Oil in Doors and Sills - Page 2

roverbarmy · 4th August 2019, 14:51

Quote:

Originally Posted by ardvark

If I was to pour used motor oil inside the bottom of the doors and inside the sills my theory is that it would help slow down any rust that is in there.
Has any member done this?
Are there any pitfalls doing this?

Used engine oil is smelly, filthy and dangerous when allowed to dribble on footpaths or roads. As above, use products designed for purpose. The days of spraying used engine oil under and in the cavities of your car are long gone (thankfully). I have caught puddles of oil/diesel etc whilst riding my motorcycle in the past and would happily have "sorted out" those who had allowed it to get onto the road! Big brother is watching you!

ardvark · 4th August 2019, 14:52

Using the oil was just a thought because after a service I have engine oil.

My next question is this:- The car I just got will have rust inside the sills and inside to bottoms of the doors,tailgate etc.
What I'm after is a treatment I can do to stop this rust getting any worse.
My previous tourer had rust in the sills and no matter how I cut it out it still killed the car as far as the MOT went.
My current car which I got on Wednesday a '53 Conny SE Tourer I want to make sure the sills,doors,tailgate etc don't sneak up and kill this car.

Teflon · 4th August 2019, 15:18

Quote:

Originally Posted by ardvark

…………. My next question is this:- The car I just got will have rust inside the sills and inside to bottoms of the doors,tailgate etc...………...

Not necessarily. A few years back I bought a small inspection camera that allows you to inspect sills etc. I've used it numerous times on my own '75 (which was rust proofed from the age of 3) and also on other '75s and ZTs at meets etc. The majority have been as clean as a whistle inside the cavities.

Cliff

chris75 · 4th August 2019, 15:26

It was normal practice going back about 40 years ago . Trick was , after filling with oil you had to go and visit someone so that it dripped out on their drive

I knew of garages that offered an oil spray service for the underside as new cars used to start rusting as you drove them off the forecourt !

roy 1953 · 4th August 2019, 16:46

If cavity wax is sprayed into doors through the bottom drain holes via a lance of some sort, does it affect the inner door workings, locks, windows, etc when the wax has dried. Do the doors on these cars rust at all?.

clf · 4th August 2019, 16:59

Quote:

Originally Posted by roy 1953

If cavity wax is sprayed into doors through the bottom drain holes via a lance of some sort, does it affect the inner door workings, locks, windows, etc when the wax has dried. Do the doors on these cars rust at all?.

Take the door cards off, and spray precisely and carefully. They dont rust normally, but if they are damaged they could. The wax could act as a kind of lubricant on the joints, but equally could cause dirt to stick/build up, just as grease would. Use good sense though when doing it.

ardvark · 4th August 2019, 17:03

If I was to do the door I'd take the door cards off and spray the inside bottom of the door from above. I think doing them thru the drain holes would be spraying the stuff all over the components inside the door.
Now doing the sills may need a different approach.
What I'm after is the review of members who have done this sort of thing so I can cheat and do the job properly.

vacuman · 4th August 2019, 18:38

I think you have all the answers you need. if you have evidence of rust in the sills then get it cut out and repaired properly. Lots of threads on here about others having it done.

Once you are happy that there's no structural rust then go to town with Bilt Hamber, Dinitrol or whatever. Or find a company that can do it for you. A member on here just had hers done for around £250 @ Krown Rust proofing. Not bad when you think you will need up to £100 worth of DIY products and a fair amount of time pre-cleaning your cars underside before applying anything. Certainly the rear subframes, arms, fuel tank hanger etc. all need to be protected. Bodywork doesn't seem to suffer too much from what I've read, aside from the sills. Unless, of course, yours has been leaking for some years and has a wet floor/boot.

SCP440 · 4th August 2019, 19:20

Engine oil used to be a lot thicker than the stuff we now use, Good old 20w50 is like treacle in comparison to 5w20 or what ever you use but is still not as good as modern rust treatments.

S50 is the stuff to now use, it sticks to metal like 5H1T to a blanket and self heals.

Bernard Fishtrousers · 5th August 2019, 21:09

There was a chap in the village who owned an old P4, he would always pour his old engine oil into the pillars, the door bottoms and the sills. That car never rusted, but sadly one day when pulling off his drive into the main road it was T boned by a bus. The P4 split asunder and died in a pool of old engine oil.
That was more than fifteen years ago and you can still see the stains on the road as you drive through Castle Donington.

