When is a hole - not a hole
Posted: Wed May 29, 2019 12:01 pm
For those that know, i had a new fuel tank made recently...this tip may be of use to others along the line.
The guy that made the tank did a nice job and it was fitted last week down at Snodhurst.
Was a bit surprised at how noisy the new pump was, but time was short so i whizzed off home.
By the time i got home i had some worries....the car was running fine, but the noise from the pump was concerning me.
The guys kindly found time yesterday to take a look, given that i'm away on Tour this weekend. After various tests to prove where the issue was it became clear that the pump was struggling to get enough fuel to run flat out ( the pump not the car); It had enough for the car to behave, but not enough to 'soak it'.
After a bit of measuring, turns out that the 8mm outlet has an i/d of 4mm......I asked the tank fabricator what it was supposed to be ...'5.5mm'.
To a muppet like me, i'd never thought to question/check what the i/d would be that he was fitting, i kind of assumed 8mm = 8mm, and the i/d would be 'standard', clearly not.
Sooo 2 things.
First, big thanks to the guys at Snodhurst for reinstalling the external swirl pot system to overcome the issue ( will revisit the tank issue after the trip ).
and second.....next time you're spec'ing something like this, worth double checking little details....
The guy that made the tank did a nice job and it was fitted last week down at Snodhurst.
Was a bit surprised at how noisy the new pump was, but time was short so i whizzed off home.
By the time i got home i had some worries....the car was running fine, but the noise from the pump was concerning me.
The guys kindly found time yesterday to take a look, given that i'm away on Tour this weekend. After various tests to prove where the issue was it became clear that the pump was struggling to get enough fuel to run flat out ( the pump not the car); It had enough for the car to behave, but not enough to 'soak it'.
After a bit of measuring, turns out that the 8mm outlet has an i/d of 4mm......I asked the tank fabricator what it was supposed to be ...'5.5mm'.
To a muppet like me, i'd never thought to question/check what the i/d would be that he was fitting, i kind of assumed 8mm = 8mm, and the i/d would be 'standard', clearly not.
Sooo 2 things.
First, big thanks to the guys at Snodhurst for reinstalling the external swirl pot system to overcome the issue ( will revisit the tank issue after the trip ).
and second.....next time you're spec'ing something like this, worth double checking little details....
