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Search: Posts Made By: mcollinstn
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Forum: General Q & A
07-15-2021, 09:24 PM
Replies: 3
Views: 165
Posted By mcollinstn

Glad you got it figured out

Glad you got it figured out
Forum: General Q & A
07-12-2021, 09:07 PM
Replies: 3
Views: 165
Posted By mcollinstn

Okay, you'll have to help me here. I was under...

Okay, you'll have to help me here.
I was under the impression that the last year for a 500EFI was around 2005.
This means "practically new, never ran" could imply a lot of things. Most of the...
Forum: General Q & A
07-10-2021, 09:34 PM
Replies: 10
Views: 282
Posted By mcollinstn

"Normal" V belt widths are usually A B C, etc. ...

"Normal" V belt widths are usually A B C, etc.
Your boat will use a normal V belt.
Kevlar (green) belts are designed to tolerate slipping without totally trashing the belt (this keeps mowers from...
Forum: General Q & A
06-30-2021, 12:33 AM
Replies: 33
Views: 1,203
Posted By mcollinstn

Buy fittings here. Take them to your local...

Buy fittings here.
Take them to your local hydraulic hose guy and have them crimped on.

https://www.hydraulicsdirect.com/JIC-37-Female-stainless-hose-fittings-p/ss-hy-fjx.htm
05-29-2021, 11:56 AM
Replies: 6
Views: 329
Posted By mcollinstn

#1 - get a notebook list all baseline...

#1 - get a notebook
list all baseline parameters, list results
every change, list it and list results.

Put a throttle stop right before the secondaries start to open.
Then go jet the...
05-23-2021, 09:07 PM
Replies: 2
Views: 288
Posted By mcollinstn

Diode isolators work fine. Not sure where they...

Diode isolators work fine. Not sure where they got a bad rap. But, sure, a switching solid state solenoid isolator can perform better (while containing moving parts and contacts that do incur wear...
05-23-2021, 08:58 PM
Replies: 10
Views: 710
Posted By mcollinstn

Back to the basics.. You mention something...

Back to the basics..

You mention something about needing to adjust the timing 8 degrees. Or something like that.

And help me understand what you mean about it "running fine" out of the water....
04-26-2021, 11:14 PM
Replies: 5
Views: 679
Posted By mcollinstn

There is a bracket (usually on an exhaust riser)...

There is a bracket (usually on an exhaust riser) where the cable from the shift lever is connected to an arm that is connected to the cable that goes into the outdrive. Remove the cotter pin that...
Forum: General Q & A
04-13-2021, 09:18 PM
Replies: 5
Views: 537
Posted By mcollinstn

What dish size (in cc), and how far down in the...

What dish size (in cc), and how far down in the hole are the pistons? You may not have the CR you think.
04-11-2021, 01:52 PM
Replies: 151
Views: 10,768
Posted By mcollinstn

You have tried 4000 things. Do this. 1) Get...

You have tried 4000 things.
Do this.
1) Get a piston stop, adjust your timing mark so that your TDC mark is correct on your balancer. Disconnect your throttle cable so you can do everything by...
Forum: General Q & A
03-13-2021, 10:43 PM
Replies: 42
Views: 2,210
Posted By mcollinstn

1) ALWAYS establish TDC with a piston stop....

1) ALWAYS establish TDC with a piston stop. Adjust the stop out far enough you can't get higher than 15 degrees to top of stroke to improve accuracy. I still have my first homemade piston stop that I...
Forum: General Q & A
03-07-2021, 02:20 PM
Replies: 6
Views: 485
Posted By mcollinstn

To my knowledge, there is no "dictionary...

To my knowledge, there is no "dictionary distinction" between tunnel hulls and catamaran hulls. Generally speaking, a tunnel hull must have "roof" structure between the hull portions, while a...
02-21-2021, 09:35 AM
Replies: 1
Views: 428
Posted By mcollinstn

The beauty of the spacer is that you can try it...

The beauty of the spacer is that you can try it back to back. As you raise the drive, you will experience different behavior and handling.
Lighter boats with inherent lift respond well to raised X...
Forum: General Q & A
02-14-2021, 11:48 PM
Replies: 40
Views: 2,443
Posted By mcollinstn

It's not uncommon for fuel to evaporate out of...

