exhaust valves

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digcot65
Posts: 338
Joined: Sun Apr 19, 2020 1:34 pm

exhaust valves

Post by digcot65 » Fri Dec 24, 2021 2:21 pm

The exhaust valves on the friends car Im working on need replacing The new ones Ive been told are 32.4 mm across the head,whereas the ones in the car are 35.1 mm Why the difference A supplier has said the the 32.4 valves size is the only one quoted for the car Len :?:

digcot65
Posts: 338
Joined: Sun Apr 19, 2020 1:34 pm

Re: exhaust valves

Post by digcot65 » Mon Dec 27, 2021 11:56 am

Morning now Ive cleaned an exhaust valve on my friends car,there is the number 1770 on the top They are also 35.1mm dia across the head,whereas they should be 32.4mm Does anyone know where they are from maybe another Rover model Len

digcot65
Posts: 338
Joined: Sun Apr 19, 2020 1:34 pm

Re: exhaust valves

Post by digcot65 » Thu Dec 30, 2021 9:15 pm

Hello I must have had too much Christmas cheer ,just realised I got inlet and exhaust valves mixed up The valves ar the correct ones Happy new year to all Len

digcot65
Posts: 338
Joined: Sun Apr 19, 2020 1:34 pm

Re: exhaust valves

Post by digcot65 » Sat Jan 01, 2022 1:42 pm

Hello ,Ive managed to free all of the valves in the cyl head of my friends Rover and I`ve ground all the valves in .Ive just fitted the first two valves back ,with their springs and filled the chamber with petrol which lasted overnight so they`ve been ground in OK .The trouble seems to have been caused buy partly blocked waterways in the head,which Ive cleaned ..However Ill have to see if the connecting water passages are also clear in the block This is a typical case of a car being left to stand with no antifreeze in it Even in his garage,antifreeze would have helped keep waterways clearer But as I mentioned earlier he has covered 359 miles in 11 years Shame not to use a car which is immaculate.Len

digcot65
Posts: 338
Joined: Sun Apr 19, 2020 1:34 pm

Re: exhaust valves

Post by digcot65 » Sun Jan 02, 2022 3:43 pm

Which is the best company to buy cyl head valves from I know there are a couple the club recommends but the one has high prices Len

digcot65
Posts: 338
Joined: Sun Apr 19, 2020 1:34 pm

Re: exhaust valves

Post by digcot65 » Sun Jan 02, 2022 10:14 pm

Which is the best company to buy cyl head valves from I know there are a couple the club recommends but the one has high prices Len

digcot65
Posts: 338
Joined: Sun Apr 19, 2020 1:34 pm

Re: exhaust valves

Post by digcot65 » Sun Jan 09, 2022 10:54 am

Morning I have finally narrowed the problem down to just one inlet valve .When it arrived I gave it a slight grinding in to clean it,but the pitting on the seal,was so bad it would be impossible,to get it to seal .So Im waiting,to see what the supplier says .One day I will be able to continue my own restoration Len

GOY189
Posts: 514
Joined: Sun Oct 19, 2008 5:08 pm

Re: exhaust valves

Post by GOY189 » Tue Jan 18, 2022 2:05 am

Could the valve be refaced?

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