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The majority of the rollers will be inside somewhere then probably clinging to the magnet inside. The cup is essentially the same mate, it's the plate and casing of the diff that's not, due to having 4 holes drilled and tapped in it to hold the plate secure. You should be fine to try it...

@EVOgone heres some comparison shots of the 2 heads. Inlet ports only as the exhaust ports are identical in position. 172 inlet port: Lower down in the casting and not as wide as the 197 port. The head is upside down in this pic. 197 port: Slightly higher up in the casting and substantially...

Have you seen the difference between the 1*2 and 197 ports though? In fact what head are pms running? Is it a 1*2 one? I've just had a watch of that video you mentioned about in your pm as well. Interesting results.

How many metal filings came out when you dropped the oil mate? I imagine they've all been quite well chewed up by now tbh so any damage is already done. Fit the other diff cup and run it mate. It's not ideal, but if the box is now fucked it'll show itself reasonably quick. If your wanting to...

Are you wanting to fit the 182 diff into your gearbox then? No speedo drive gear on the 182 diff for a start and you can't just fit the part that bolts in either unless you drill and tap your original diff. It's not something I'd do tbh. Your better off getting the renfort plate off eBay and...

Must've been a split arse in the Clio. They don't check their mirrors for anything other than makeup.

Agreed. The big hp duratecs are running 52 or 54mm butterflies just to get the transition right, which is where the 197 inlet ports are similar in terms of size. The Ashford f4r on YouTube is also running 50mm butterflies, possibly bigger.

Lol afraid not mate. Tomorrow apparently. Got the oil cooler lines and fittings though yesterday.

Needs 50mm butterfly's to get the maximum out of itb's/this spec ideally, and it's only 45's available off the shelf. It's all about the transition/taper from the butterfly to the valve face, with the optimum being around 7 degrees. You can't get that with 45's unfortunately. A mate of mine who...

Its the longer primaries mate. The Clio 197 R3 maxi and maxi evo manifolds have huge primaries in terms of length. The collector will have some effect on performance but nowhere near as much as the lengths. I can measure my pms one if you like?

No worries mate.

I'd would definitely fit a set of arp's mate. It's added security and peace of mind, plus it's much easier to do when the engine is out of the car. I'm just a bell end mate. That's why I never bothered fitting any in my standard engine.

Sorry mate I've not got the time to do the swap unfortunately. It was more of a suggestion for you to have a spare in stock really.

Yeah definitely. 100% agree with that.

My original engine has been seeing 8k on standard everything...............for quite some time now. Lol! No arp rod bolts either! New engine will/should/better (delete as applicable) see 8k safely.

@MrTom let me know if you want your original box stripping down for a full diagnosis. I have some 2nd hand parts available to do the repairs. :cool:

Lol no mate. It was a slur on the fast and furious film. Lol

Yeah it'll be reet. Like you say though, just take it steady.

If it lost all 36 needle rollers, that's the main diff bearing that failed. I would imagine that when they were floating around inside the box, there were a fair few of them getting between gear teeth and wreaking havoc tbh! It could easily force the shafts apart and damage the casing without...

Yeah it'll be fine mate. Just give it a bit in 1st gear then bypass 2nd and go straight into 3rd. Easy as that.

It's the dog gear on the gear itself that's come adrift mate. Very easy repair to do but it does mean the box needs to come apart. Your looking at about £160-£170 in parts though just to do that particular job. I know these gearboxes intimately! Lol! It's demise has definitely been caused by...

Gearbox nearly finished now. :nomouth: Ok, so maybe that's not a jc5, but it's as equally unreliable. Lol! Got a full strip and refresh to do on this, then refit it. 9hrs of fun. I thank you. In jc5 129 news I'm waiting on back order parts to arrive overnight from Tokyo. Allegedly. So nothing...

Yessssss dan!!

What's up with your box currently? I may be able to help as I have stripped and rebuilt a fair few of these now. I'd stick my neck out and say that all the ones available on the market need a few new gears in them as well tbh. They might last you a year or so before anything became noticeable.

They're still available........I can get them done in smaller batches now! :wink:

What to see if he cuts through the bulkhead??? Lol!

I'm pretty sure it's a plug and play solution tbh mate.

You'll not notice much difference at all tbh. Might be slightly better on fuel at cruising speeds.

I can help with the first item on your requirement list. :wink:

Lol - quality picture! For anyone who's not had the joy of going for a drive in this car, I can confirm its a real weapon! It's deceptively quick too. We were into 3 figure in no time at all (30.3mph :wink:) and it just keeps pulling. Great car and a great conversion. Shame the owners a bell...