It's not uncommon for fuel to evaporate out of the bowls when it sits a few days.
Buying a shopping cart full of "new carbs" won't change this.

There are 2 ways fuel will "leave" your carb.
1)...
Forum: General Q & A
02-06-2021, 12:50 AM
Replies: 17
Views: 1,360
Posted By mcollinstn

Did you verify the consistency of the center to...

Did you verify the consistency of the center to center lengths of your rods?

Here's what I do during mockup. I put ABCDEFGH on the piston crowns. Then
I put every piston and rod on the #1 crank...
Forum: General Q & A
01-24-2021, 01:56 PM
Replies: 10
Views: 911
Posted By mcollinstn

There are only a few reasons that the 1-piece...

There are only a few reasons that the 1-piece Mercruiser style manifold will crack on you.

1) the manifold flange is warped
2) the flange surface on the head is not flat and needs resurfaced.
3)...
Forum: General Q & A
01-22-2021, 10:41 PM
Replies: 10
Views: 911
Posted By mcollinstn

Unless your engine is totally exposed and in the...

Unless your engine is totally exposed and in the open, you are required to run water-jacketed exhaust manifold/header. An enclosed engine compartment already has trouble getting rid of fuel vapors,...
01-16-2021, 08:13 PM
Replies: 1
Views: 708
Posted By mcollinstn

What is the Blackhawk reference? An Alpha SS...

What is the Blackhawk reference?
An Alpha SS and a Blackhawk are different animals..
01-16-2021, 08:07 PM
Replies: 32
Views: 2,585
Posted By mcollinstn

Okay, the blistering paint is definitely a...

Okay, the blistering paint is definitely a warning sign, but before you start major disassembly I have to ask one thing..

Are you 100% sure you don't have air trapped in the drive upper? If you...
Forum: General Q & A
01-13-2021, 08:25 AM
Replies: 27
Views: 2,333
Posted By mcollinstn

I just caught that you have TRS drive. The TRS is...

I just caught that you have TRS drive. The TRS is a bit stouter than a Bravo because it doesn't contain any shifting mechanism.
For a Bravo, 450hp is where things get dicey.
TRS is happy thru 500hp...
Forum: General Q & A
01-13-2021, 12:23 AM
Replies: 27
Views: 2,333
Posted By mcollinstn

Your cam kit choice is for a Gen5/6 Big block. It...

Your cam kit choice is for a Gen5/6 Big block. It comes with roller lifters that require a D shaped retainer plate. The correct tie-bar lifters are required for a MkIV and are more expensive.

At...
Forum: General Q & A
01-10-2021, 03:21 PM
Replies: 9
Views: 997
Posted By mcollinstn

The Vortec flows a LITTLE more than the peanut....

The Vortec flows a LITTLE more than the peanut. The main benefit us the 99cc heart-shaped combustion chamber. You will see a full number bump in compression. Along with that bump, you should add some...
Forum: Formula
01-06-2021, 10:55 AM
Replies: 217
Views: 15,654
Posted By mcollinstn

I wish I had seen this thread before your block...

I wish I had seen this thread before your block work was done.
If your squish height (clearance between the piston quench pad and the head) was .036" to .040" you would have no trouble running 87...
Forum: General Q & A
01-05-2021, 09:28 PM
Replies: 25
Views: 1,523
Posted By mcollinstn

Your stem clearance is normal. If you were...

Your stem clearance is normal.
If you were looking at a high boost motor, the guide material and stem clearance would be more of an issue, as well as the exhaust seat width and face width at the...
Forum: General Q & A
01-03-2021, 04:54 PM
Replies: 25
Views: 1,523
Posted By mcollinstn

4 psi should be plenty safe, even with mid-octane...

4 psi should be plenty safe, even with mid-octane levels. At 4psi, your valves are fine too.
keep total timing under 35.
You are borderline on requiring an intercooler.
If you do choose to add a...
Showing results 1 to 25 of 500
 


 
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