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Search: Posts Made By: doctor_ratz
Showing results 1 to 25 of 113
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10-23-2015, 09:21 AM
Replies: 14
Views: 1,895
Posted By doctor_ratz

Tried to contact Ed at LOM, no luck getting a...

Tried to contact Ed at LOM, no luck getting a reply.
I know GSM is pretty much for GSM........
You guys have pretty much confirmed my thought process. Looks like I have a winter project on my...
07-28-2015, 05:57 PM
Replies: 14
Views: 1,895
Posted By doctor_ratz

Need a good boat Broker - time for a new toy

I have a Formula 382 SR1 with a lot of great upgrades, but it is time to move on. I am looking for a decent broker to work with. My local boat broker doesn't know the difference (or the expense) of...
Forum: Wanted
11-12-2012, 08:48 PM
Replies: 2
Views: 468
Posted By doctor_ratz

Gil / Hardin exhaust manifold wanted

I need one Gil or Hardin aluminum exhaust manifold for a HP500 BBC. I only need the one for the even cylinders, but would buy a pair if the price was right. No leakers please.
06-15-2012, 02:28 PM
Replies: 2
Views: 861
Posted By doctor_ratz

Where to place an oil temp sender

This is a standard Gen VI 500 HP carb set up with the standard oil cooler and rear mounted remote oil filter / T-stat housing. I do have 12 qt oil pans.

I added a pair of oil temp gages, but the...
04-18-2012, 05:39 PM
Replies: 29
Views: 25,736
Posted By doctor_ratz

Well you guys are all p1ss'n in my wheaties. I...

Well you guys are all p1ss'n in my wheaties. I already own two of the EZ xfi units, and paid good money for them. If I have to buy another pair of controllers, I may as well put the carbs back on.
04-18-2012, 05:34 PM
Replies: 5
Views: 3,520
Posted By doctor_ratz

Still shocking

1) can not possibly shore power. Engines are not in the boat, no external power other than battery. The engine is on a pallet, no alternators (which by the way ARE AC, but rectified.

2) makes some...
04-17-2012, 05:02 PM
Replies: 5
Views: 3,520
Posted By doctor_ratz

MSD - Shocking experience !!!!!!!!

I have a complete MSD marine ignition for my 540 BBC engines. I was test firing them before putting them back in the boat. I had them on a mercrusier platic pallet, hooked to fuel and a battery. The...
04-16-2012, 08:10 AM
Replies: 29
Views: 25,736
Posted By doctor_ratz

I talked to FAST, and they say "no problem" using...

I talked to FAST, and they say "no problem" using it on a boat. I asked about water temp, as I run 160 degree stats, and usually stay about 150 - 160 unless really pushing it. They said that in...
03-07-2012, 05:10 PM
Replies: 13
Views: 2,304
Posted By doctor_ratz

WOW !!!!!!!!!!! I shouldn't have too, but I...

WOW !!!!!!!!!!!
I shouldn't have too, but I think I need to defend my level of expertise.
As a matter of fact, I agree with stevesxm, bearing clearance is one of the many important parameters in...
03-06-2012, 01:52 PM
Replies: 13
Views: 2,304
Posted By doctor_ratz

Mike, I am on the same page, but had been...

Mike,
I am on the same page, but had been getting mixed advice from fellow motor heads. Parasitic loss vs lower pressure. With all the plumbing and restrictions in the Merc system, I am thinking it...
03-06-2012, 08:23 AM
Replies: 13
Views: 2,304
Posted By doctor_ratz

Oil pump selection. HV/HP or HV/ normal P

I am re-doing 540 BBC engines. Bearing clearance is .0028-.003 on rods around .003 on mains. I am installing Melling High Volume oil pumps. They came with a high pressure spring installed, but also...
02-07-2012, 12:22 PM
Replies: 54
Views: 21,997
Posted By doctor_ratz

On the rebuild last spring, the crank was ground...

On the rebuild last spring, the crank was ground .010" and the rods were replaced. The rod side clearance is about .030" - .033". Merc lists .012"- .024".
01-30-2012, 08:02 AM
Replies: 54
Views: 21,997
Posted By doctor_ratz

So far I have not found any positive answers. I...

