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Tech Spam thread - because 1/4" BSP gets 5 hand spans to the jiggawatt

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I had a tight plug on my old LPG corolla, bit of penetrating oil and then a little bit of forwards and backwards about 100 times did the trick.

Not sure I'd recommend hot engine though as the aluminium allegedly gets easier to strip at running temp

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Get the engine hot hot. Then squirt the plug with water, or better yet freeze spray. Contract the plug and loosen it.

I met an old zhorst guy once who said that was how he undid zhorst nuts without breaking studs. Heat em up, and shrink the stud to make the nuts undo.

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Of all the shitty plugs I've dealt with on a daily basis, I've never had one strip.

Must have magic fingers.

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When I got my Volvo some arsehole had cracked one all the way in cross threaded, it was hard going to get it out, I had to seat the gasket of the new  plug in another plug hole and wrap it in tinfoil, held for a few years then came loose.

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Has anyone had any experience with mating a new auto trans to an older engine of different make?

Thinking late model electronic 6 speed auto, probably toyota sourced, behind a rover v8. 

I'd need an adaptor for the bellhousing, but how would you go about the flex plate and torque converter?

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Original flex for starter, custom torque converter to suit? , modern rover/rangie bits not fit at all? 
 

probably more fun getting trans comp to work without modern engine telling it what to do? 

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The electric side of it isn't an issue, more the physical mounting. 

Unfortunately "modern" rover stuff is all awd so no good in rwd settings. There is someone that has mixed a bmw and range rover trans to make a rwd 4 speed, which is an idea but a nice smooth shifting 6 speed would be better. 

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On 16/10/2020 at 14:27, kws said:

The electric side of it isn't an issue, more the physical mounting. 

Unfortunately "modern" rover stuff is all awd so no good in rwd settings. There is someone that has mixed a bmw and range rover trans to make a rwd 4 speed, which is an idea but a nice smooth shifting 6 speed would be better. 

If you used the rv8 bellhousing from a 4.6 on a bmw 4hp24 you can have it all working with cheap parts. It starts getting expensive when you have to make adapters and use fancy trans controllers 

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I guess if i used an RV8 bellhousing on a bmw ZF auto i could probably use the RV8 torque convertor and flex plate too, as long as the input shaft is the same?

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4 minutes ago, kws said:

I guess if i used an RV8 bellhousing on a bmw ZF auto i could probably use the RV8 torque convertor and flex plate too, as long as the input shaft is the same?

Yep just grab the lot from a 4.6 p38 range rover. The 4.6 had a the biggest torque converter that was used on the rv8. You can use the trans controller from the p38 too.

 

What are you using it in?

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Looking for options to use in an SD1 instead of the poxy 3 speed they come with standard.

Ive seen this article, but it shows its a lot harder to get it working with a BMW box than it appears, mainly thanks to the inhibitor switch and shifter. https://www.aronline.co.uk/cars/rover/cars-brown-rover-receives-zf-transplant-part-one/

I'd like to avoid stripping and rebuilding autos as the insides of them are a bit of black magic to me.

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1 minute ago, AllTorque said:

How do you get a torque converter from one trans to fit another? 

They are the same trans, 4hp22 and 4hp24

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2 minutes ago, AllTorque said:

Ah, OK. I didn’t realise rovers had BMW ZF trannys.

The zf 4hp22 and 24 was used by quite a few manufacturers, land rover, audi, jag, bmw, maserati

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32 minutes ago, kws said:

Looking for options to use in an SD1 instead of the poxy 3 speed they come with standard.

Ive seen this article, but it shows its a lot harder to get it working with a BMW box than it appears, mainly thanks to the inhibitor switch and shifter. https://www.aronline.co.uk/cars/rover/cars-brown-rover-receives-zf-transplant-part-one/

I'd like to avoid stripping and rebuilding autos as the insides of them are a bit of black magic to me.

Would you want to use the electronic or hydraulic controlled version, the hydraulic controlled version would be a very easy conversion. 

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Quick Q.

Rear brake pads have a 3 prong clip that goes inside the Piston. I see lots of replacements without this clip. Assuming it is fine without but wanted to check. Mainly so I can purchase pads from Rock Auto at a fraction of the price

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