How to Replace Valve Stem Seals Without Removing the Cylinder Head | Tech Tip 09

Getting a Puff of Blue Smoke on first start up? Or after idling for a while then pulling away?? Fitting new Valve Stem Seals could well solve these problems, & the good news - with the correct tools this job is possible with the cylinder head in situe. This means less time, less back ache, & if you already have access to a compressor, less expense too. Here's how.

[FastRust]

Want to know how to replace a timing/cam belt on one of these engines? Click this link:

[FirstOnRaceDayCapri]

Changed the valve stem seals on my 3.0 Capri and oh my god what a difference it made, it used to drink oil now it burns none at all, spark plugs are way cleaner now too ofcourse!

[leewalker]

I know this video was done eight years ago but you showed me something that I needed to know on a 1980 Ford courier 2.0 engine. Thank you sir. I am in America and nobody has a video that shows anything like this until now.

[adrianrainbow]

Brilliant vid'!
You can do this without a compressor, take the plug out, and feed either 16mm polyprop, or sash cord, into the piston chamber through the plug hole at BDC, then rotate the engine to TDC, which will crush the rope and stop the valve from moving, you can then compress the valve spring.
Watch out for the pinging though, those collets have been trying to escape for years.
I draped a cloth over when I first compressed the spring.
I just did this on my TD04 converted Miata.

[mitchellmeyer]

Underrated video. Thank you for showing us the install on the spare valve!

[hornetscales]

I recall an engine we rebuilt and bored. Couldn't find the valve seals at the time and the car was on the clock, so we did everything except them: We got a puff of blue smoke every time we hit the gas pedal hard. Good video, especially the last bits where you don't just edit out the trouble you had reinstalling: That merely says "if you have this trouble, you're probably not doing it wrong".

[francesco]

I had never thought of the idea of compressed air. Very informative video. Thanks a lot.

[oooooooo]

One of the best video I have seen after long time. Thank you sir! 👏 the detail (mind blowing)

[FreedomPalestineEndZioNazism]

Wow. This brings back memories of working on a baby Harley in pre uni days! Excellent job young blud!

[grahamsmith]

Fabulous information. 10/10. I put pantihose in the spark plugs hole, and turn the engine with piston up.

[kobiroar]

Love the vid mate, got a cb900 bike
That needs new valve seals but getting head set is difficult enough but to be able to do the job like you've just done.. BRILLIANT

[wheater]

I’ve done this job with the engine in the car after a valve spring broke. I get a length of 30 amp three core electric cable, curved it sideways and poked it in the spark plug hole so it went beneath the affected valve. I then rotated the engine to trap the cable between the piston and the valve, so the valve wouldn’t open. I then removed the broken spring. Using a lever I was able to compress and refit a new spring.

[HalfLibel]

I have never nor have I ever seen anyone reuse a valve cover gasket. 😂 I love it. Cool video.

[Ben-jqoo]

Excellent presentation Thankyou. Clearly explained, with professional recording/camera work.

[frankpeach]

Fantastic video. Great advice. Just done valve seals on my 1.6 Cortina. Big thank you. Next job valve seals on my 2.8 Capri. 😊

[joshmackenzie]

Thank you, excellent video, I have been struggling with an '88 351, the air compressor trick was worth millions!

[petragillett]

You're blessed to have valves that sit proud like that... im working on a Peugeot head and those seals are 3 1/4" below the surface 😡

[stephenkodz]

Very good video. Useful to see which way to turn the follower locking and adjusting nuts. Thanks

[vwivancc]

Very very good video. I have watched many times. Regards from Mexico

[bingbong-lz]

Thank you so much IV got really loads of blue smoke on me 1.6 Capri 1981 think IV over filled the oil and IV realised IV put 5/40 oil not 20/50. The Capri has been standing for 5 years in the dry garage.