£600 Rover 75 Connoisseur SE, 2.5 v6
Discussion
The thermostat change is much, much easier removing the inlet manifold. It's not particularly difficult, just time consuming and a little fiddly. The Haynes manual guide is excellent for it-if you haven't got one I'd suggest investing.
Make sure you ensure all the mating surfaces are scrupulously clean, and get some manifold o-rings, manifold to head gaskets and injector seals (you have to remove these from the lower inlet manifolds) from DMGRS or similar. Some multi purpose grease to ease everything back together helps, too.
It's also worth renewing the coolant temperature sensor which sits in the vee whilst you're there.
When you refill the cooling system afterwards it's very important to remove the expansion tank and raise it above the level of the cylinder heads when refilling & bleeding to avoid air locks.
Make sure you ensure all the mating surfaces are scrupulously clean, and get some manifold o-rings, manifold to head gaskets and injector seals (you have to remove these from the lower inlet manifolds) from DMGRS or similar. Some multi purpose grease to ease everything back together helps, too.
It's also worth renewing the coolant temperature sensor which sits in the vee whilst you're there.
When you refill the cooling system afterwards it's very important to remove the expansion tank and raise it above the level of the cylinder heads when refilling & bleeding to avoid air locks.
300 quid to get suspension arm fitted for MOT. Now need to do thermostat.
Tried to do keyhole method by removing throttle body, air box and battery but there was no hope of undoing the relevant bolt. Seems someone replaced it before and used an allen key headed bolt rather than a normal bolt and just couldnt get a tool into it. So manifold off it is.
This is the most involved mechanics job ive probably ever done so lets see how it goes. Got it mostly apart though still need to work out how to get to the three rear bolts on the front exhaust manifold. There are a lots of bits off the car and not convinced ill get them all back on.....
Will need to order the various gaskets and o rings.
Did the three rear spark plugs whilst im in there - they are almost impossible to do with the manifold on and are overdue a change
Tried to do keyhole method by removing throttle body, air box and battery but there was no hope of undoing the relevant bolt. Seems someone replaced it before and used an allen key headed bolt rather than a normal bolt and just couldnt get a tool into it. So manifold off it is.
This is the most involved mechanics job ive probably ever done so lets see how it goes. Got it mostly apart though still need to work out how to get to the three rear bolts on the front exhaust manifold. There are a lots of bits off the car and not convinced ill get them all back on.....
Will need to order the various gaskets and o rings.
Did the three rear spark plugs whilst im in there - they are almost impossible to do with the manifold on and are overdue a change
Rear plugs are do-able with the manifold on; there’s an access panel in the bulkhead that comes off. Four(ish) plastic thumb screws, then another four(ish) 8mm bolts.
DMGRS do a kit with all the seals. Use some multi purpose grease on the injector seals and green manifold o-rings to make refitting easier and less likely to tear the seals.
DMGRS do a kit with all the seals. Use some multi purpose grease on the injector seals and green manifold o-rings to make refitting easier and less likely to tear the seals.
It is apart. It isn't obvious from looking at the old thermostat housing where it is leaking from. Let's hope it is the thermostat...
This little metal pipe had some pink goo around it and doesn't look healthy. Any ideas for a fix?
Currently cursing as the new rigid pipe that sits beside thermostat won't bloody fit. The rubber sealing ring is too bulbous and no amount of force will get it in. Any ideas? Otherwise the old one will be going back on....
This little metal pipe had some pink goo around it and doesn't look healthy. Any ideas for a fix?
Currently cursing as the new rigid pipe that sits beside thermostat won't bloody fit. The rubber sealing ring is too bulbous and no amount of force will get it in. Any ideas? Otherwise the old one will be going back on....
Spinakerr said:
Silicon spray should help, or perhaps leave it in the summer sun for 20 minutes to get a but more pliability.
That rigid nozzle looks a bit scabby - and holes at the base that would explain the OAT fluff surrounding it?
Yup though I don't think that rigid nozzle was the primary leak, too much fluid and given where it is I would have seen it. I am not sure how to fix it though...That rigid nozzle looks a bit scabby - and holes at the base that would explain the OAT fluff surrounding it?
I'm not overly familiar wiht this engine but it may be the case that some careful wire brushing, treatment and JB weld-type product would hold it together. It is work diving into the dusty archives of the 75 and ZT forums to see if any of the wixards knows of a trick to remove & replace...
Thank you. Fortunately it is in a location which would allow it to get fixed even when everything is back together.
Managed to get the rigid pipe in, but had to take the second inlet manifold off which I had been trying to avoid.
Need to go order another manifold gasket before I can attempt to put the rest back together ...
Managed to get the rigid pipe in, but had to take the second inlet manifold off which I had been trying to avoid.
Need to go order another manifold gasket before I can attempt to put the rest back together ...
So it is all going back together. Two problems:
I have snapped the bloody crankcase breather, 40 quid for a new one. I also can't remember where it goes and how it is routed. Anyone know where I can get an image of the route? Google is not helping.
I have a spare plug that I can't find a home for next to the throttle body. Any ideas?
I have snapped the bloody crankcase breather, 40 quid for a new one. I also can't remember where it goes and how it is routed. Anyone know where I can get an image of the route? Google is not helping.
I have a spare plug that I can't find a home for next to the throttle body. Any ideas?
PrinceRupert said:
I have cruise control, do you know where the plug is? Cannot bloody find it.
It is the blue circled end im not sure where goes
I’m fairly sure that plugs into the rear bank camshaft cover, but I’d need to check mine first! Will do that a bit later this evening when I have a chance and report back.It is the blue circled end im not sure where goes
You’re welcome to PM me and I can FaceTime you my engine with the top cover off, if it helps.
itcaptainslow said:
I’m fairly sure that plugs into the rear bank camshaft cover, but I’d need to check mine first! Will do that a bit later this evening when I have a chance and report back.
You’re welcome to PM me and I can FaceTime you my engine with the top cover off, if it helps.
Thanks for the offer. I found it. Hidden by the inlet manifold. Taking the bolts off the inlet manifold let me lift it enough to get it in with a lot of swearing, but route was wrong and it snapped trying to take it out. So inlet manifold off again it is. Fml.You’re welcome to PM me and I can FaceTime you my engine with the top cover off, if it helps.
40 bloody quid for three plastic tubes delivered...
https://www.dmgrs.co.uk/products/kv6-9mm-small-bre...
https://www.dmgrs.co.uk/products/kv6-9mm-small-bre...
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