1974 A Series Opel Manta Blog

The Opel Project blog has been setup to record the rebuild of my 1974 A Series Opel Manta.
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1974 A Series Opel Manta Blog
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Hydraulic clutch fitting on the Opel manta A series

I have always hated the clutch cable crossing over the engine on the a series and wanted to get rid of it and fit a hydraulic clutch, but have found it hard to find any info on someone fitting one. So i did a google and looked at other cars using the wilwood pull cylinder to get some ideas. I decided on an external slave cylinder as its such a pain to drop the 5 speed gearbox on the A if i did have issues. So a plan was hatched. i decided a bracked that bolted to the engine and…

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Wilwood brake adapters for Opel manta A series
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Wilwood brake adapters for Opel manta A series

Finally after months of waiting for CJS enginerring in ferndown (not speedy engineers) they have managed to finish the adapters to fit my wilwood calipers! So any hopes of getting the manta running for the summer are long gone! They do look spot on, so now its off to the cars temp home this weekend for a test fit. All i need then are the correct bolts and a couple of 90 degree goodridge fittings and then i should be able to test the brakes!!

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BMW Halo Angel Eyes now all working in the Manta A

Once i had figured out the A series wiriring it was a quoick and simple job to get the lights all working. They work just as the A series ones use to. I cant decide if i should hook up the Halo’s to run as soon as the ignition is turned on so they are like running lights? It should be as easy as swapping a feed out from the ignition to the light switch. But as i have a few other more important things to sort out first so i will leave them as they are and add this to…

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Engine now running.

Filled her up with new super unleaded fuel and now she starts fine. Just need a bit of tuning as we are running quite rich. But need to swap to the new ENEM cam when i have it so i can run at 2500 revs for about 20 mins the bed the cam in. Small steps…  

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BMW Projector Halo Lights by DEPO

I thought i would post this for anyone fitting the BMW E30 Halo projector lights from DEPO . When you get the kit you get a loom to hook up the new Halo part but not for the rest of the kit. So unless you are fitting it to a BMW you will need the plugs for the main and dipped lights. It took me a little while to track down part numbers.Lots of BMW dealers in the US seem to stock them, but i had no luck with any UK ones showing, so it was off to my local BMW…

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Custom brake adaptors

So the next little project is to get some brake adaptors made as i cant just buy them off the shelf 🙁 I have Wilwood dynalite 4 pods going on with 280mm vented Volovo front discs. So i have started making up the adaptors, first from an old chopping board! as its easy to cut, then the next step is to make one from ally sheet to test and then get some proper ones cut from that and after that would out the spacing to get the calipers sitting out far enough, then get those turned and welded on. So here…

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Opel Manta A Series fitted with BMW E30 Halo (angel eye) lights

Well finally after having the BMW E30 halo (angel eyes) and pondering over the best way to fit them, they are now installed into the A series!! As you can see from the previous post i have had some adaptors made to hold the lights. It was then just a process of working out how to remove the adjusters and install them into the new adaptors. I managed to use the original BMW adjusters and drill the adaptors and fit the plastic locators so i could then insert the adjusters. So they should work very similar to the original with two adjusters,…

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Fitting BMW angel eyes to a Manta – the adaptors

Finally got the adaptors made for the BMW angel eyes, so need to get on and fit them now! They are spun from a flat piece of ally and made into the shape. I just need to drill holes for the adjusting spindles and trim the outer to the same shape as the old backings. The inner ones might need to have some tabs welded to them as i found it hard to get the spun to the exact size. Picture below of the mockup of the manta backing plate and the BMW plastic mounting cut and bonded together and the…

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Popular posts

BMW Projector Halo Lights by DEPO

I thought i would post this for anyone fitting the BMW E30 Halo projector lights from DEPO . When you get the kit you get a loom to hook...

BMW Halo Angel Eyes now all working in the Manta A

Once i had figured out the A series wiriring it was a quoick and simple job to get the lights all working. They work just as the A series...