£600 Rover 75 Connoisseur SE, 2.5 v6

£600 Rover 75 Connoisseur SE, 2.5 v6

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PrinceRupert

Original Poster:

11,575 posts

87 months

Sunday 10th July 2022
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So given the state of those o rings, not shocked the fuel injectors were leaking. Three new viton o rings and they no longer seem to be leaking. Bled the coolant as suggested above and took for a quick spin and seems to hold temperature fine. Sure it will be a few journeys before I trust it...

There seems to be a slight clunking noise from the osr, wonder what that is...

PrinceRupert

Original Poster:

11,575 posts

87 months

Monday 11th July 2022
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Any idea what this is? Found it in my undertray when recovering my magnetic stick that I dropped down there. Also found the coil pack nut I dropped, but my 10mm socket was of course nowhere to be found ...

PrinceRupert

Original Poster:

11,575 posts

87 months

Thursday 14th July 2022
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It was pressed back into service on the commute today. After what was a reasonably big job for me, I was a little nervous that it was going to overheat in the Blackwall Tunnel, but it performed admirably.

I quite like the juxtaposition in the office car park:



The hot weather over the last few weeks has done a number on the headlining, which was drooping in places before but is now drooping in many more places.

Another problem I've had for a while is a slightly jerky gearbox, seemingly between 1/2 or 2/3. That seems to be getting worse, with quite a firm jerk on certain low gear changes. From a bit of searching, it seems to be a fairly common problem with Jatco gearboxes and may be a couple of solenoids that can be changed easily enough - though without Rover diagnostics, not likely to know which ones. If I just leave it, is it likely to stop working altogether at some point or simply continue to clunk?

PrinceRupert

Original Poster:

11,575 posts

87 months

Thursday 14th July 2022
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itcaptainslow said:
Has the gearbox ever had a fluid change?
Not in the last two years with me and I have no history.

It seems this is a specialist endeavour with requiring the autobox at a certain temperature etc., and not something straightforward to DIY or to get my local garage to do?

PrinceRupert

Original Poster:

11,575 posts

87 months

Tuesday 2nd August 2022
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So the 75 is driving well, holding temperature even in heavy traffic, no issues in that regard.

The coolant level does however seem to drop intermittently - some journeys it won't drop at all, some it will drop from max to min. These are generally short journeys which is all it has been used for recently. I have looked around with a torch and can't see any obvious evidence of fresh leaks from the thermostat and associated tubes, or from the radiator elsewhere. Could it be air burping its way out of the system as it is being used and driven?

PrinceRupert

Original Poster:

11,575 posts

87 months

Tuesday 2nd August 2022
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itcaptainslow said:
Possibly-did you fill and bleed the system with the expansion tank unbolted and raised?
I unbolted expansion tank, raised it and ran engine to hot in an attempt to bleed the system. Perhaps it wasn't that effective?

PrinceRupert

Original Poster:

11,575 posts

87 months

Monday 22nd August 2022
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The coolant level appears to have stopped moving, which is great - must have been some residual air that is now burped out.

I'm also planning on getting the welding at the osr front sill attended to, and have the gearbox oil changed. Amusingly, it is my mobile TVR specialist that has agreed to attend to it - who is cheaper per hour than my local backstreet garage, who didn't fancy doing the welding!