So far I have not found any positive answers. I did get a reccomendation to tighten up the side clearance on the con rods, so I am ordering a new set of rods. I stripped all of the plugs out of the...
01-24-2012, 05:42 PM
Replies: 1
Views: 1,718
Posted By doctor_ratz

Max lift on a GenVI roller set up ?????

I am planning on using 500hp cams in a genVI block (crane p/n 169611) lift is .576 / .598. That is over the .570" reccomended lift for the stock roller lifters, but I was running a .640" lift with...
01-11-2012, 09:55 AM
Replies: 1
Views: 902
Posted By doctor_ratz

Opinions wanted on HP500 carb cam and OE rollers

As some of you know, I have 540's with 9.2:1 CR, 900 cfm carbs, and Merlin intakes with Profiler heads and a Comp cam with .640 lift and 300 plus duration. The issue I have is terrible idle quality....
01-10-2012, 02:48 PM
Replies: 29
Views: 25,736
Posted By doctor_ratz

Snapmorgan: Sounds like it will save a ton of...

Snapmorgan: Sounds like it will save a ton of time, and be a whole lot easier than trying to TIG inside the tube. THANKS. Sometimes the best solutions are the easiest.
01-10-2012, 09:29 AM
Replies: 29
Views: 25,736
Posted By doctor_ratz

GPM: Thanks for the tip, I'll look into it. I...

GPM: Thanks for the tip, I'll look into it. I figured I could use a shorty tip on my TIG torch near the entrance to the pipe and have pretty easy access for welding.
01-09-2012, 09:11 AM
Replies: 29
Views: 25,736
Posted By doctor_ratz

Mrfixxall: That is a pretty clever idea....

Mrfixxall:
That is a pretty clever idea. Unfortunately I have aftermarket heads W/O a crossover.

I am considering making an O2 bung and poping it through the riser pipe just above the manifold....
01-09-2012, 09:07 AM
Replies: 54
Views: 21,997
Posted By doctor_ratz

I completely disassembled the engine. All oil...

I completely disassembled the engine. All oil passages in the block are clear. Clearance in the mains is at .0030" accross the board. O-ring was in place under the rear main cap. All bearings look...
01-06-2012, 07:52 AM
Replies: 54
Views: 21,997
Posted By doctor_ratz

How can I tell. I am using the MERC racing...

How can I tell.
I am using the MERC racing cooler and stat from the old hp500's. I am not really familiar with what is going on inside that black box. I routed the lines the same on both engines...
01-05-2012, 06:30 PM
Replies: 54
Views: 21,997
Posted By doctor_ratz

I will describe the best I can. At idle, cold...

I will describe the best I can.
At idle, cold (1000 rpm) the pressure will run about 70psi. By the time I get out of the marina, and into the main channel, at idle, the oil has warmed a bit and the...
01-05-2012, 03:46 PM
Replies: 54
Views: 21,997
Posted By doctor_ratz

Rookie: Yes, the lower end of the distributor...

Rookie:
Yes, the lower end of the distributor housing becomes part of an oil passage. If you take a look at the lower end of the housing, just above the gear, there will be two machined diameters,...
01-05-2012, 01:23 PM
Replies: 29
Views: 25,736
Posted By doctor_ratz

How do you deal with the miss-alignment at the...

How do you deal with the miss-alignment at the tail pipe caused by raising your riser pipe with a 2" spacer ?
01-05-2012, 12:51 PM
Replies: 54
Views: 21,997
Posted By doctor_ratz

stevesxm: Great thought process, and well said....

stevesxm:
Great thought process, and well said.
The oil pan to pick up clearance was checked. I have about 3/8" pan to screen.
One suggestion off line has been that due to the excessive clearance,...
01-05-2012, 08:21 AM
Replies: 54
Views: 21,997
Posted By doctor_ratz

The engines have Eagle H-beam rods. I checked the...

The engines have Eagle H-beam rods. I checked the side clearance on the rods on disassembly and they were at about .028" - .030 ". I have been told that this may be the issue, so much oil gets slung...
Showing results 1 to 25 of 113
 


 
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