley]

Re: Decipher this Welch plug number

OK, if there are two small ones then the ignition is 1985, 86 or 87. That should be a small bore or 3.6 liter motor. It wouldn't be unusual for it to have a big bore (4.0 liter) powerhead after all this time. But anyway the ignition parts are from 85, 86, or 87.

 

[MarkV_Deep6]

Re: Decipher this Welch plug number

Thank you Sir!!!<br /><br /> I was checking the manual last night to see if the two Power Packs were shown in the schematics listed and they are not.... The Clymer Manual does not go back that far in the schematics it only shows the 92 and up that have one PP.<br /> You are probably correct in you assumption that the P head has been switched to a 4 liter as the seller made a point of this fact and that it had very low hours. (Wonder how true that statement was) It would seem this one has been pieced together as the power head is probably a 92 with all the other components being from the original engine.<br /> I did note the flywheel had V8 scratched into it as though it was from a salvaged engine. <br /> I will go check the part numbers for those years with the dual PP to see if that will narrow down the parts to buy, I'm planning to buy the stator and the rectifier together as all posts I've read indicate the two could cause each other to fail. The Amp gauge shows nothing wrong, but the tack and the goo from the stator tell me another story. It also started mid range intermittent cutting out after a long run. This stopped at slow speed and after being shut down.<br /> <br /> While I've got the flywheel off I want to get thing right for my vacation and trips out of Oregon inlet.<br /> If you have any other suggestions or bits of knowledge that will help me, please let me know. <br /> Thank you very, VERY much for the insight you have provided already!!

 

[Dhadley]

Re: Decipher this Welch plug number

No problem. Those V8's are a blast. We ran a few and once you understand them, you've got it made.<br /><br />Just to make sure of something, this is not a counter rotating powerhead, right? If it is there will be a cable right under the flywheel that looks like a real short throttle cable. Probably green.

 

[Dhadley]

Re: Decipher this Welch plug number

Oh, if you want to know if it's a 3.6 or 4.0, look at the top of the head. Between the head and the block there will be a small tab on the head gasket that sticks up. If the top of that tab is straight across it's a 3.6. If that head gasket tab has a notch cut out of it, it's a 4.0.

 

[MarkV_Deep6]

Re: Decipher this Welch plug number

As soon as I get home I will check out all this on the engine... This got me to wondering if the part numbers for the stator are stamped on the stator itself. I would like to have the parts prior to tearing into it... but I can start before ordering to make sure of the correct part numbers. There are still a few different stators that this may be.<br /><br />Thanks much

 

[MarkV_Deep6]

Re: Decipher this Welch plug number

Well I know its not a counter rotating enging and it a 4.0 block. So on from here. I spoke with Seiler marine. He said that there is usually a part number on the Stator and Rectifier. Guess I will start tearing into it. Went and bought the harmonic puller. Now just need to find the size of the bolts to use.... and its not 1/4 20..<br /> I'll let you know how it all turn out.

 

[Dhadley]

Re: Decipher this Welch plug number

Does it have 2 packs?

 

[MarkV_Deep6]

Re: Decipher this Welch plug number

Yep

 

[Dhadley]

Re: Decipher this Welch plug number

Guess he's not intrested in looking it up, huh? The stator is a 583670. The reg/rec for a 1985 is a 584675 and for a 86/87 it's 583689.<br /><br />Here's the wierd part. There isn't any difference in the two reg/rec except wire length or the end on the wire. However, it looks like the 584675 is way cheaper. At least in the book I have.

 

[MarkV_Deep6]

Re: Decipher this Welch plug number

Wow...That's great info...He's going by aftermarket parts. What's your opinion on them, should I stick with OEM? <br /> Pasted below<br />If your stator has any of these numbers: 583415, 584287 -- then you<br />would need CDI stator #173-4287, which is $249 and comes with a<br />one-year warranty.<br /><br />If your regulator has any of these numbers: 583266, 583689, 584424,<br />586000, 586272, 878334 -- then you'd need CDI regulator #193-3689,<br />which is $189 and comes with a one-year warranty.

 

[Dhadley]

Re: Decipher this Welch plug number

If it's indeed CDI units, I'd prefer them to OE. And I have no reason to suspect that they aren't since he's giving you CDI part numbers and warranty info. Great bunch of guys and fantastic parts.

 

[MarkV_Deep6]

Re: Decipher this Welch plug number

Hat's off to you sir... Once again!!

 

[MarkV_Deep6]

Re: Decipher this Welch plug number

Well got the tools and the bolts for the puller 5/16 fine thread grade 8. Hooked up the air impact gun and the bolt came right off. Course a little BP blaster probably helped.<br /> Now the puller is sitting there on the engine at what I think should be enough to make it pop. I've read that sometimes this takes quite a while. I soaked it with PB Blaster and I just gonna let it sit to see if it will release.

 

[MarkV_Deep6]

Re: Decipher this Welch plug number

Well the mystery deepens... Got the flywheel off this AM and got the parts out. There is no discernable part number on the Stator. There is a hand written number 726 on it. The rectifier is 582360 and has a tag that indicates it was repaired possibly in 1986 or 96. (The year 6 was stamped through).<br />I noticed also that the Power packs have different numbers 582530 Left side 582645 right side. Also found a couple of disconnected wires under the L PP one was brown the other was yellow with a red stripe; empty butt connection on both.They are comeing from the wireing harness.<br /> I'm gonna try to get a host to post some pic's of the Stator. I thought maybe it would help.<br /> Course I could go ahead and order the Stator you said it should be 583670... Right now this looks as if a shade tree or semi knowledgeable person mixed and matched whatever was available to get the engine running. This stuff has been on for quite some time so it was not a recent job and was working.<br /><br />Almost forgot.. the yellow wire comeing out of the power pack on the L side was pinched and the insulation was gone from that wire to where it attached to the bolt on the front of the PP.

 

[MarkV_Deep6]

Re: Decipher this Welch plug number

One mystery resolved... I was looking at the connections a little closer and there was a rolled up tag in one of the black cable protectors<br />583415, 584287 Repaired. Went back and checked the number on the rectifier again.. it was 582366. (Us old farts can't see either).<br /><br /> Parts on order from Sieler Marine.<br /><br />Think I should worry about the difference in the Power Packs??