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Messages - Grimpala

Pages: [1] 2 3 ... 5
1
Jet Pumps / Re: Wierd problems with sweet boat
« on: September 11, 2019, 12:45:14 PM »
Problems solved I guess.

I just went back to the fuel tank switching system and it seems to work fine. Just like it always has.

I am getting an air lock or bubble at the pump and it's not letting H2O into the engine unless I "burp" it or let the boat sit in the water a bit. At least I know what the problem is and can counteract it.

Thanks for the good ideas!

First couple of times I went out after installing my Bassetts mine did this.  I had to manually bleed the water neck, it solved itself after two or three trips, not sure what the issue was.

2
You have a picture of the misalignment?

3
The No Wake Zone / Re: BBC Exhaust gasket
« on: September 09, 2019, 06:43:49 AM »
What's wrong with stock Fel-Pro or similar?

4
Engine Mechanical / Electrical / Re: BLOWER SIZE?
« on: August 29, 2019, 06:24:22 AM »
454 .031 over with eagle rods trw pistons with worked 781 heads with comp xm flat tap cam. I’m planning on getting a whole new rotating assembly and aluminum heads and new camshaft as well


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So what are the new motor specs?

5
Engine Mechanical / Electrical / Re: BLOWER SIZE?
« on: August 28, 2019, 04:15:26 PM »
What are you current motor specs?

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6
Where did the black/heat shrunk wire that was attached with the single yellow wire end up?

7
So I goofed and ordered the wrong gasket for my TR.  I have  an ancient Weiand with three bolts on the top plate.  Gasket has four.

It's 16.5" x 7.25" with four holes.  Meant for a Weiand Hi-Ram.  It's not worth sending back plus I've already opened the package.  Shoot me your address and I'll send it out.


8
Engine Mechanical / Electrical / Re: Tunnel Ram Troubles
« on: June 30, 2019, 10:53:48 AM »
It runs!!!!!  But it idles at like 1800.  Still tuning it a bit.  What's a good idle speed?  1000 - 1200?

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9
Engine Mechanical / Electrical / Re: Tunnel Ram Troubles
« on: June 29, 2019, 05:32:01 PM »
I put a straight edge to the TR mid plate and top plate and there is daylight under them.  I'm working on sanding them on a flat plate so that theyre true to each other.  I think I had a massive effing vaccuum leak.  If this doesn't work I'll go back to a single until I can cam it and find a good pair of 650/660s

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10
Engine Mechanical / Electrical / Re: Tunnel Ram Troubles
« on: June 29, 2019, 05:30:24 PM »
Put a cam in it.  Around 540/550 lift with 280/286 duration.  Too much carb for stock cam. 


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Ive got a 630 lift with ~270 duration solid flat tappet, but I'm thinking that's too damn big.  Plus I'll have to cut the heads.

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11
Engine Mechanical / Electrical / Re: Tunnel Ram Troubles
« on: June 29, 2019, 05:29:27 PM »
With any fresh GM build, or manifold change, I static time the engine at 10° and lock it down, it may not be perfect, but it's damn close.

This eliminates 'futzing' with the distributor. Never fun with over transom headers.

Simple to static time the engine.
GM HEI, points, msd or others.

Dan'l
Yeah, I set it back to 10-11, after I realized it was a vaccuum leak and not the timing.

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12
Engine Mechanical / Electrical / Re: Tunnel Ram Troubles
« on: June 28, 2019, 01:42:14 PM »
Good luck bro


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Thanks.  I'm getting tired of working blind on this thing.  Might have to go back to the Performer RPM and a single 750.  :(

13
Engine Mechanical / Electrical / Re: Tunnel Ram Troubles
« on: June 28, 2019, 11:43:28 AM »
Get some brake clean and prime the front carb , when it fires keep spraying the carb to keep it running . Sounds like it’s running lean and that’s why it’s backfiring through the carb . Set ur idle screws down to closed the back off 1 1/4 turn out .


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It's not lean, if anything it's pig rich.  I was futzing with the timing during all this and retarded it too much. 

Going to sand the TR mating faces this weekend and get them nice and true to definitly eliminate vaccuum leaks, then try again.

14
Engine Mechanical / Electrical / Re: Tunnel Ram Troubles
« on: June 27, 2019, 09:58:58 AM »
Spray WD around the bottom of the intake and carbs. If it revs up there’s your leak.


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I can't get it to run long enough to check this. I got it to run extremely roughly for about 30 seconds last night by monkeying back and forth with the throttle .

15
Engine Mechanical / Electrical / Tunnel Ram Troubles
« on: June 27, 2019, 07:55:06 AM »
So, last week I slapped on a vintage Weiand TR with two 750 DP's (Bought them as a package deal)  I've rebuilt the carbs and everything seems to be good on those.  Running 74/75 on the jets with 50CC pumps at both ends and no power valves.

