I know that feeling - replacing an axle seal in my daughter's Infiniti G20t became an exercise in frustration when it became apparent that every auto parts catalog in the industry had apparently taken their incorrect information from the same source. It's even more frustrating when you're holding the seal that came out of the vehicle in one hand and the seal from the parts store in the other hand, they're not even close to being the same, and all the parts guy can do is say "well, my computer says it will fit"

What year Sonata did your engine come out of?
There's a guy on here in Wy. that just put a Hyundai V6 in and he didn't metion having any problems with untapped holes.

That happens all the time. Manufacturers screw up on their info frequently. Get a Gates P/N 43551 new water pump. I know it has the correct housing on the back. It's on my truck...

I'd still get an OE oring, though.

The engine was from a 93 Sonata.

Dave - that's correct - I had no problems whatsoever with holes not being machined or tapped. Everything bolted on.

The water pump - I had the replacement front only, so I just used the rear housing off the old one. Worked like a charm.

I've read this thread, and I was wondering (like Dave) why he changed the cams also. I simply used the Hyundai sprockets - I personally don't see a problem with that. The gear that turns the dizzy in the Hyundai is the same as what's in the Mitsu, so I didn't mess with any of it. I had to remove the sprockets to swap the rear timing belt covers, but I reinstalled the Hyu sprockets when that was done. The cams on these engines actually have a square spot to hold with a wrench, but I didn't know that at the time so I made a tool to hold the sprockets.

For any of you that are interested in this swap, just know that you will be down to the short block on the Hyundai. Essentially, it's very straightforward. It was a no-brainer for me, because I found the Sonata motor with 65,000 miles at a very good price. Of course, frustration ensued at times, because of all the cleaning, etc, but that happens with all jobs.

FYI: it's purring like a kitten. No smoke and no noise. Couldn't have asked for a better running little motor. Thanks to everyone for the help with some of my questions.

The engine I used was a 1990 model, so that might explain the slight difference in block machining?

Sorry, didn't mean to hijack this thread, but thought I could contribute. AND, I still plan on posting a few pictures sometime. I've just been restoring other things on the mighty max and haven't gotten around to it. <img src="/forums/images/graemlins/cheers.gif" alt="" />

thanks for the info,,,glad there wasn't a bolt up problem for you. If I ever fiend a Sonata motor I'll sure check out to see if those holes are tapped though, maybe it is different year to year.
Man, I wish my cam gears had a place for the wrench. I'd have one more finger now and a grand more in my savings account.

It's the camshaft that has a place for a larger wrench, not the cam gears. At least that's what the service manual says. I didn't see it until I had the valve covers put back on! <img src="/forums/images/graemlins/cheers.gif" alt="" />