Thread: Bonnet scoop

consider a set of bonnet vents first, let some hot air out!

Its a TDI isn;t it??,
it can't be the only one in australia that needs holes cut in it because you think its running too hot. Thats what diesels do run hot!

Having said all that , it seems like a 'hammer to kill a flea' approach if the problem is simply something electric.
AFAIK diesels do not suffer from vapour locks,

and for river crossings, you obviously have not had a good river crossing bow wave going, I don;t know where the 'splashes ' would come from. But realistically how many times would you be fording a river deep enough to drown your motor. Because after you did the check ,first by walking it, you would think twice about driving through it.

anyway thats my take on it.

john

ok, re-reading the OP, i'd take a stab that either the starter is suffering from heat soak, or both the battery cables are suffering from the heat (heat in a cable= more resistance, making it harder or impossible for the starter motor to draw sufficient current to do its job)

try replacing the +ve cable to the starter with a heavy gauge replacement made from welding cable, same for the -ve cable to the block

Originally Posted by JohnE

Its a TDI isn;t it??,

it can't be the only one in australia that needs holes cut in it because you think its running too hot. Thats what diesels do run hot!

Yes I know desils run hot....So you saying there is no point in helping it run cooler? just becasue we know they run hot does that mean we should except it or try to take measures to help it......its not the engine itslef I worry about its all the anxillarys around it such as batteries etc

Having said all that , it seems like a 'hammer to kill a flea' approach if the problemsi is mply something electric.

We THINK the problem is elctric not proven yet......rightly or wrongly I thought excessive heat can be a hindrance to electrics conduting the way they should I.e heat up someone wires enough they become less efficent....but then I could just be talking out of my arse there..as i dont have a lot of knowledge in the area


AFAIK diesels do not suffer from vapour locks,

and for river crossings, you obviously have not had a good river crossing bow wave going,

I don;t know where the 'splashes ' would come from

.
The splashes can come from unexpected holes in a long crossing or entering to quick on occasions I'm not just talking river crossings here but water holes you may pass off road
But realistically how many times would you be fording a river deep enough to drown your motor. Because after you did the check ,first by walking it, you would think twice about driving through it.

anyway thats my take on it.

john

Thanks for your take

Is it possible to adjust the hinges so the rear of the bonnet is kicked up about 1/2 inch?

I believe that would give you more ventilation than a scoop with the added bonus of no money spent and is reversible
cheers
blaze

Originally Posted by bblaze

Is it possible to adjust the hinges so the rear of the bonnet is kicked up about 1/2 inch, I believe that would give you more vebtalation than a scoop with the added bonus of no money spent and reversable
cheers
blaze

I'm not sure whther I could as when I had the bonnet off to paint it was actually quite hard to get the bonnet back on so it sat square and closed properly.......

Judging by that experience I would say possibly not as might have seating and closing issues

I'd fix the real problem (whatever that may be) instead of trying to mask it by doing something such as fitting a bonnet scoop.

Originally Posted by Utemad

I'd fix the real problem (whatever that may be) instead of trying to mask it by doing something such as fitting a bonnet scoop.

mmmmmm I think I said in my intail post that we were trying to track down the problem

I'm not sure how considering putting a bonnet scoop in is masking the issue.....when all I'm thinking of doing is trying to get a bit of airflow through a very hot engine bay

The problem we are having and have been having for sometime is tracking the starting issue, you cant fix something until you know what it is.