I'm running a Mallory ign. module in an old points dist.  The ignition seems strong, strong enough that I backfired and blew the top plate gasket out of the TR.

The motor is a '78 454 out of a truck, stock cam.  I put 781 heads on it at the same time, those are good to go. I'm also running OT Bassetts.

My question is: Am I over carb'd?  The plugs are a little wet, but I attribute that to pumping the carbs to get it to fire and then it not running long enough to burn everything off.  I can't get this thing to idle at all, it revs to ~2500 then coughs and sputters a bit and dies.  I can fiddle with the throttle and keep it half-assed alive, but it's not happy.  A little poppy through the pipes, The timing isn't perfect, but I've gotten it kind of in the middle of too advanced/too retarded.

I'm thinking that I might have a vaccuum leak causing this, the mid piece on the TR isn't as flat as I think it should be where it mates to the top plate. I can see light under a straight edge on one side of the TR.  I'm going to sand the plate this weekend and see if I can true it up.  The way the gasket blew out of it makes me think that it isn't sealing as well as it should.

Also, how flat does the carb base plate have to be?  The perimeter is flat/true, but on an angle there is ~.005 gap at the middle of the carb.  It's like the ears have been a little too tight, but like I say, the perimeter isn't leaking, so I figure this little bit of gap shouldn't matter on a squarebore.

Long story short, engines revs high real quickly, then dies out and won't idle even when fiddling with the throttles.  Too much carb or a massive vaccuum leak?

Thanks in advance.

16
Random Boat Parts For Sale / Free to good home - Tunnel Ram Gasket
« on: June 26, 2019, 07:08:08 AM »
So I goofed and ordered the wrong gasket for my TR.  I have  an ancient Weiand with three bolts on the top plate.  Gasket has four.

It's 16.5" x 7.25" with four holes.  Meant for a Weiand Hi-Ram.  It's not worth sending back plus I've already opened the package.  Shoot me your address and I'll send it out.


17
Random Boat Parts For Sale / Re: WTB Gas Cap (Help!!!)
« on: June 20, 2019, 11:30:26 AM »
There's a cat out in Menifee with a bunch of stuff on CL, has a pair of flip up caps and a pair of flush mounts listed.  Might dig him up or shoot him a msg.  The number listed on the listings is 951-760-0987.  I'm not sure who he his, I'm trying to get him to ship me a pair of flush mounts to TX.

18
Random Boat Parts For Sale / Re: WTB -8 AN 90° fittings
« on: June 12, 2019, 06:12:08 AM »
Grassy-ass.  I think I have from the t-valve to the headers figured out, but this piece will work perfect from the water neck to the T. 

PM me your address and I'll send you some $$$ to cover shipping.  I'm all the way out in TX. :D 

19
Suggestions / Support / Re: Brand new jet boat owner
« on: June 12, 2019, 06:09:41 AM »
All boats are different.  I have a 76 Rogers SC with a BBC in it and as long as I don't come off plane too fast it doesn't take on water.  However, if I get around wake boats it tends to take on a little.  I have gotten it over the side while making a tight turn to the left with my fatass on that side.

I've only been in a jet for the last two summers, my suggestion is to go out by yourself or with a buddy and play with the boat.  Learn it, see how it handles different water and wave conditions.

I went out a half dozen times before I ever took the kids with me, learned a lot about my boat and how she handles, I'm still learning, but at least I have a decent grasp before putting others in possible harms way.

20
I can't see the pics, but can you tap on the valves with a hammer and see if they might just be stuck in the guides? 

Or, pick up a cheap borescope from amazon and take a look from the spark plug hole.

They very well may be bent, but it's worth a check. 

21
Random Boat Parts For Sale / Re: WTB -8 AN 90° fittings
« on: June 10, 2019, 02:46:08 PM »
How much for that setup?  You think it'll hold water pressure?  I got some fuel lines from the guy I got my tunnel ram from and they leaked like a sieve.

22
Random Boat Parts For Sale / Re: WTB -8 AN 90° fittings
« on: June 04, 2019, 06:29:03 AM »
I might have some . Will check when I get home . U looking for -8 90 to npt ???


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Sorry, I think my initial post was confusing.  I'm looking for 90° hose ends.  I have two straights, and I'm trying to run from the bassett T to the headers from under the motor instead of the front.

23
Random Boat Parts For Sale / WTB -8 AN 90° fittings
« on: June 03, 2019, 07:54:45 AM »
Anyone have any -8 stuff lying around they want to part with?  Looking for a couple of 90° fittings, summit/amazon has them for ~$15 each, I'm not concerned with scratches or discolored anodizing so I thought I might see if I could find some used cheaper.

Grassy-ass


24
Growing up dad would pull the 22' camper behind a late 80's burb, then he'd have his 20' bass boat behind the trailer.  We went all over the place between TX, AR, MO, LA with that rig.

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