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Darth V8Rs project  Rating:  Rating
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 Posted: 05-25-2025 10:09 pm
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redracer
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If the nose of the impeller is not touching the back of whatever, then it's definitely NOT the 1st or 2nd generation. My guess then would be the 3G, but whatever it is is better than the original(1G) seal, so you should not have to worry about an "explosion".

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 Posted: 05-28-2025 01:35 am
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vnavaret
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Arrrgh!

Another delay on the Healey engine. =:-(

Got a call from the machinist - He found a crack in my head after skimming it. <mumble>

It is a relatively benign crack, from a water jacket opening. Apparently small, but of course I do not want to permit it to spread. I could take a chance and install the head as is, but I would be waiting for my motor to puke coolant into the combustion chamber.

I told him to Heliarc it and then reskim it. He said it would add to the lead time on my motor.

Well, the sun is only expected to burn for another three billion years, I guess I can reassemble my motor IN THE DARK.

Grrr,

Vance

Last edited on 05-28-2025 01:37 am by vnavaret

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 Posted: 06-04-2025 06:01 pm
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vnavaret
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Lads -

A minor update on Rusty...

I have learned that the engine torque damper can cause cracks in the firewall if it seizes. Thankfully mine has not seized, but the bushes are shot having cracked and a few bits have fallen out. It is important that the damper be functional or you will end up needing to weld your firewall. I have seen some photos of such cracks on the Jensen Owner's Club site.

After some research and a few dead ends, you have some options if yours has seized: 
  1. Remove it and live without one - supposedly no issues arise doing this although the owners who have done it also state that they replaced the Jensen motor mounts with Land Rover Discovery mounts which are much more stout.
  2. Replace it with an aftermarket unit such as the Stabilus 73DR52J unit. I have not tried this, but my research says that this is a functional, compatible equivalent. Martin Robey says the original damper is NLA, so you can't just pop in a new unit.
  3. Get yours freed up, and if it still damps, you can replace any damaged bushings as I have with a set of urethane bushings.
I used a vise to press in the new bushings, and reused my existing sleeves. You must cut the bushings to length as they are a generic set. The part number is shown in the photo, but may be hard to read. Energy suspension 9.9176G.

Cheers,

Vance

Attachment: IMG_0644[1].JPG (Downloaded 8 times)

Last edited on 06-04-2025 06:15 pm by vnavaret

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