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Messages - obnoxious001

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51
Engine Mechanical / Electrical / Re: Carb Problems
« on: February 20, 2013, 09:42:48 AM »
There is another trick that some savvy boaters use.  AV gas is much more stable, so if you run some of it into the carb, even if it does evaporate, it doe not leave the residue. 

I was up at Parker over the weekend discussing how my friend's turbo engine, as well as my own(now gone) never have carb issues, and how neither of us runs pump gas.  I never touched a carb on my engine in 6 years of racing and playing with that boat. 


52
Might try Rex Marine,, I think they have the wire re-enforced ones  http://rexmar.com/page229.html

53
Engines / Engine Parts For Sale / Re: Jet boat Oil Pans
« on: January 17, 2013, 02:10:18 PM »
Looks like I made a mistake in the ad,, the Dooley pan is for a Gen 5/6 block,, not the MK IV that I wrote for some reason.

54
Engines / Engine Parts For Sale / Re: Jet boat Oil Pans
« on: January 05, 2013, 06:42:51 PM »
ship the dooley to vegas?

Sure,, PM an address to me, and let me know if it's a residence and I will check shipping cost.

55
Engines / Engine Parts For Sale / Re: 781 heads
« on: November 20, 2012, 11:09:51 PM »
Would you be able to sell me fresh heads with the required cam and roller rockers?

Sure, maybe PM your number to me if you want to talk on the phone tomorrow.

56
Engines / Engine Parts For Sale / Re: 781 heads
« on: November 20, 2012, 05:47:13 PM »
I have a bare set of 049's with an all new set of stainless steel valves to go with them.  I can get a valve job done on the heads and assemble with springs to match your cam's requirements if you want some that are all fresh. 

57
Engines / Engine Parts For Sale / Re: Jet boat Oil Pans
« on: November 20, 2012, 11:34:55 AM »
All of these are still here, available for local pickup in So Cal

58
Engine Mechanical / Electrical / Re: Heads and cam
« on: November 09, 2012, 02:00:53 AM »
Looking to get rid of peanut port heads during the off season. What is a good bolt on head and cam combo out there? This is going to be going on a 21ft open bow river runner. Not looking for anything crazy just a nice top end kit that will wake my motor up.

Thanks for the help
Mike

Since the casting number you gave is a Gen 6 block, I presume you already have a roller cam.  I can get that one reground for you for considerably less than you can buy a new roller camshaft for.  You stated you have a tunnel ram and a single 4150 Holley,, but don't say what size the carb is.  Can't see it sticking through the engine cover on the boat.  A tunnel ram may not be your best choice for your heavier boat, and probably lower RPM? 

I would be happy to talk to you on the phone if you want to PM for my number.  The oval port heads that have been mentioned might be the best way to go.  If you are really on a budget I have a set of the peanut port heads that were opened up to the larger oval size. 

First step is to decide what you think you want to spend, and how much you would like to gain and see if those two numbers will work together.

59
Engines / Engine Parts For Sale / Jet boat Oil Pans
« on: November 01, 2012, 05:51:35 PM »
I have several used pans for jet boat applications.

1 Dooley 10 qt  MK IV BB Chevy (pictured) $225

1 unknown 9 1/2" deep Gen 5/6 BBC painted pan  $150

1 Milodon supercomp Gen 5/6 BBC dragster pan (also pictured) mint condition no dipstick provision  $225

1 Oldsmobile 10 qt pan, apparently build by Gale Banks, still has stickers and turbo oil drains (plugged with pipe plugs)  $150

No oil pump pickups included, can advise which ones will fit.












60
Engines / Engine Parts For Sale / Re: for sale holley 850 dp
« on: October 18, 2012, 09:59:44 PM »
is that a mechanical secondary or vacuum?

That's the marine mechanical secondary model if I am seeing the photo right,, probably should grab it quick at that price.

61
WTB / Re: BBC windage tray
« on: October 12, 2012, 11:44:06 PM »
really? No one? I thought for sure someone here would have one laying on a shelf

Guess you need to be more specific as to style that you need.  There are short ones and long ones, 7 stud or 5 stud,, sometimes even 4 stud. 

What happened to yours if you forgot to put it back in?

62
Thanks for that guys. Yea it would be nice to bolt something directly on and keep it tidy. TJS Nordic how long have you run your system for and do you run your boat for long periods at a time? What temp does it run at and does the temp fluctuate much? My running is an hour or so one way normally in braided shingle rivers.

