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Search: Posts Made By: Lafuerza
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04-05-2021, 02:19 PM
Replies: 12
Views: 516
Posted By Lafuerza

Thanks guys. It's a single with lots of room with...

Thanks guys. It's a single with lots of room with a large hatch so lots of room for a boat. Like I said boat runs. Was running WOT at 5100rpm prior. Then one day it starting running weird after...
04-02-2021, 03:16 PM
Replies: 12
Views: 516
Posted By Lafuerza

Is it worth doing head gasket and intake gasket....

Is it worth doing head gasket and intake gasket. Compression was consistent and it runs. Does 48-50 gps around 4200rpm. Once you go higher it bogs a bit. Once you turn off engine it wont start again...
04-01-2021, 06:47 PM
Replies: 12
Views: 516
Posted By Lafuerza

This is what I got from mechanic. Boat seems to...

This is what I got from mechanic. Boat seems to run fine at all rpms on hose. Runs fine on water too but then somehow water is getting into cylinders after a long run with some WOT and then won't...
03-24-2021, 11:52 PM
Replies: 12
Views: 516
Posted By Lafuerza

Replacing 454 Mag EFI

Need advice on replacing 454 Mag EFI. Looks like leak down test showing air getting past on several cylinders per mechanic. Looking to repower. Options and recommendations? 1995 Formula 252 Bow Rider...
03-04-2021, 11:44 PM
Replies: 1
Views: 258
Posted By Lafuerza

454 Mag Tracking Down Water in Starboard Cylinders Only

I have a 454 Mag EFI. Low hours. After medium run I anchored and shut off motor. Felt a big of lag at 4400 RPM so didn't push. Wouldn't start again. Got towed back and found water in Starboard...
02-01-2021, 07:07 PM
Replies: 7
Views: 555
Posted By Lafuerza

496 Manifold on 454 Mag EFI

I understand the 496 Manifolds bolt up to a 454 Mag EFI.

Is there an adapter for throttle linkages, oil filters, etc for the risers. Currently have those mounting to risers on stock motor. I am...
02-01-2021, 07:01 PM
Replies: 7
Views: 879
Posted By Lafuerza

Getting 496 Manifolds or Stainless Marine and...

Getting 496 Manifolds or Stainless Marine and will see how things go.
Forum: Wanted
01-22-2021, 10:22 AM
Replies: 2
Views: 309
Posted By Lafuerza

Sent you PM

Sent you PM
01-22-2021, 12:06 AM
Replies: 7
Views: 879
Posted By Lafuerza

Replaced the plugs and oiled cylinders. Ran it...

Replaced the plugs and oiled cylinders. Ran it briefly (No Hose). Put the the NGK BR6FS in. Ran smoothly for the brief time I had it on. Looked closely at all the joints. Saw a small area with rust...
Forum: Wanted
01-22-2021, 12:01 AM
Replies: 2
Views: 309
Posted By Lafuerza

Wanted: Manifolds/Risers for Gen VI 454 Mag

Looks like mine spring a leak and I am in need of manifolds and risers for 454 Mag EFI Gen VI.

Open to Performance (Stainless Marine, etc) or 496 Manifolds to save a bit of weight. Currently boat...
01-18-2021, 03:03 PM
Replies: 7
Views: 879
Posted By Lafuerza

Water in Cylinders and Spark Plugs 454 Mag EFI

Been running boat for a while. Had two episodes where it would not start after being run and shutting off. Got towed twice and now feeling like I have water getting into cylinders. Starter motor...
12-07-2020, 02:07 PM
Replies: 6
Views: 510
Posted By Lafuerza

I haven't checked pressure a 2nd time but when we...

I haven't checked pressure a 2nd time but when we did trouble shoot initially we took it out on water and tested.

Thanks. Dont recall if we touched fuel regulators.
12-07-2020, 11:51 AM
Replies: 6
Views: 510
Posted By Lafuerza

Will recheck everything. We already replaced fuel...

