knocking sound on take-off/stromberg airbox
Posted: Mon Jan 28, 2008 8:43 am
Hi all,
After I have just solved my run-on problem by adding some Wynn's engine cleaner to the fuel tank I am on my last?? fault that I have had for a while but not cured yet. Although I am pretty sure I know what it is.
On take-off and reversing the engine torque tilts the engine over that the airbox of my stromberg engine hits the inner fender.
I suspect that it hits just in the crease of the fender where the cap between the box and the fender is only about 10-15mm at the most.
I have checked all the mounts and they are all Ok.
the engine sits absolutely 100 level across and lenghtways.
On the exhaust side I put some spacers of about 10-12mm in place in order to clear the exhaust/chassis and if I look at the back of the engine I have an even gap for the gearbox bellhousing on either side.
It all looks OK. I have been thinking of tilting the engine towards the carb side but the engine would not sit level anymore ( do weber engines sit level??) and secondly the carbs themselves might hit the bonnet.
I run the car at present with a K&N cane filter directly mounted to the GRP airbox and I have noticed that there is already some slight rubbing going on on the tip of the filter so raising is not an option.
So I am thinking of cutting a piece out of my beautifull reglassed and 2 pot painted box to make some more room between fender and airbox.Bugger!!
Any suggestions or comments are welcome. I researched the site but could not find a satisfactory answer to my problem so that is why I decided create a new topic.
Cheers
Robin
After I have just solved my run-on problem by adding some Wynn's engine cleaner to the fuel tank I am on my last?? fault that I have had for a while but not cured yet. Although I am pretty sure I know what it is.
On take-off and reversing the engine torque tilts the engine over that the airbox of my stromberg engine hits the inner fender.
I suspect that it hits just in the crease of the fender where the cap between the box and the fender is only about 10-15mm at the most.
I have checked all the mounts and they are all Ok.
the engine sits absolutely 100 level across and lenghtways.
On the exhaust side I put some spacers of about 10-12mm in place in order to clear the exhaust/chassis and if I look at the back of the engine I have an even gap for the gearbox bellhousing on either side.
It all looks OK. I have been thinking of tilting the engine towards the carb side but the engine would not sit level anymore ( do weber engines sit level??) and secondly the carbs themselves might hit the bonnet.
I run the car at present with a K&N cane filter directly mounted to the GRP airbox and I have noticed that there is already some slight rubbing going on on the tip of the filter so raising is not an option.
So I am thinking of cutting a piece out of my beautifull reglassed and 2 pot painted box to make some more room between fender and airbox.Bugger!!
Any suggestions or comments are welcome. I researched the site but could not find a satisfactory answer to my problem so that is why I decided create a new topic.
Cheers
Robin