Are you using the boat for ski racing or something?

If you are running the engine hard for extended periods of time, it's common over here to run as much water through the engine as possible.  I personally ran blown and turbo engines in a Schiada ski race boat, with a large cam driven water pump.  The turbo engine had all -12 water lines.  Hottest I ever recall it getting was a weekend when I pulled an Aussie skier at Lake Mead in Men's Open class,, air temp was about 115 degrees, and at the end of the race after I dropped the skier off I saw 190 degrees on the gauge, that quickly came back down as I let the engine continue to idle to cool the turbos and normalize temperatures.

PS... I also build engines for a living, so there is more than one school of thought on cooling.  My 1000 HP turbo engine was in the boat 6 years, and still in good shape when I took it apart for inspection after selling the boat without the engine.

63
I don't know who all sells these,, but Teague has a bunch of different ones similar to this one.  http://teaguecustommarine.com/index.php/stainless-steel-thermostat-housing-18.html

64
Engine Mechanical / Electrical / Re: Lifter, valve or pushrod wtf
« on: September 24, 2012, 12:27:46 AM »
My first thought, based on how you said you ran it, was the same as GT Jets, oil temp. 

If you have a large capacity pan, being a quart low should not be an issue.  Oil temp can be caused by extended running at higher RPM and load.  If you made a lap at Elsinore at 4500 RPM and up, it's basically the same as racing it.  Personally, I like straight weight oil for "racing", rather than multi grade.  I know the Valvoline is the easiest racing oil to get your hands on, but in my opinion there are better choices.

With 600 hours, if you have been running it that hard all of it's life, it could be getting kind of tired?

65
Engine Mechanical / Electrical / Re: need help puzzled
« on: September 15, 2012, 12:02:25 PM »
:banghead: ok guys hears the deal built my motor up a couple seasons back and it has been flawless. have taken it to el cap 3 times this season with no issues but decided to make a trip to the river and started blowing oil out the breather and getting warm not hot but ran up to 180 which it never does! :screwy: so i pulled up to the sandbar and took a quick look I had oil on the driver side only coming from the valve cover breather so I just decided to enjoy the weekend get a tow, trailer it, and catch a ride with friends. now im home and pulled the plugs number one cylinder got hot but all other plugs look fine can someone help shed some opinion on this. should I tear it down? it doesnt even wanna crank over now and the motor only has like 100 hours maybe!......Mike

With all the plugs out, can you turn it over with a wrench on the balancer bolt?  If not,, maybe disconnect the driveline and make sure the pump isn't causing the drag?

Maybe try draining the oil filter into a clean pan to inspect for debris.  You can also pull the valve covers to look for debris.

Before I would tear an engine down, I would check and test a number of things,, a leak down test helps to let you know if valves or rings have a sealing issue.  You could do a simple compression test if the engine turns over properly, but it's not as good as a leak down for indicating the condition of the engine.

66
switched from 3 point to a 4 point mount... the flexplate is new, and its flat... but as you can see in the pic its making contact with the plate mount.  theres a good 1/8" of room between them.  does the crank move around that much? is the flexplate flexing/bad?  i thought it might be the pump pushing forward on the engine but i tried pushing forward on the pump shaft and i cant get it to move at all.


In some instances, a flexplate with no torque converter on it will "flex", and may make contact.  I saw one (a new, SFI thick one) make some sparks the other day on an engine I was running on the dyno.  The dyno operator commented that he sees it occasionally. 

67

i couldnt imagine have turbos in a boat that i wanted to use all the time.

Why would you make a statement like that? 

I personally ran a 505 cubic inch turbo engine in a 20 foot Schiada that was used for ski racing (both marathons and sprints), as well as being used for weekends at Parker.  Granted, it was not a pump gas engine,, ran 15 lbs boost, but it was completely trouble free for 6 years until I finally sold the boat.  The boat was sold less engine, and I freshened up the engine before I sold it, but was amazed to see that nothing actually needed replacement,,, rings and bearings would have continued to run for a long time. 


Back to the original question, you would not run a "high compression" engine on pump gas and expect good results.  You need to decide what is most important to you, power or budget.  Forced induction engines will cost considerably more (mostly due to the added cost of blower or turbos), but set up properly they should be completely reliable and yield more power.