4th August 2019, 14:52	#12
ardvark Al 75 CDTI Tourer Auto Join Date: Mar 2009 Location: Studley Posts: 1,457 Thanks: 1 Thanked 69 Times in 48 Posts	Using the oil was just a thought because after a service I have engine oil. My next question is this:- The car I just got will have rust inside the sills and inside to bottoms of the doors,tailgate etc. What I'm after is a treatment I can do to stop this rust getting any worse. My previous tourer had rust in the sills and no matter how I cut it out it still killed the car as far as the MOT went. My current car which I got on Wednesday a '53 Conny SE Tourer I want to make sure the sills,doors,tailgate etc don't sneak up and kill this car. __________________ ARDVARK

4th August 2019, 15:26	#14
chris75 same car since 2005 2001 Rover 75 2.0 v6 Connoisseur Saloon Join Date: Nov 2006 Location: Ellesmere Port , Cheshire Posts: 3,811 Thanks: 379 Thanked 549 Times in 466 Posts	It was normal practice going back about 40 years ago . Trick was , after filling with oil you had to go and visit someone so that it dripped out on their drive I knew of garages that offered an oil spray service for the underside as new cars used to start rusting as you drove them off the forecourt ! __________________ Who said it was simples ?

4th August 2019, 17:03	#17
ardvark Al 75 CDTI Tourer Auto Join Date: Mar 2009 Location: Studley Posts: 1,457 Thanks: 1 Thanked 69 Times in 48 Posts	If I was to do the door I'd take the door cards off and spray the inside bottom of the door from above. I think doing them thru the drain holes would be spraying the stuff all over the components inside the door. Now doing the sills may need a different approach. What I'm after is the review of members who have done this sort of thing so I can cheat and do the job properly. __________________ ARDVARK

4th August 2019, 18:38	#18
vacuman Gets stuck in MG ZT-T Join Date: Feb 2017 Location: St Albans Posts: 855 Thanks: 69 Thanked 236 Times in 172 Posts	I think you have all the answers you need. if you have evidence of rust in the sills then get it cut out and repaired properly. Lots of threads on here about others having it done. Once you are happy that there's no structural rust then go to town with Bilt Hamber, Dinitrol or whatever. Or find a company that can do it for you. A member on here just had hers done for around £250 @ Krown Rust proofing. Not bad when you think you will need up to £100 worth of DIY products and a fair amount of time pre-cleaning your cars underside before applying anything. Certainly the rear subframes, arms, fuel tank hanger etc. all need to be protected. Bodywork doesn't seem to suffer too much from what I've read, aside from the sills. Unless, of course, yours has been leaking for some years and has a wet floor/boot. __________________ • This vehicle was the 8,186th ZT-T to run off the production line, out of 8,249 • This vehicle was the 1,723rd ZT-T 190 + to be made out of 1,756 • This vehicle was the 149th ZT-T in Mica Blue (Ignition) (code: JGY) to be made out of 160 Mica Blue (Ignition) ZT-Ts

4th August 2019, 16:46	#15
roy 1953 Regular poster rover 75 saloon Join Date: Mar 2019 Location: Kidwelly Posts: 59 Thanks: 4 Thanked 7 Times in 7 Posts	If cavity wax is sprayed into doors through the bottom drain holes via a lance of some sort, does it affect the inner door workings, locks, windows, etc when the wax has dried. Do the doors on these cars rust at all?.

4th August 2019, 19:20	#19
SCP440 I really should get out more....... MG ZT-T 260 Join Date: Feb 2016 Location: Witney Posts: 2,504 Thanks: 6 Thanked 910 Times in 571 Posts	Engine oil used to be a lot thicker than the stuff we now use, Good old 20w50 is like treacle in comparison to 5w20 or what ever you use but is still not as good as modern rust treatments. S50 is the stuff to now use, it sticks to metal like 5H1T to a blanket and self heals.

5th August 2019, 21:09	#20
Bernard Fishtrousers Regular poster Rover 75 Tourer Join Date: Jul 2016 Location: Castle Donington Posts: 41 Thanks: 12 Thanked 2 Times in 2 Posts	There was a chap in the village who owned an old P4, he would always pour his old engine oil into the pillars, the door bottoms and the sills. That car never rusted, but sadly one day when pulling off his drive into the main road it was T boned by a bus. The P4 split asunder and died in a pool of old engine oil. That was more than fifteen years ago and you can still see the stains on the road as you drive through Castle Donington.