7 mm exhaust valve collets

[Andy Plunkett]

Can any one help me find a set of 7 mm exhaust valve collets, 2 ridge. I keep ordering them from different places and they send me ones for 8 mm stems which are too big and that is why my engine dropped a valve because some one else had fitted the wrong ones. I understand R4-5and 8 have the same 7 mm stems. Andy

 

[mr-reno-139]

You haven't mentioned engine size presumably 845 ?

 

[Andy Plunkett]

Yes a 845 ventoux engine. Agriculturalised version sold as a kit with a Juvaquatra gearbox. Main difference being the head . Which has the water pump mounted on the front , not at the back as on the rear engines cars. So have had head repaired and just need 7 mm collets to fit exhaust valves.

 

[mr-reno-139]

As far is I know all venous engines had pump at flywheel end

 

[Andy Plunkett]

This is the Bene vineyard tractor it is mounted in. 1961 from perrion in france

 

[Andy Plunkett]

Yes all ventoux had pump at flywheel end except the agriculturalised version. That's why I had to spend over £400 getting the head wealded and repaired. Any idea where I can get a set of 7 mm exhaust valve collets? Not worried if second hand.