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Search: Posts Made By: JonnyD757
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Forum: General Q & A
08-18-2020, 01:51 PM
Replies: 7
Views: 1,038
Posted By JonnyD757

Fresh Water, may see salt once or twice a year. ...

Fresh Water, may see salt once or twice a year. Looking for new if possible
Forum: General Q & A
08-18-2020, 01:45 PM
Replies: 7
Views: 1,038
Posted By JonnyD757

SE PA. Not sure what Gen the block is. They are...

SE PA. Not sure what Gen the block is. They are rectangular port heads. Guy i bought it from said it was the Mercruiser 365 Mag 454
Forum: General Q & A
08-18-2020, 01:20 PM
Replies: 7
Views: 1,038
Posted By JonnyD757

Replacement Heads for 454 Mag

Cracked the exhaust seats on my cast 454 Magnum heads. Looking for a good replacement suggestion, Al or FE.
Forum: Photo Contest Forum
06-26-2020, 02:12 PM
Replies: 58
Views: 31,454
Posted By JonnyD757

This is Tank ...

This is Tank
https://cimg4.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/902x1792/img_1677_1__5462f53ddf46adac6d89fa8e42112ecc48d7efdd.jpg
Forum: General Q & A
06-23-2020, 01:51 PM
Replies: 7
Views: 1,224
Posted By JonnyD757

https://cimg0.ibsrv.net/gimg/www.offshoreonly.com-...

https://cimg0.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/2000x1504/img_1705_1__b4a021d6d3e54b10360d13e953a28bbb4379879c.jpg...
Forum: General Q & A
06-23-2020, 10:59 AM
Replies: 7
Views: 1,224
Posted By JonnyD757

Boat is new to me. Was told its the 365 Mag. ...

Boat is new to me. Was told its the 365 Mag. Not sure what year the motor is, guessing early 2000's. First time I had it in the salt water i had the issue. Motor is cooled by pick up in the...
Forum: General Q & A
06-23-2020, 08:29 AM
Replies: 7
Views: 1,224
Posted By JonnyD757

Thanks. I did do a lot of idling around the...

Thanks. I did do a lot of idling around the night before. I am pressure testing the manifolds as we speak.
Forum: General Q & A
06-22-2020, 01:23 PM
Replies: 7
Views: 1,224
Posted By JonnyD757

454 Mag Sweat?

Ran my 454 Mag Velocity at the beach last weekend. Checked the oil Monday morning and saw about 1/4" at the bottom of the stick was milkshake. Oh crap water in the oil. I drained the oil and...
Forum: General Q & A
06-11-2020, 09:53 AM
Replies: 21
Views: 3,197
Posted By JonnyD757

It is a 2 wire. Meaning two wires coming out of...

It is a 2 wire. Meaning two wires coming out of the distributor
Forum: General Q & A
06-11-2020, 09:38 AM
Replies: 21
Views: 3,197
Posted By JonnyD757

Been there done that. Fun times.

Been there done that. Fun times.
Forum: General Q & A
06-11-2020, 09:19 AM
Replies: 21
Views: 3,197
Posted By JonnyD757

Located in Souderton, PA. About 45 minutes NW of...

Located in Souderton, PA. About 45 minutes NW of Philly
Forum: General Q & A
06-11-2020, 09:17 AM
Replies: 21
Views: 3,197
Posted By JonnyD757

MSD Blaster

MSD Blaster
Forum: General Q & A
06-11-2020, 09:10 AM
Replies: 21
Views: 3,197
Posted By JonnyD757

The new carb didn't help. Tried to get it up on...

The new carb didn't help. Tried to get it up on plan and 1500 rpms it missed. It should still run with retarded timing just no power correct?
Forum: General Q & A
06-11-2020, 08:55 AM
Replies: 21
Views: 3,197
Posted By JonnyD757

So a bad module may let the boat idle but not...

So a bad module may let the boat idle but not rev? I've seen a lot about replacing the TB IV with a DUI. They say it gets rid of all the modules, coil, and wiring. Before i drop more $$ i want to...
Forum: General Q & A
06-11-2020, 08:32 AM
Replies: 21
Views: 3,197
Posted By JonnyD757

It had an Edelbrock. I put on a Holley 750 off...

It had an Edelbrock. I put on a Holley 750 off my 57 Chevy that i know is a good carb. Unfortunately i don't have a lot of buddies that are into boats, mostly muscle cars. I checked all the...
Forum: General Q & A
06-11-2020, 07:55 AM
Replies: 21
Views: 3,197
Posted By JonnyD757

Merc 454 Mag Engine Miss

I have a 454 Mag in my 22' Velocity. I am a new owner of the boat. First few times out the boat ran flawlessly. 73 MPH at 5200 RPM. The last few times not so much. I notices a miss when cruising...
Showing results 1 to 16 of 16


 
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