Will recheck everything. We already replaced fuel pump, filters, serviced injectors, and cleaned lines and checked fuel pressure at raiil.

On a separate note for the 454 Mag I have been using 91...
12-05-2020, 09:45 PM
Replies: 6
Views: 510
Posted By Lafuerza

454 Mag Bogs WOT above 4000 rpm

I have been restoring 454 Mag (385hp) on Formula 252. Recently serviced injectors and practically entire fuel system. Topped out prior at 55mph with 1/2 tank. Last time I took it out kept up at WOT...
Forum: Prop Talk
11-15-2020, 10:37 PM
Replies: 4
Views: 342
Posted By Lafuerza

Just learned about Four x 4 props. Worth...

Just learned about Four x 4 props. Worth exploring?
Forum: Prop Talk
11-15-2020, 10:36 PM
Replies: 4
Views: 342
Posted By Lafuerza

Yep I hit it. Bounced off limiter in my track car...

Yep I hit it. Bounced off limiter in my track car enough to know. Tach was bounching around 5,000rpm.
Forum: Prop Talk
11-13-2020, 10:04 PM
Replies: 4
Views: 342
Posted By Lafuerza

1995 Formula 252BR B3 Prop Choice with 454 MAG EFI

I finally got the motor running right on my 95 Formula 252 Bow Rider. Motor is not original. Swapped at some point with fuel injected 7.4L MAG EFI with 385hp. Drive is a Bravo III with 22P props. Not...
11-13-2020, 07:21 PM
Replies: 16
Views: 984
Posted By Lafuerza

Yes. I requested we do that. IAC and throttle...

Yes. I requested we do that. IAC and throttle body were gunked up badly. We put new IAC, Throttle Position Sensor, MAP Sensor, and had marine shop service Injectors. The boat sat for 3 years and we...
11-09-2020, 11:17 PM
Replies: 16
Views: 984
Posted By Lafuerza

Forgot to mention took a scanner to it as well...

Forgot to mention took a scanner to it as well but mechanic didn't note an faults.
11-07-2020, 11:31 PM
Replies: 16
Views: 984
Posted By Lafuerza

Took me a while but opened things up. Replaced...

Took me a while but opened things up. Replaced IAC, Throttle Position Sensor, MAP Sensor, and cleaned out throttle body. Had injectors pulled and serviced. Fixed the idle issue. Got RPMs back up to...
10-14-2020, 01:09 AM
Replies: 16
Views: 984
Posted By Lafuerza

Yes. Idles fine when cold. Starts right up. Once...

Yes. Idles fine when cold. Starts right up. Once warmed up if i shut down the idle goes to 1400 or 1600 and wont cone down. If i play with it might get to 1000rpm but when i put in neutral it jumps...
10-12-2020, 02:37 AM
Replies: 16
Views: 984
Posted By Lafuerza

Will start there. Where are typical vacuum leaks...

Will start there. Where are typical vacuum leaks found?
10-11-2020, 02:03 PM
Replies: 16
Views: 984
Posted By Lafuerza

454 Mag EFI Gen VI High Idle when warm

I have a Mercruiser 454 Mag Horizon EFI with 254 hours but its from 2001 and been on a boat that I restored and cleaned up a lot of corrosion. Put about 8 hours on it and it recently started doing...
Forum: Electronics
10-11-2020, 01:56 PM
Replies: 1
Views: 617
Posted By Lafuerza

Advice on Chartplotter and VHF

I have an older 1995 25' formula bow rider. More of a fair weather boater and rarely head out at night but boat in the San Francisco Delta where there are a lot of sand bars where you can easily get...
08-03-2020, 11:43 PM
Replies: 6
Views: 842
Posted By Lafuerza

Is it recommendable to put in 3 3/8 if my opening...

Is it recommendable to put in 3 3/8 if my opening is 3 7/8 now. Special Bezel? Or just go to the monster 4 5/8 for speedo and rpm.
Showing results 1 to 25 of 84
 


 
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