I had just closed the timing cover on a 1725 motor that I'm rebuilding having festidiously assembled it to syncronise the camshaft , crankshaft and oil pump. I thought it was correct but inuitively I made reference to this video. It was wrong. The all valuable sequence runs from 19:37 to 21:35 . It is true that the wording in all the workshop manuals that I have do not make it clear. When the cam & crank sprocket markings are in line at TDC 1& 4, the engine is actually at the No 4 TDC firing stroke: not No 1. Your video demonstrates clearly that the crank needs to be rotated another 360 degrees clockwise so that the cam marking moves 180 degrees from the original setting, The distributor drive on the oil pump is then positioned with the smaller segment at an angle of 47-49 degrees to the line of the motor. Why didn't the workshop manual simply have the timing marks at No 1 TDC . If the slot in the oil pump drive is not properly positioned it immediately creates difficulties with the distributor position because the slot os offset. Thanks for posting. A big help.
I am really glad that the video has helped you. If people only follow the Workshop Manual there are a number of things that were omitted or superseded by different advice/specification later on in production. As far as we are aware everything that we publish on The Sunbeam Alpine Channel is the final advice that Rootes settled on. Our aim is always to keep these lovely old cars running in the best condition possible. Best Wishes, Tim
@@TheSunbeamAlpineChannel A big thankyou : though my car is not a Sunbeam Alpine ,the 1725cc motor in my Australian Assembled Hillman Gazelle is the same. The reference from your 'RUclips' channel has helped me very much............... much appreciated ........ thanks again.
Nice work but just noticed at 13 mins the piston ring compressor is out of alignment slightly which can cause the tool to enter the bore whilst tapping the piston down into the bore.
Cool. What is the aftermarket parts market like. If I wanted beadwork ....for an cam (if there is even cam options). What about headers. Has anyone thrown a small turbo on the thing (if there is even room. I think keeping it oem is better but can we get this thing to 175 hp? Thx
Steve there are various cam options as well as other performance modifications, all parts are available. Some owners fit Holbay engines with twin 40 Webers. Some owners fit V6 or even V8 engines. I am not aware of anyone fitting turbos. Back in the 1960s Alpines were very successfully raced with the standard engine, it can be tuned in multiple ways. An Alpine is a very well balanced, high quality car and will perform very well with a lot less than 175.
You have made some great videos, this is certainly one of the best, very helpful to the DIY Alpine owner.👍
Thank you for your kind comment.
great video
Thank you. I hope that it helps people.
Really superb. Learnt a lot of things for when I next touch my Hunter’s 1725. Cheers
Thanks for your kind comment, glad it was of interest to you and hopefully it will prove useful.
very informative and interesting and educational video thanks.
Good, that is what we were trying to make. Thank you.
Thanks so much for this. Rebuilding a five bearing Alpine engine for my Rapier series 1. This is invaluable
I’m glad that it is helping you. If you follow the instructions exactly you should have a good engine when you are finished.
I had just closed the timing cover on a 1725 motor that I'm rebuilding having festidiously assembled it to syncronise the camshaft , crankshaft and oil pump. I thought it was correct but inuitively I made reference to this video. It was wrong. The all valuable sequence runs from 19:37 to 21:35 . It is true that the wording in all the workshop manuals that I have do not make it clear. When the cam & crank sprocket markings are in line at TDC 1& 4, the engine is actually at the No 4 TDC firing stroke: not No 1. Your video demonstrates clearly that the crank needs to be rotated another 360 degrees clockwise so that the cam marking moves 180 degrees from the original setting, The distributor drive on the oil pump is then positioned with the smaller segment at an angle of 47-49 degrees to the line of the motor. Why didn't the workshop manual simply have the timing marks at No 1 TDC . If the slot in the oil pump drive is not properly positioned it immediately creates difficulties with the distributor position because the slot os offset. Thanks for posting. A big help.
I am really glad that the video has helped you. If people only follow the Workshop Manual there are a number of things that were omitted or superseded by different advice/specification later on in production. As far as we are aware everything that we publish on The Sunbeam Alpine Channel is the final advice that Rootes settled on. Our aim is always to keep these lovely old cars running in the best condition possible. Best Wishes, Tim
@@TheSunbeamAlpineChannel A big thankyou : though my car is not a Sunbeam Alpine ,the 1725cc motor in my Australian Assembled Hillman Gazelle is the same. The reference from your 'RUclips' channel has helped me very much............... much appreciated ........ thanks again.
Nice work but just noticed at 13 mins the piston ring compressor is out of alignment slightly which can cause the tool to enter the bore whilst tapping the piston down into the bore.
We’ve never had that happen Edd but we will watch out for it in future. Glad you enjoyed the video.
What should the oil rings gap be? Thank you
As shown in the video. This is best practice to gap them in this way as the second ring helps seal the top ring.
Cool. What is the aftermarket parts market like. If I wanted beadwork ....for an cam (if there is even cam options). What about headers. Has anyone thrown a small turbo on the thing (if there is even room. I think keeping it oem is better but can we get this thing to 175 hp? Thx
Steve there are various cam options as well as other performance modifications, all parts are available. Some owners fit Holbay engines with twin 40 Webers. Some owners fit V6 or even V8 engines. I am not aware of anyone fitting turbos. Back in the 1960s Alpines were very successfully raced with the standard engine, it can be tuned in multiple ways. An Alpine is a very well balanced, high quality car and will perform very well with a lot less than 175.
I have a 1725 with one damaged piston and having trouble finding a single standard piston and rings here in the USA.
Try F.W,Thornton in the U.K. I think they might be able to supply individual pistons. Best Wishes.
@@TheSunbeamAlpineChannel thanks for the tip. They did have it and l ordered it today.
@@TheSunbeamAlpineChannel received and installed my piston yesterday and it runs great. Just in time for the car show Saturday. Thank you!
great video, unfortunately tim raymond email comes with Mail delivery faile, do someone have the exact adress?
Hi, Michel, if you want to email me don’t forget the underscore between tim and raymond. It should be tim_raymond@sky.com best wishes. Tim
What about the 1494?
The engines are very similar.