Cam timing with an adjustable gear

Merkur Scorpio / XR4Ti Technical Library - Check here for answers to common questions, problems and modifications.

Moderator: John Brennan

Post Reply
Carlisle 2020
Chazmerkur
Posts: 3
Joined: Sat Sep 21, 2019 11:41 pm

Cam timing with an adjustable gear

Post by Chazmerkur » Sat Feb 29, 2020 10:56 pm

Hi everyone. New member here and new to merkurs.

I recently acquired a 1985 merkur xr4ti rs500 replica from a friend that passed away...and his dad said he couldn't get it running because the timing was off but that's all he said.

Me and my father who was a ford mechanic in the 80s-90s worked on these apparently.we for the basic timing done. But we are having trouble getting the cam timing set? There was no mark indicating anything on the gear to where tdc should or would have been..

Any insight is appreciated.

my8950
Level 6
Level 6
Posts: 936
Joined: Wed Jan 19, 2005 11:07 pm
Location: Detroit

Re: Cam timing with an adjustable gear

Post by my8950 » Sun Mar 01, 2020 5:50 pm

pics of said cam gear? maybe its marked but you're not sure what the mark is?

Did you check timing with a light? What does it read?

User avatar
merkurdriver
Level 8
Posts: 6067
Joined: Tue Jan 21, 2003 4:29 pm
Location: Northeast Ohio
Contact:

Re: Cam timing with an adjustable gear

Post by merkurdriver » Mon Mar 02, 2020 2:09 am

Sorry to hear of the loss of your friend.
The gears usually have a 0° mark to bring them back to where the stock cam gear would normally be. Or if there are just a bunch of unmarked lines on the gear it is most likely the mark in the center. If there is nothing at all on the gear then I would try to center the bolts in the middle of the adjustable slots.

Post Reply