1974 A Series Opel Manta Blog

The Opel Project blog has been setup to record the rebuild of my 1974 A Series Opel Manta.
OPEL
1974 A Series Opel Manta Blog
Opel CIH oil pan dipstick alternative option using Ford 7.3 V8 pan adaptor
CIH Engine

Dipstick alternative option

Not wanting to have to drill the block to locate the dipstick hole where it should be for the manta in the block, i did a bit of searching and found the the US Ford 73L V8 Diesel has an oil pan dipstick!! So after a bit of measuring and checking i reckoned that this would be just what i needed. So i ordered one on ebay and when it arrived measured it and bought a metal hole punch to cut a nice clean hole and as i has a spare oil pan i thought i would give it a…

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CIH Engine

Engine Rebuild

So the crank is back after a regrind and is 0.25mm under size. The new bearings and piston have arrived and the bottom end is all back together. Now its time to fit the timing chain cover and other bits.  

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ring compressor sleeves from Wiseco
CIH Engine

Fitting Pistons

Last time i built the engine up i used one of those pesky band type piston ring clamps and it wasn’t the greatest thing for fitting them. So this time i did a bit of reading and came across these ring compressor sleeves from Wiseco. They start off wider and taper to the same size as the piston bore. So i bought one to try it out and they are Amazing. No hitting the piston top with a hammer end or something like this. These you can just push in with your fingers as unlike the band type that you…

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CIH Engine

Time to get the engine back together!

So the crank is back after being ground by .25mm. New bearings and piston have arrived + plus a few other bits 🙂 Now time to test out the new piston ring compressor sleeve! Im going to try the old damaged piston first to see how it works, it looked nice and easy on youTube!

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Brakes, Interior

FOOT DOWN, LETS GO!

Now the winter has finally passed and the nights are longer is full speed and back on the project again 🙂 While i wait for the crank to come back i have a few other things to keep me busy! Today i had a full day on the Opel and as the weather was nice and dry i managed to get quite a lot done. When i removed the engine and box to give that the check over i noticed that the torque tube doughnut looked like it had a crack, and on further investigation noticed it was totally shot! so…

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OPEL

Spring Time = Opel Time

So now the bad weather is out of the way and its getting warmer its time to get moving on the car again. I have a new plan of attack to try and get her finished this year! The crank is at the engine shop and needs a slight grind which i think was down to the problems starting her up and getting the oil pumping as a few of the bearing did have wear that looked like they had been short of oil. So hopefully in a couple of weeks, the crank will be back and i can get…

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OPEL

1974 A Series Opel MantaFeatured

My 1974 A Series Opel Manta. It’s been a long project and there are still a few little modifications I want to do in the future,. Now running a 2.0l+ CIH engine on full OMEX 600 engine management with Webcon throttle bodies. Everything is custom-made or adapted, from the full 2.5″ stainless steel exhaust, Wilwood racing callipers, Cosworth rear callipers, Hydraulic clutch, Chevy S10 clutch kit and lots more.. Read on for full details of the rebuild and hopefully one-day pictures of her out on the road in Germany!

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Clutch

Hydraulic clutch

So lots to do and this weekend its time to get started again. So along with a clean up of bits im looking to get the hydraulic clutch started. I have it setup as a little mock up and need to secure a few bits and get testing.

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CIH Engine

Engine out

Ok, it’s been a while since i posted and also since i did much to the old A series! Life kind of gets in the way far too often!! So as i decided to fit the S10 clutch and new flywheel i decided it was time to fix a couple of bits i was not happy about and as i like to do things big style! it was engine and box out. So i now have the box and engine completely out, the front suspension and part of the exhaust. So things to fix: Manifold – drill out holes as they…

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