Pro Tec to DUI help

Ah heck, I figured out why I can't get engine to turn over. I fixed that problem. Still cant dizzy to pull out.

There was someone here who had to do some serious work to get theirs out,thought it involved drilling

here it is.

I had similar issues removing a distributor. I banged and pushed and prodded and heated until it seemed hopeless. I was just about to pull the entire intake until I decided to try to fabricate an attachment for my slide hammer.

You might try a chain wrench, which at least got mine "moving" (slightly).



I resorted to hammers, even big ones, and the thing wouldn't budge. I tried heat (propane) and those aerosol cooling sprays. I tried Kroil over the course of a winter. Nothing worked.



Here is the slide hammer contraption which finally freed the dizzy.



It was quite rusted in place. Recommend plenty of anti-seize on the DUI replacement.

While letting it soak in 50/50 Acetone I went shopping for a quality strap wrench with no luck. At one point I was looking at my gear pullers thinking of how to rig something up. After taking half the engine apart I was able to get a good pair of channel locks in there and twisted it out.... at 11pm. Wow that cap is big in there. I guess y'all know it BARELY fits in there.

Jerry, we're hitting the slalom course on Dora at 8;30. Idk if ill ski, think I may just drive as I'm anxious to get back here and finish this boat. We're supposed to spend the day on the water.   If you put in at Trimble, you'll see my purple boat in the yard when you drive by. Dad's '75 is at the campground docks for the day on Carlton. If you see us at any point, stop by!

I never timed this engine. It's new to me and had a few mechanical problems which led to more mechanical problems and swapping the pro tec was a no brainer at this point.

Stuck distributors on the GT-40 are common. The body of the distributor is some type of aluminum alloy. The engine is cast iron. Mix the two and one has the perfect recipe for galvanic corrosion from dissimilar metals. When disassembling the GT-40 in my Fish, we removed the front timing cover, cut the timing chain, slid the camshaft forward about 3/8", rotated the engine with the (distributor) facing down and took a long narrow punch and drove the distributor free from the bottom. We were only trying to salvage the camshaft as the engine was used in salt water and left to rust by the previous owner.

Ok, after a couple snaffoo's it's running. On the hose at the house, no problem. 3 minutes at the lake and it's at 210???

I originally had the initial set at 15*. Thought that was high but it seemed to like it. Test run and it got real hot real quick. I took seem timing out at the dock, set it at 10. It doesn't like 10 as much. Gave it a spin at 10* and still runs hot. Impeller was replaced 2 months ago, has 5 hours on it. I don't see the obvious. Strategy isn't sticking and the hull pickup is clear.

Orlando76 wrote: It's not worthy yet.

Come on Todd! Take a look through the diaries and you'll find plenty of boats that aren't pristine!

Since you had a lot of the engine apart to gain access, check that your RWP BELT is set good and snug, but not crazy tight, now that it's all back together. Maybe some belt slippage?

Aggressively too much timing will get an engine to 210 on the double quick

Unfortunately what wont detonate on the hose with no load, still might when you get out there.

Except that it is a new DUI, and that is the only thing that changed. Unless he checked final advance then if it had a problem, like too much advance the results could be hot and soon catastrophic. I would pull plugs, look for signs of detonation, then put back together and confirm total advance is reasonable to low. Better safe than broke.

TRBenj wrote: A better description of the symptoms on the overheat would be helpful as well.

On the hose I ran it at idle for 5 minutes maybe. Checked and played with timing. :15 later I drive across the street to the ramp, back the boat off. Tied it up. Shut it down. Pull trailer out. Load wifey into boat, cranked and ran 200-300 yards at 30mph. Mean time checking temp and I see it creep to 200. At this point I stop, shut it down, checked making sure I'm pulling sufficient water. Had the engine open on 107* heat index on a 90* lake and a 1mph wind. Dad eventually motors over to join the party and tows me back to ramp. I give it a few minutes, cranked it, set timing to 10* to idle it and suck water but it didn't like 10* (ran bad) so I bumped it up to 14 where it ran better but it still climbed in temperature while idling. So I shut it down, pulled out. After dinner I decided to check thermostat in a pot of water and just as I suspected it operated properly. Last weekend was basically my first time using the boat (not just test runs) and the temp never exceeded 170 and fluctuated appropriately.

The only change between the successful runs from last weekend and the overheating you're having now has been the ignition swap?