Question about Datsun 210
I just bought a '74 Datsun pickup (mini-motorhome) that is showing a little oil in the antifreeze and suspect the head gasket may be leaking. How do I go about changing this? Are there any problems I can encounter? What do I have to watch for? The engine is also using a bit of oil, but by the look of it, most of that might be leaking from the dipstick pipe. Maybe the breather is plugged? I am also wondering what is the normal compression for this engine. I want to check and see if all the cylinders are the same, but am not sure what number I should be expecting. Any ideas?
As far as compresion goes it is more important that all cylanders are close to each other than what the actual psi is they should be within about 5 psi of each other. When changing the head gasket on the 620 you need to make sure that you wedge the timing chain so that the chain tensioner does not pop out. If it does you need to remove the water pump and front engine cover to replace it. A 6 inch long piece of wood tapered from about 1 inch to about 1 3/4 inch should work. Other than that it's a very easy and straightforward job. I would recomend that you take the head to a machine shop and have it checked for warp, if the engine has been severly overheated it can cause the aluminum head to warp. I know this from personal experience. If there is some warpage just have the machine shop machine it back to flat so that the new head gasket dosen't leak. If you are getting oil comming OUT of the dipstick tube replace the PCV (positive crankcase ventilation) valveThe 620 is a great little truck and the L16 L18 and L20 engines were all very easy to work on and well designed. The downfall of almost all Datsuns was body rust.
Posted on Mar 28, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Apr 14, 2014 | Datsun 720 Cars & Trucks
Jan 08, 2013 | Cars & Trucks
Jan 30, 2012 | Cars & Trucks
Aug 16, 2011 | Nissan Z Cars & Trucks
Jan 28, 2011 | 1991 Nissan Pickup
Jan 20, 2010 | Chevrolet 2500 Cars & Trucks
Oct 30, 2009 | 1997 Oldsmobile Cutlass Supreme
Jun 14, 2009 | 1987 GMC S-15 Pickup
Jun 27, 2008 | 1999 Saturn SL
992 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: