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Different timing chain cover, could indicate wrong cover or even wrong gasket used, or even just a sticky relief piston.

He hasn’t said if he’s replaced them.

Oil pump gear Cover plate is brand new one that you use gasket with.

Think there are a load off ppl like this mate, then when they pass family me,bets end up skipping stuff as they have zero idea of what they are for. Its one of the main reasons my Son was so involved in everything I do, so that he has a rough idea of how much money I have wasted 🤣

Interesting point, the Birmingham Motorcycle Museum, most bikes where donated to them, by families. Deceased relatives etc, some have a nice wee story on a plaque, and it is a privilege to see them, some works of art, the engineering is unreal. But sad all the same, as they don't get used. After all they are a machine, a mechanical device. But majority of people have no interest, as they are not the easiest machine to operate. Sad all the same to see them unused, enjoyed, being part of someone's life, Always remember seeing the Norton V8 concept bike now getting revamped by Henry Cole and team. Also the Norton Rotary racers from the early 90, amazing machines with no engine braking 🤔🥵 But all beautiful bikes all the same. The joy it must bring to others seeing something that someone they knew once owned, the memories and happiness evoked, makes it all worth it.

i wasnt realy intending to ! bought it when it was fairly new in 1994 for £1300. carnelian red . drove it as my almost daily driver until i bought my omega in 2015. not been on road since but all ready to go maybee next summer ( or wait another year for free tax !) same issue with the viva realy . not realy intend selling it (yet) bought it in 90 with around 40 odd k. now only about 10k extra but excellent condition and mostly orig paint ( still orig inner wings and sills) problem is with having 5 they dont all get used much and when i go they will all just go straight to the scrapyard no doubt which is a shame with all my parts collections too . dont think mh brother will be interested in trying to sell them on he ( like most prople) think old cars and stuff are worthless . he has numerous spares for a landrover fc 101 forward control that he once owned but never puts them on ebay cos he doesnt think anyone would want them despitd their rarity !

It’s the run up to Xmas and winter fuel money is being saved, no one will buy anything now unless they have the cash saved already. @cam.in.head no point selling your Carlton, the values are still in the floor. I’m holding onto mine for as long as possible

yeah 20/50 (or even a 40 grade should be perfect) cant comment on anything thinner as i never use any . as originally asked thou . was the oil pressure ok before you did the head ? and if the timing case has already been changed . what was the reason ?

It’s pretty generic to what the Germans churn out. Can understand why the SRB as original is so appealing to most. For me, if going 400, go 400. If wanting to be GTE go GTE. But trying to something other wise just misses the point and us way too much I-s fast car magazine.

Ah, cool indeed. Then for sure he’s going to finish the little bits 👍 Interestingly, what we used to focus on (port size rather than bowl design, valve seat angles etc) yield far more than originally know since testing, dyno results and modelling. So lots to be learned from modern engines that is still relevant to the old lumps, but most of what I apply to engines is based on info gained from the bmw M12 development as that even in the N/A guise was about cylinder fill at the lower lift. CIH engine is a great design, it just suffers from the crap (think 50bhp per L) design of ports in the head. Hence why the the special Crossflow head (still 8v, pre Cosworth) gave great results even in the low efficiency era . Read https://www.opelgt.com/threads/cross-flow-head-cih-engine.10420/

Think I'd stick with the market place Mantas..... But nice to know.

With 20/50 pressure should be good. losing it somewhere for sure. Go with your gut here I reckon with timing cover. I’ve a few but a lot are corroded badly from poor coolant Maintenance and oil pump housings scoured badly. not teaching to suck eggs Neil but what were the oil pump gears like and the cover plate?

The ex Jimmy McRae ‘84 British Championship car was up for £250k but didn’t sell at auction. There’s currently an ex Reinhard Heinbach restored car currently for sale at €259k. You can get non restored, not ex works built ones for less, there is one for sale at €159k

Just dusting this thread off, Biffy's Manta is probably the most famous Manta on the internet, almost see it daily now. Well, here is a barn find thread, And a few pics.

https://www.ebay.co.uk/itm/235641366167?_skw=opel+manta&itmmeta=01JD58BZ9EDFZ6XC48TAJ6XG3R&hash=item36dd51e697:g:WtUAAOSw53ZmiSjc&itmprp=enc%3AAQAJAAAA0HoV3kP08IDx%2BKZ9MfhVJKlDZli7Fo3tL0wVTJ3EkrTgCiwnuevJrcz5sKsYv%2FHfBM00tbYNvYrvi%2FNz18ZpodD1mcpsqBi0OCal36nLNOF0lL520%2FLTSvM5Lfn9L1jyfDnxy%2BhlRxx%2FnnIuLVmQEr2mcTeE1w4c7gbSbeClPmMicTO8ECf7%2Bm0E7AcwP9%2Fw52q7%2Bwhu1mhzzOo6MFmglVI45C8x3Biv4YHlC6eEb6r3PL7%2BhlZuCH5HJTgLkDcMZoySbSbXqW%2Bs0jBa77qoGhQ%3D|tkp%3ABk9SR-r0r6jpZA

Thankyou Jessopia74, that is really useful. I know there is some work to do on the head, so will mention it to my guy and see what he reckons. I know he has been working on the CIH engine for a long time and did all the engine work on a few race/rally cars back in the 80's, so I trust his knowledge. I know he mentioned that there's a bity more tidying up to do, so we shall see.

this is true but in the case of the rally manta at £120 thou . that will be like old wine or a painting . people wont be buying to use or enjoy but purely as an investment . and a car is a large thing to store as purely an investment . you wouldnt actually buy a £120 k rally car to use as a car would you ? but as i said im just glad i bought mine when i did before prices went silly . same argument nowadays i suppose with houses !.

In general, car prices are all over the place, with projects, barn finds asking maybe a bit too much, compare the Manta equivalent, Capri, Escort MK2, Toyota Twincam, E30 BMW, Porsche 944, anything from £5k up to £40k. Problem is they are not making old ones anymore 🤣

Has the viva or Carlton got a MOT 🤔 £25 🤣 I'd pay that 🤣 Just find actions strange, like a Manta project through auction a few years back at £17, 18k. Or more recently a Escort Cosworth. Crazy money. £200k Weigh that up, I'd pay £20k for a manta As for an ex works 400, believe same car below. What are works 400s about £120k Rally cars have a hard life.

unrestored all day long for me ! the problem with a " restored" car unless you know the before , progress and methods etc through actual or photographic evidence is that you dont know exactly what is underneath your beautifull shiny paintwork .same as people who send their car off for welding and it comes back all undersealed up ! ( although at least you could remove the underseal to check if you realy wanted but you cant realy do that to a painted body ! many "restored" cars will be done 100% properly but many will be quick tidy ups to make a quick profit with filler over holes and badly welded or fabricated areas . at least if you bought an unrestored original car you would be starting with a known base to work from . even if you cant do the work yourself you could visit and check the progress and advise / ask questions . problem now thou is everything is stupid expensive and cars which we would have bought years back as mot failures for £25 are now asking for thousands . im glad i bought all mine back in thd 80's and 90's when they were a few hundred cos theres no way in a million years i would pay the thousands people ask nowadays . yes its supply and demand and what people are willing to pay but mantas over £5000 etc is just stupid ( dont have a go here ! lol) makes me wonder if i should tone down my collection and sell my 74 low mileage viva or my carlton 2.2 !

Not much selling at the moment, unfortunately. But prices for projects are still up there. Ok if you are fit for some very hard work. Saves you a few pound if you can do alot of work yourself, but it's a hard ball. Then there are alot who can't and prefer to buy built. Have to say, very nice interesting car, and would be worth a viewing if interested.

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agree with this, it looked to me like not really wanting to sell it as such.

Looking good, as the ports have been fettled a little, I would be nice to have the insert edges blended more into the throat of the inlet port. As that is where the initial flow at low lift gains will be, really helps with cylinder fill. Does not take much to just blend this, just a gentle carbide burr on the lowest 2mm, think of it like a thinner valve seat but on the other edge as such. Can even be done with a round stone, just takes a while longer. Other tiny bit and arguably more important is clean up the really rough points in the orange highlights, just take the really rough castings off as these are now potential detonation points. the 3mm shank smaller dremmel cone stone is ideal for these and will take very little time.

The black one in doncaster has been for sale for many months now. Its a very poor description for a car at that sort of price and i think it would need a good look around at exactly what has been done to it