68
So, I almost always put the charger on my battery for a while before I take out the boat---1 battery, alot of sitting around with the radio on. Today, it was totally dead when I put the charger on,--like dash lights don't come on "dead"  I took off the positive battery cable, and put a volt meter between it and the battery, and it was showing full battery voltage. It showed no amp draw. I did unhook the radio so the clock, and memory were not drawing any voltage, and of course had the key off. I started to narrow down systems that could be shorting out by totally disconecting them one at a time. I found that the alternator seems to be what it shorting out, and draining the battery,--I THINK. It still makes power like it should when it is running for the reccord.  My question is... do they go bad like this?-
by bad I mean an internal short?  How would one test for this before replaceing the whole thing?---and will a regular automotive alternator work instead of a higher priced marine one?  Thanks in advance!

With the key off, it should not be showing any amperage draw. 

Most parts stores have battery load testers, maybe the easiest way to check the battery.  For that matter you should be able to take the alternator and have it tested.

I wonder if there is a connection issue in the circuit?  You can measure voltage across the two battery terminals,, then leave the meter on one terminal, and use the other meter probe to check the system at each connection point, looking for a large difference in what you read across the battery.  That can identify a point of high resistance.

If the dash lights don't come on, but yet there is battery voltage, I would not immediately suspect a bad battery.

69
Engines / Engine Parts For Sale / Carburetors
« on: August 23, 2012, 05:38:50 PM »
Looking around the garage,, I have a number of carburetors taking up space including the following:

3310-4 Holley 750 vacuum secondaries   $100

850 Holley (choke horn removed, was on a 509 cu in Chevy) $300


Barry Grant Race Demon RS with interchangeable venturi (it has the purple sleeves in it now)  $400

Holley 750 Dominator   80186 (NEW)  $550

Also have a set of new in the box Holley split Dominators  $2200



All located in Southern California

70
WTB / Re: WTB:4 point heavy duty engine stand
« on: August 20, 2012, 10:14:13 PM »
I have had one of these stands for quite a few years now, it's always my first choice to work on of the many stands that I have here.  The way the head is machined, it can be turned easily, but also can be turned part way and usually will stay in place without tightening the bolt,, extremely handy when grinding and washing the block.  It's also the only stand that I have that I feel I can trust with a turbo or blower setup on the engine.


71
Engine Mechanical / Electrical / Re: Smoked sbc
« on: July 20, 2012, 04:08:24 PM »
Is the water from pulling the head without draining water first?

On your previous question about springs, they should be even only if the rockers were all loose so no valves were open.  I guess that broken piston probably bent at least one valve?

72
Engine Mechanical / Electrical / Re: holley valve cover breather??
« on: July 19, 2012, 11:55:36 AM »
I bought used holley high rise valve covers. I need a breather for the right one but its the kind that like twist and locks in. Where do i get one

You can try Herbert Performance, since you are in Chino, right off the 71 freeway.   As mentioned, many parts stores have small amounts of "performance" parts.  Pep Boys probably has them also.

73
Engine Mechanical / Electrical / Re: Smoked sbc
« on: July 15, 2012, 08:27:03 PM »
Yep just bought it. Ran it about 10-15 times. Last time out it got a little warm (water 140*)(maybe fuel starved bc I would lose pressure at WOT). So new fuel pump will be in order.  Could that have fried the electrode?


Sent from my iPhone 4S

If you knew you were losing fuel pressure, but still continued to run WOT, then you probably have the answer to the problem.  I guess there is no real way to check timing at this point, but it's possible there was too much ignition timing as well.  As I said above, you are going to want to know what cause the problem and make sure you don't do it again with a fresh engine.  Where are you located, I can look at some of the parts for you if you want some help figuring it out.

74
Engine Mechanical / Electrical / Re: Smoked sbc
« on: July 14, 2012, 07:49:31 PM »
It's going to be kind of important to figure out what caused the problem, to make sure you don't repeat that!

75
Engine Mechanical / Electrical / Re: Can I turn my distributor?
« on: July 12, 2012, 05:53:24 PM »
Walking the dist wires won't work because the dist cap will still be in the same position. What issues do I need to watch out for as far as marking it or something so the timing will be where it is now if I lift and turn the dist, or do I just have to start over if I lift and turn?

Thanks

The point was, if you move the wires one position, you can then rotate the distributor 45 degrees(45 x 8 = 360) and then have correct timing.  There is no need to pull the distributor, simply rotate it, but you will need to reset timing.

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