Jump to content

Welcome to TheMalibuCrew!

As a guest, you are welcome to poke around and view the majority of the content that we have to offer, but in order to post, search, contact members, and get full use out of the website you will need to Register for an Account. It's free and it's easy, so don't hesitate to join the TheMalibuCrew Family today!

2003 hamerhead 375 not running under load


Recommended Posts

Ok spent 2 grand on diagnostics and a new computor from indmar, boat will not run ove 38 mph before falling in rpms, called indmar and they did want to talk much talked to the mechanic and after he told me he could fix it he now says call a race shop! That's BS!

Link to comment

I am 30 seconds from the supra plant, 20min from the mastercraft plant and 35min from the malibu plant! The mechanics from the Boat Capital are Crap!

Link to comment

45 psi for a 2003, I would post the chart link but do not know how on this forum. I am now looking for a higher pressure regulator on line. Lots of gm vehicles used this type, it goes into the fuel rail and at the bottom of the regulator the o ring is built inside the regulator, wish it could post a pick

Link to comment

45 psi for a 2003, I would post the chart link but do not know how on this forum. I am now looking for a higher pressure regulator on line. Lots of gm vehicles used this type, it goes into the fuel rail and at the bottom of the regulator the o ring is built inside the regulator, wish it could post a pick

OK, I'm just looking at the chart in the 2003-2005 Indmar manual (B-1) which shows 50psi for MPI motors - no notation of year differences.

http://www.indmar.com/Libraries/Manuals/2003_to_2005_IndmarOperatorsManual.sflb.ashx

Link to comment

Has no one had to replace a 375 hammerhead from the dealer with a 383 hammerhead long block and the dealer used all the commponents from the 375 and it worked?

Link to comment

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...