Nissan H20 Valve Stem Seal Replacement with Cylinder Head On
Channel: Stephen Rivett
Date: 2021-07-19

In this video I use an air compressor to change the valve stem seals on a TCM FG25N2S Nissan H20 engine with the cylinder head still installed.  4 of the 8 seals had been broken in half and I was getting a lot of blue smoke despite having excellent compression.  Prior to doing this job I did clean the top end of the cylinders using sea foam.

Affiliate Links:
-Valve Spring Compressor, OTC:  4573, https://amzn.to/3Bd7A10
-Bosch Compression Tester: 7828, https://amzn.to/3i1lHO7
-3/8" Drive Torque Wrench:  Various, https://amzn.to/2TnaBLh
-Oil Can:  Various, https://amzn.to/3xS7f1O
-Magnet Pickup Tool:  Various, https://amzn.to/3exVPbG
-Feeler Gauge:  Various, https://amzn.to/3kxSzRF
-Sea Foam Top End Cleaner:  https://amzn.to/3ezxZwy
-Valve Stem Seal:  13207-66712
-Valve Cover Gasket:  13270-E3400, https://amzn.to/3zeEdd4
-Denso Spark Plug: W20ES-U, https://amzn.to/3zeFctM

Manuals:
-Engine Parts:  https://archive.org/details/tcm-parts-manual-engine-nissan-h-20-a-4-gr-m-4-gr-a-4-r-m-4-r-11-12-13-14-15-pe-
-Service Manual:  https://archive.org/details/tcm-service-manual-forklift-truck-fg-23-fg-25-fg-28-fg-30-fd-23-fd-25-fd-28-fd-3
-Service Manual:  https://archive.org/details/tm-10-3930-653-14-p-tcm-fg-30-n-7-t-forklift-truck-nissan-h-20-engine-service-an

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