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Search: Posts Made By: kornegle
Showing results 1 to 25 of 69
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Forum: General Q & A
11-30-2025, 10:57 PM
Replies: 11
Views: 1,625
Posted By kornegle

I tend to agree with the above comments. I had a...

I tend to agree with the above comments. I had a 496 Mag (not HO) it cranked around 170 - 180 psi on a good Snap On gauge. Years ago I had a 468 BBC in a drag car and it had 13:1 compression but it...
Forum: General Q & A
11-04-2025, 10:59 PM
Replies: 13
Views: 1,973
Posted By kornegle

I think I purchased a bottle of zinc additive...

I think I purchased a bottle of zinc additive from a GM dealer, and added it to the oil. Fired it up quickly, and let it run around 2500 - 3000 rpm for 15 minutes. Then I changed the oil and filter...
Forum: General Q & A
11-03-2025, 10:57 PM
Replies: 13
Views: 1,973
Posted By kornegle

I had a 260 Mercruiser (1990). Around 2015 I...

I had a 260 Mercruiser (1990). Around 2015 I pulled the engine to repair a stringer. While it was out I purchased 64cc Vortec heads from Summit. I purchased Z28 valve springs about 120 lb seat...
Forum: Prop Talk
07-29-2025, 10:48 PM
Replies: 6
Views: 4,322
Posted By kornegle

If the boat could use more bow lift, you might...

If the boat could use more bow lift, you might want to try a 23P Bravo FS. The FS will often pick up 100 - 200 rpm over a standard Bravo in some applications. A 23P Bravo FS is really a 22P casting...
Forum: General Q & A
04-02-2025, 10:47 PM
Replies: 19
Views: 2,524
Posted By kornegle

I had a BBC drag engine leak at the rear main due...

I had a BBC drag engine leak at the rear main due to the reason you mentioned (mild corrosion or pitting on the crank). I had a machine shop polish the crank smooth in this area and it solved the...
Forum: General Q & A
02-17-2025, 11:29 PM
Replies: 22
Views: 3,288
Posted By kornegle

The aluminum heads will definitely help. Years...

The aluminum heads will definitely help. Years ago, I had a 260 Mercruiser with the 76cc non vortec GM heads. I installed new GM Vortec iron heads (they had 64cc chambers if I remember correctly). I...
Forum: Do It Yourself, Boating on a Budget
09-18-2024, 10:42 AM
Replies: 15
Views: 4,510
Posted By kornegle

Many years ago, I had "260 Mercruiser (350 non...

Many years ago, I had "260 Mercruiser (350 non Vortec GM) in my 23 ft Wellcraft. I removed the engine around 250 hours and installed brand new GM Vortec heads, different valve springs, a mild flat...
Forum: Mid Atlantic US
07-24-2024, 11:01 PM
Replies: 3
Views: 1,855
Posted By kornegle

We built a retirement home on Lake Keowee and...

We built a retirement home on Lake Keowee and moved in around 2015. We live on the west side near Duke Power about 15 - 18 minutes from Seneca. Clean water and beautiful mountain views are a plus....
Forum: General Boating Discussion
06-20-2024, 10:32 PM
Replies: 6
Views: 1,560
Posted By kornegle

I have a 300R and never owned an Optimax. If you...

I have a 300R and never owned an Optimax. If you opt for an extended warranty on a 300R it is more than double that of a 300 and perhaps 50% more (my guess) than a 300 Pro XS. From reports I have...
Forum: General Boating Discussion
05-23-2024, 10:27 PM
Replies: 1
Views: 392
Posted By kornegle

Is it leaking from the fuel sender unit? If it...

Is it leaking from the fuel sender unit? If it leaks mostly when the tank is full or nearly full that could be where the leak is. It might just need a new fuel sender gasket. Could be leaking from...
Forum: General Q & A
03-14-2024, 10:37 PM
Replies: 3
Views: 704
Posted By kornegle

About 4 years ago, I owned a 2006 496 Mag. No...

About 4 years ago, I owned a 2006 496 Mag. No issues, but I measured the compression using a good Snap-on gauge when I had all the plugs out for replacement. The cam is larger in the 496 HO so...
Forum: Drives and Lower Units
03-04-2024, 10:51 PM
Replies: 8
Views: 1,353
Posted By kornegle

I used Mercury rattle cans. First was two coats...

I used Mercury rattle cans. First was two coats of the Mercury Primer sanding lightly between coats. Then (my 300R lower unit is silver in color) a Mercury silver matching corrosion resistant top...
Forum: General Q & A
01-29-2024, 11:12 PM
Replies: 16
Views: 2,038
Posted By kornegle

I have a 300R outboard with a 1.25" shaft. I have...

I have a 300R outboard with a 1.25" shaft. I have used the HD solid hub with the Delrin strips. They make if fit a bit tighter and eventually wear out. When they did, I had bad "prop rattle" under...
Forum: Drives and Lower Units
09-29-2023, 10:58 PM
Replies: 11
Views: 2,208
Posted By kornegle

Did you check with ARP or ask them if they would...

Did you check with ARP or ask them if they would make you one?
Forum: General Q & A
09-04-2023, 10:13 PM
Replies: 3
Views: 1,135
Posted By kornegle

Look at Marine Concepts boat covers. They make...

Look at Marine Concepts boat covers. They make covers that cover the total side and go several inches under the "V". There is a hem sewn in the bottom of the cover that has a rope in it that goes...
Forum: General Q & A
08-26-2023, 10:55 PM
Replies: 9
Views: 857
Posted By kornegle

The Merc belt on my 496 Mag was dusting and...

The Merc belt on my 496 Mag was dusting and squealing. I read that the continental Elite belt would stop the dusting and squealing and it did at less than half the price of the Merc OEM belt.
Forum: General Q & A
08-23-2023, 11:13 PM
Replies: 20
Views: 17,353
Posted By kornegle

I never owned a snap on compression gauge but I...

I never owned a snap on compression gauge but I also went through the gauge accuracy questions. I would borrow 1 or 2 gauges from friends and then test the same cylinder with my gauge and the other...
Forum: General Q & A
08-22-2023, 10:50 PM
Replies: 20
Views: 17,353
Posted By kornegle

I think your compression will jump way up when...

I think your compression will jump way up when you crank it with a starter motor, and all the plugs out. I once changed my gear reduction starter from a 3.75 ratio to a 4.1 or 4.2 ratio. I had the...
Forum: General Q & A
08-15-2023, 10:50 PM
Replies: 3
Views: 1,608
Posted By kornegle

If you have 3 - 4 inches between the accesories...

If you have 3 - 4 inches between the accesories and seat back and the same between the harmonic balancer and floor, I think it will work. I standard BBC like a 502 would work for sure since they are...
Forum: General Q & A
08-14-2023, 10:44 PM
Replies: 3
Views: 1,608
Posted By kornegle

I had a 230SX Stingray with a 496 Gen 7 BBC. I...

I had a 230SX Stingray with a 496 Gen 7 BBC. I sold it after a couple years of ownership. At one point Stingray moved the rear seat forward on the 230LX so it would accomodate the longer length of...
Forum: General Q & A
05-29-2023, 11:11 PM
Replies: 15
Views: 2,281
Posted By kornegle

1.6 roller tip rockers? Did they elongate the...

1.6 roller tip rockers? Did they elongate the pushrod holes in the head? Usually with the Vortec heads, if you switch from 1.5 to 1.6 ratio, you have to elongate the holes in the head so that the...
Forum: Prop Talk
04-15-2023, 11:41 PM
Replies: 12
Views: 12,762
Posted By kornegle

I tried about 5 props on my 2400 Checkmate / 300R...

I tried about 5 props on my 2400 Checkmate / 300R combo. One was a 24P Bravo FS and another was a 26P Bravo 1. The engine was not quite broken in well yet, and then the Bravo FS ran around 73 mph @...
Forum: General Q & A
02-15-2023, 11:25 PM
Replies: 12
Views: 2,999
Posted By kornegle

Not sure what exactly you are trying to do, but...

Not sure what exactly you are trying to do, but if you want to measure the cam you would measure at least one intake and one exhaust lobe and they should measure at the specified intake and exhaust...
Forum: Prop Talk
01-21-2023, 11:49 PM
Replies: 24
Views: 6,325
Posted By kornegle

Perhaps I am just unlucky. I have tried at least...

Perhaps I am just unlucky. I have tried at least 3 labbed props on 3 different boats and not 1 of them was faster than the stock prop. Well one of them did run 1 mph faster but it had more slip,...
Forum: General Boating Discussion
11-20-2022, 11:20 PM
Replies: 112
Views: 27,523
Posted By kornegle

How much gear does your truck have? 3.42? That...

How much gear does your truck have? 3.42? That boat and trailer probably weighs around 6500 lbs. The 6.2 is better than the smaller 5.3 and I believe if you get the max tow package it comes with a...
Showing results 1 to 25 of 69
 
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