timing chain

Post Reply
digcot65
Posts: 360
Joined: Sun Apr 19, 2020 1:34 pm

timing chain

Post by digcot65 » Fri Apr 29, 2022 3:41 pm

As Ive mentioned I have been helping a friend with his 1947 Rover 12 .He first contacted me because his car engine sounded awful I removed the head and a couple of valves were sticking in their guides.One was slightly bent after coming into contact with the piston .I rebuilt the head and it was great When he fitted it back on as soon as he started the engine it sounded rough ,and he reckons a valve is bent again This points to the timing chain jumping .How to I tell when the two toothed timing wheels are in their correct position in relation to each other There are usually marks to line the wheels up Len

digcot65
Posts: 360
Joined: Sun Apr 19, 2020 1:34 pm

Re: timing chain

Post by digcot65 » Fri Apr 29, 2022 7:22 pm

Thinking about my friends problem.If I check the number 8 tappet is at its highest point of lift,then the flywheel should show the TDC line no 1 piston TDC Len

TonyG
Posts: 288
Joined: Mon Sep 07, 2015 4:38 pm

Re: timing chain

Post by TonyG » Sat Apr 30, 2022 9:02 am

Len,

I don’t think I’ve ever known a double timing chain jump a tooth. It’s not like a timing belt, after all! However, if it did, then surely more than one valve would be affected? Suggest you start off by checking the compression etc and ignition timing. Does the car have fresh petrol as this will make a big difference.

Tony
Tony Gilbert

P1 12 Tourer
P2 12 6 Light Saloon
Discovery 3
Discovery Sport

User avatar
luli
Posts: 646
Joined: Sat Jun 04, 2011 6:49 am
Contact:

Re: timing chain

Post by luli » Sat Apr 30, 2022 4:52 pm

Len,
Please follow the Rover instructions. Step by step. Don't try shortcuts. If you find something not clear in these instructions, please ask pointing to the exact section.
Rover 10 1946 RHD
Rover 10 1947 LHD
Rover 12 1947 tourer LHD
http://lulisml.wordpress.com/

Post Reply