Removing And Testing The Thermostat On The Rover 75 - Is This The Source Of All Our Issues?

[@JonCoupland]

Thanks for watching this video - I really hope you enjoyed it. If you could please hit the LIKE button as this helps KZbin tell other people they might enjoy this video too. If you haven’t already subscribed please consider it too you don’t miss out on any other videos coming to the channel soon. Comment below to tell me what you thought - I aim to reply to all comments

[@alansimpson835]

I love that your dad is totally up for working on your cars on both Boxing Day and New Years Day. Clearly he must enjoy your company

[@JonCoupland]

Either that or he knows how much other stuff mum has planned for him to do!

[@hoddy121john]

Enjoyed that senior Coupland junior Coupland looking forward to the next installment .

[@JonCoupland]

Coming soon!

[@baccas66]

If dad didn't suffer enough when Jon went through adolescence. Now he's starring in Scrapheap Challenge lol

[@JonCoupland]

Teams ... you have 10 minutes remaining

[@yorkshire6458]

Here in Germany we use mostly antifreeze parts and less water because of the rust that water produces and also for Winter plus also the airconditioning should be redone plus filling new so both sides work properly plus what should be watched is water from the airconditioning underneath the carpet Driver and passenger side affecting the cables as part of the cabletree is there

[@stewartturner814]

Great bit of old school mechanics there testing the thermostat 😊

[@JonCoupland]

Indeed 😊

[@CarzwithJC_]

Replace the coolant temp sensor mate. It's always a worthwhile part to change, and it's like £10. All the parts are on Discount MG Rover Spares. Great video, as always 🧰😃 Also, the thermostat is 100% gone. I'm glad to see you are replacing it.

[@JonCoupland]

Great advice! I'll get one ordered

[@CarzwithJC_]

@JonCoupland Perfect. I have sent you a PM on Facebook with some links to parts you will need. Hope it helps 🙌🔧🤗

[@johnmoruzzi7236]

I think the orange gunk is probably just rust from steel / iron bits of the system being exposed to old ineffective antifreeze and air that has been let in and trapped. I’ve had the same repeatedly on my Fiat Bravas with the alloy FIRE 16v engine… they get neglected and then bodged. My 1.8 has the revised PRV thermostat arrangement, in a mess of hoses at the front of the engine at the bottom of the radiator, I replaced it with a higher temp new one and it now reads above halfway on the temp gauge. The corrosion and crud around the frame rails indicates a lot of released water that was trapped by the undertray.

[@paultaylor9652]

Absolutely brilliant pairing father and son combination. I hope you sort this Rover 75 out as it looks quite a tidy car.

[@JonCoupland]

Thanks for your kind words. Were just enjoying the process

[@jamesmarriott750]

Have to say that orange deposit looks like old k-seal, rad weld or similar mixed with the usual rust from unside a 20+ yr old engine. A previous bodge perhaps?

[@JonCoupland]

It's a possibility

[@Ad-gn8pl]

14:34 "Is that the problem???" I could see your dad saying "it's ONE of your problems.....😂"

[@JonCoupland]

😂😂

[@porsche356a]

I think your whole cooling system needs a 'boomin good scrub"

[@JonCoupland]

😂😂 that is what I said

[@markramsay6399]

Epic video - love this !! mark

[@JonCoupland]

Thanks for watching

[@Cayres9]

Also K-seal is good stuff had a Skoda Felicia and the head had gone on it , local garage for £20 put the K-seal in and that cheap fix lasted me 12 months before it went bang completely lol the car was not worth anything so was good for me as it let me save the cash for a new car at the time lol

[@caspardelint3511]

Keen to see the heater matrix flushing job

[@JonCoupland]

It's coming ... But fair warning the actual 'flush' didn't film correctly. BUT we have a video coming

[@kevincraven4038]

I don't need a dad to crawl under my car and moan, I do that myself! 😂

[@neilthorpe3914]

Hope your mum likes k seal tea 😂 Great video thanks.

