Bosch 044 noise Survey...
10-19-2006, 06:52 AM
#34
Originally Posted by Driftomagnifico
I can't hear my fuel pump over my gearbox, differential, exhaust, and wastegate. So as long as one of those is functioning I can't hear the damn thing.
Moral of the story is that if you complain about fuel pump noise then I hope you have tidy slippers to drag your old feet around with. Ones that are tall enough to keep your ***** off the cold pavement.
Moral of the story is that if you complain about fuel pump noise then I hope you have tidy slippers to drag your old feet around with. Ones that are tall enough to keep your ***** off the cold pavement.
I don't know if he was complaining. I think he was wondering if that noise was expected of a larger fuel pump.
10-19-2006, 09:16 PM
#35
Banned
Join Date: Jun 2005
Posts: 410
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by special tool
I don't know if he was complaining. I think he was wondering if that noise was expected of a larger fuel pump.
I had been drinking prior to that post.
10-20-2006, 01:46 AM
#36
Rennlist Member
Thread Starter
So anyhow, I used a mechanics stethescope tonight and confirmed without doubt that the tap is residing in the hard fuel lines. I'll try isolating them from the body with split hose this weekend and report back. I know you are all on the edge of your seats on this one...
10-20-2006, 01:48 AM
#37
Addict
Lifetime Rennlist
Member
Lifetime Rennlist
Member
Originally Posted by Tom M'Guinn
So anyhow, I used a mechanics stethescope tonight and confirmed without doubt that the tap is residing in the hard fuel lines. I'll try isolating them from the body with split hose this weekend and report back. I know you are all on the edge of your seats on this one...
10-20-2006, 01:59 AM
#39
Addict
Lifetime Rennlist
Member
Lifetime Rennlist
Member
Originally Posted by KuHL 951
I hope I can sleep tonight 
I hope you find it, gotta love weird noises to drive ya crazy
I hope you find it, gotta love weird noises to drive ya crazy
And change your avatar so it shows the blue car too!
10-21-2006, 04:02 PM
#42
Rennlist Member
Thread Starter
Well, I just spent the last 2 hours trying to isolate and eliminate the noise, to no avail. 
I put rubber around the fuel lines wherever they touched the body or the hydraulic lines -- from fuel rail to tank. No help at all. #$%*&^%$#!!!
I put rubber around the fuel lines wherever they touched the body or the hydraulic lines -- from fuel rail to tank. No help at all. #$%*&^%$#!!!
10-21-2006, 08:19 PM
#43
Rennlist Member
Thread Starter
Ok, I've eliminated about 95% of the noise -- probably good enough, you have to try to hear it now. It seems the noise does not come in through any one spot, but is more of a cumulative effect. The body pan seems to act like an amplifier of the pulsing in the lines. So, I got some sound deadening material at pepboys -- kind of a foil-backed tar paper -- and lined the length of the pan above the fuel lines. I also found that the fuel lines were tranferring the tapping action to the hydraulic lines, and that the rear hydrualic distributor (which is bolted metal to metal to the pan) was transferring a lot of sound . I put sound deadner under that as well. So, tomorrow I'll button it back up (may double up on the sound material first), and call it "fixed".
Edit, with the hood shut, it's virtually all gone.
Edit, with the hood shut, it's virtually all gone.
Last edited by Tom M'Guinn; 10-21-2006 at 08:43 PM.
10-25-2006, 12:17 AM
#45
Addict
Lifetime Rennlist
Member
Lifetime Rennlist
Member
Originally Posted by chilibluepepper
Tom - I'm glad to hear you chased down that noise gremlin. If the same thing happens when I fire mine up, now I know how to attack it. Thanks for your efforts! 