View Single Post
  #10   IP: 73.100.102.161
Old 04-24-2017, 10:00 AM
southcoasting's Avatar
southcoasting southcoasting is online now
Senior Member
 
Join Date: Nov 2011
Location: Fairhaven, MA
Posts: 141
Thanks: 15
Thanked 22 Times in 13 Posts
Just finished adjusting all valves and poured more mmo into all cylinders to run the engine for a bit again...Mainly trying to see if valve adjustment would fix the cylinder #2 compression to make it match the others...

I bought a vintage set of a Sears/Craftsman Tap & Die set...ordered from ebay. Figured the steel is prob better than new sets made in China today...

I realized the other valve cover bolt was broken when I took the valve cover off and my attempt to extract it created a new hole there that is a bit off center...Should have been more careful...

So I got the new thread in and put it back together and report on the compression...

So after valve adjustment twice and more mmo, I am still getting about 80 psi at most from cylinder 2 and it won't hold the pressure...

My question then is, I suppose something is wrong with the piston rings or at worst, needs cylinder honing.

I think the carb is due for an overhaul...I am learning as I go and have learned a ton from reading on this forum. I went and started her yesterday and let it run for about 15 mins...One thing I noticed was when I open the throttle, it bogs and at one point, it died...I assume this has something to do with carb adjustment...Also ran a little crappy after...

Any suggestions?

I really did not want to do a full rebuild of this engine but seeing what others think when one cylinder is like this...All others are at 100 psi.
Attached Images
  
__________________
1971 Tartan 34C Sloop "NOVA LUNA", Rebuilt (2019) Fresh Water Cooled A4 (Bought boat in 2014)
1968 Tartan 27 Yawl "Destinada", rebuilt Old Lyme freshwater A4 (Sold boat in 2014)
Reply With Quote