[@JonCoupland]

She hasn't noticed yet 😂

[@bradjohnson1627]

Great birthday present for me, thanks 😊😅

[@JonCoupland]

Happy birthday for when we get there 😅

[@garymorris801]

Very good mate your dad is a funny guy😅

[@JonCoupland]

He's entertaining a lot of folk

[@jbz2079]

That if your lucky will have a blown head gasket. That sticky brown goo is most likely K-seal or radweld. New radiator, recent thermostat, its been overheating and they have tried bogdges to fix it. Hopefully it is the head gasket otherwise something has a crack in it, head or block. Also while you are in there check the waterpump, sometimes the impeller falls off it's shaft or cracks and no longer pumps, even though the drive still turns.

[@JonCoupland]

I don't want to spoil the series for those following it ... But it wasn't the head gasket :)

[@Thefog666]

How did you flush the heater matrix?

[@JonCoupland]

We tried a few different methods, firstly we tried to unblock it by using a jet washer, this didn't work, then we tried a washing up liquid solution which removed a slight amount. In the end a drain cleaner solution did the trick. There are other videos in the series where Dad is playing around with the Matrix :)

[@Thefog666]

@JonCoupland ah brilliant. I stuck a hose down one pipe and tried to flush it out. But didn't make any difference lol, I'll try your method, I've got a 1,8 04 plate, and since having it I've had constant problems, I'm using my dad's 75 now as he's just bought a jag instead haha,

[@scoobydooz6575]

I've seen the propellor on the water pump just spin on the spindle, as in its not fixed to the water pump spindle, I've had this problem on an MGF, same engine and components, that thermostat is a right pain of a job in comparison to other cars

[@JonCoupland]

Thankfully all good here

[@badbooks476]

Nice work, does dad get treble time on New Years Day ? At least the Stat housing isn’t cracked. Look forward to the next instalment

[@JonCoupland]

3x as many cups of tea

[@Jaxs2]

It's aways interesting to find out what has been messed with in older cars , it's amazing really 😄 there so called cover ups 😉

[@JonCoupland]

Absolutely. A bit of car related detective work

[@mrstanhope1516]

Nice cup of radweld infused tea afterwards was it?!

[@JonCoupland]

Yes it was!

[@derekmillar318]

Impeller on the water pump shaft may be loose?

[@JonCoupland]

Its been tested - more videos to come :)

[@Phil-1969]

I think once it’s all back together and you have put a few miles under its belt , you will be back to square one and doing that head gasket, I hope I’m wrong

[@JonCoupland]

If we have to do it. We have to do it 😀

[@Phil-1969]

I’m watching at the same time, that’s had the dreaded K seal put in it as you have just said , it’s got that copper look to it, I’ve used it a few times it definitely is Dad lol😂

[@tazpoochie]

Very entertaining . Thanks

[@JonCoupland]

@@tazpoochie glad you enjoyed it

[@shaunhewitt]

Wonder if someone's put rad weld in it at some stage that's why it's sticky to touch 😮

[@JonCoupland]

I'm thinking that

[@yorkshire6458]

As usaul some one has used too much water to antifreeze parts and your Thermostat is rusted and Pipes are brown colour meaning rust aswell

[@JonCoupland]

So it appears!

[@JC-hu1wd]

Curious scenario. It was gunked up. Maybe the water pump is faulty. Best change all suspects.

[@JonCoupland]

Absolutely

[@metalman4141]

Dangling carrots isn’t always a good thing !

[@JonCoupland]

I'm not sure what that means 🤣

[@andrewnewton5893]

Thats had k seal cucked in it if take water pump off they normally clock round them and water pump could still spin but dont mean propella enging side is may have snapped lol if doing head gasket shove new timing belt lot on it lol 😆

[@JonCoupland]

Excellent - will do that next

[@MrJohnberth]

It will be the head gasket.I had the same problem on my Rover 45.

[@JonCoupland]

Head gasket has not failed :)

[@Mickhanic-garage]

Thermostat on these are a real pain to get at

[@JonCoupland]

They blooming well are

[@Mickhanic-garage]

@@JonCoupland even worse in an MGF!!

[@mrcogginsgarage7062]

Whilst I'm not wishing to teach your Father to suck eggs Jon, you might just check that the coolant hasn't made its way into The crankcase and is mixing with the engine oil ,also don't put drain cleaner anywhere near your cooling system,best thing is a good dose of Vanish. Good luck both and A Happy New Year to you all.

[@JonCoupland]

Ill pass the message on - always good to share the knowledge!