Boatmad.com


Reply
 
Thread Tools Display Modes
 
Old 29-07-2013, 04:25 PM   #1
Registered User
 

Join Date: Aug 2011
Posts: 92
Fuel regulatior xr2

Hi can you help? We have an old xr2 that had an old holly fuel pump and regulatior attached witch packed up throw old age!! So we have bought a new holly pump and put an inline fuel regulatior but it seems to be causing havoc with over fueling and flooding etc! Dose it have to be a pacific regulatior???? And also could we of damaged the carbs in any way???? Thanks for your time! Rob
__________________

rob lister is offline   Reply With Quote
Old 29-07-2013, 06:05 PM   #2
Registered User
 
Country: UK
Location: Surrey
Occupation: Motorsport Development inc Engine Managment
Boat make: 21ft
Engines: Various
Cruising area: Solent / Kent / Cornwall

Join Date: Oct 2011
Location: Surrey
Posts: 375
I gather you have a fuel pressure gauge? What are your readings?
__________________

beyondhelp is offline   Reply With Quote
Old 29-07-2013, 08:17 PM   #3
Registered User
 

Join Date: Aug 2011
Posts: 92
Hi we have a manual regulatior with settings from 1to5/12 psi we were told to set at 5psi but it must push 5 psi as soon as the key is on and floods may be its not up to the job??
rob lister is offline   Reply With Quote
Old 29-07-2013, 10:58 PM   #4
Senior Member
 
OCRDA's Avatar
 
Country: UK
Location: Devon
Occupation: Garage Proprietor
Interests: PowerBoat Racing
Boat name: If Only
Boat make: Bernico F3 OCR, Bernico Prototype Inboard, and some Ribs
Engines: Yamaha Pro V 115
Cruising area: UK, France

Join Date: Jan 2005
Location: Devon
Posts: 3,095
If its flooding at 5 psi you have a float needle issue !!
__________________
If Only
National Outboard Immersed Propeller Mono Record 103mph
OCRDA is offline   Reply With Quote
Old 30-07-2013, 09:04 AM   #5
Registered User
 
Hydrostream's Avatar
 
Country: Ireland
Location: Dublin
Occupation: Boatbuilder
Boat make: Hydrostream V-king, 650SS OCR ,Ring 21, Ring 18, Phantom 18.
Engines: 300Hp Mercury 2.4, 130 Yamaha, Bridgeport EFI, XR6, Merc 200.
Cruising area: Malahide, Dublin

Join Date: May 2004
Location: Dublin
Posts: 1,803
Or its not 5psi, I dont like dead head regulators as the pressure will equalize on the low pressure side if not being used fast enough.

What colour holley pump are you using? Ive never used a regulator with a holley red pump, they should be self regulating at 5 psi.
__________________
www.powermarine.ie

[SIGPIC][/SIGPIC]
Hydrostream is offline   Reply With Quote
Old 30-07-2013, 06:44 PM   #6
Registered User
 

Join Date: Aug 2011
Posts: 92
Hi it's a red top holly may be its a carb issue rather than regulator issue and it just bad timing on are part!! Do you recommend not using a regulatior at all??? Will it be ok at low speed? Any advice welcom!!! Thanks!!
rob lister is offline   Reply With Quote
Old 30-07-2013, 07:02 PM   #7
Registered User
 
The Docta's Avatar
 
Country: UK
Location: Coventry (but from Lee on Solent)
Occupation: Sales Director
Interests: My Boat of course
Boat make: Extreme 21
Engines: Merc V8
Cruising area: Solent

Join Date: Jul 2005
Location: Coventry (but from Lee on Solent)
Posts: 587
Quote:
Originally Posted by rob lister View Post
Hi it's a red top holly may be its a carb issue rather than regulator issue and it just bad timing on are part!! Do you recommend not using a regulatior at all??? Will it be ok at low speed? Any advice welcom!!! Thanks!!
If its is the right spec pump, no regulator is required. I believe Xr2s were supplied with an electric marine holly red but I believe the specs are different to a standard red.

http://www.holley.com/12-801-1.asp

http://www.holley.com/712-801-1.asp

Can't recall the specified psi but I'm sure it's on here somewhere if you search. Holley do lots of pumps though so worth checking you have the right spec. Was it bought new?

Plus, what bob said...
__________________
The Docta
The Docta is offline   Reply With Quote
Old 30-07-2013, 08:21 PM   #8
Registered User
 
Country: UK
Location: Surrey
Occupation: Motorsport Development inc Engine Managment
Boat make: 21ft
Engines: Various
Cruising area: Solent / Kent / Cornwall

Join Date: Oct 2011
Location: Surrey
Posts: 375
I just got one of these http://www.glencoeltd.co.uk/facet-48...uel-pump-1288/ and had them put in a 4/5psi spring. No regulator needed
__________________

beyondhelp is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.3

All times are GMT +1. The time now is 01:01 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
×