cruiser262
Seaman Apprentice
- Joined
- Aug 2, 2012
- Messages
- 37
Hi there
i have an issue,i have a 7.4 GIPWTR ,low pr fuel pump which died.I installed a new one sn 3858261.When just freshly installed it started making a loud noise at minimum(not whining)like it was always running and very fast,getting very hot at idle,cooling down at high rpms.The old pump never did it.
The engine between 3200 started stubbling but as soon as i increased the throttle to wot no problems,when back around 3000-3200 same problem and all of a sudden back to normal....
I went back on volvo penta website and i discovered that the pump i bought was coming under two serial numbers,the one i bought 3858261 is for small blocks 5.7 and smaller and the other 3858714 for V8 big blocks 7.4 and bigger like mine.
Can be the problem the engine is giving me now related to that?Is any difference among the 2 pumps in terms of voltage output etc?
Many thanks
Cruiser
i have an issue,i have a 7.4 GIPWTR ,low pr fuel pump which died.I installed a new one sn 3858261.When just freshly installed it started making a loud noise at minimum(not whining)like it was always running and very fast,getting very hot at idle,cooling down at high rpms.The old pump never did it.
The engine between 3200 started stubbling but as soon as i increased the throttle to wot no problems,when back around 3000-3200 same problem and all of a sudden back to normal....
I went back on volvo penta website and i discovered that the pump i bought was coming under two serial numbers,the one i bought 3858261 is for small blocks 5.7 and smaller and the other 3858714 for V8 big blocks 7.4 and bigger like mine.
Can be the problem the engine is giving me now related to that?Is any difference among the 2 pumps in terms of voltage output etc?
Many thanks
Cruiser