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
Uncategorized

Wiring loom tidy up

While i was removing some old wires from previously unused things like the old air horn and alarm i decided it would be a good idea to have a little tidy of the wiring. So steering column out and instrument panel as well so i could get all the bits. What a mess!! so many unwanted wires from the old immobiliser! so a good strip out and label up of everything ready for the re-wrap. Then i started looking for some loom wrap and wanted the split stuff to make it easier if i did need to do any changes….

Continue reading
Uncategorized

More Gates clamps fitted

Managed to get a morning on the car and i have fitted a few more Gates clamps, they are just so easy to fit! I love them. So i now have all the water hoses fitted and i am now just need to do a quick check over the engine and make sure everything is all nice and tight and then its just one or two little bits and the last bit will be to connect up the main live ignition feed to the new injection loom and we are on for a go at starting her up. #NotLongNow I…

Continue reading
Gates power grip clamps - fitted to Opel Manta A Series
Uncategorized

Power grip clamps.

I had some custom silicon hoses made for me by JS performance, but the top hose was just a little big when fitted to the radiator outlet and would leak. And that was when it was cold so i was worried that it would be worse when under pressure. So the search for a solution began.. Could i get silicon tape and wrap the outlet to increase the size? An idea but not a great one, then one day i came across these “Gates Power Grip Clamps” all the blurb said that they would seal a hose connection better than…

Continue reading
Uncategorized

Progress update

A little progress update on the old opel! I now have a nice new fully mappable ECU that any dealer can map, so that should make life easier, and the loom has been adjusted to work with the new ECU, so i have lost a few bits from the old setup as the air temp sensor is not needed. The ECU is all plumbed in under the dash and i have a new trigger disc to go with it. The loom as all in and i just need to set the tappet clearance for the engine to be ready. So…

Continue reading
Uncategorized

Getting ready for the start up!

So its finally got to the point where i am getting ready for the big day!! The fuel system works, im just finishing the crank sensor install, which will mean i can then start to add oil to the engine and then water. I also need to finish the coil mounting bracket and and fit the ECU and then a good check over things to make sure they are all secured and tight and we will be ready for a test start! As Christmas is not far off now i think its going to be the new year before im…

Continue reading
Uncategorized

Fuel system testing

Finally got round to giving the fuel system a test! and apart from a small leak from one of the fuel filter banjos (i think its missing a sealing washer) it worked like a charm 😉 much quieter than the old low pressure pump and runs back on the return fine! i just need to sort the breather pipes back up to the filler neck now and fit that washer and we are done. #happydays

Continue reading
Uncategorized

Exhaust front section parts

Yesterday a nice little box of exhaust parts arrived for the front section of the exhaust. One of those being the flange to fit the manifold that i had to have cut as the US seem to use there own offset for the holes that i couldn’t find. The front pipe had been bent to clear everything nicely and i have added a small flexi section to help to add a little flex to the front pipe. I managed to get it all tacked in place today and all i need to do tomorrow is add oxygen sensor and its…

Continue reading

Popular posts

GM/Opel CIH Engine Timing Chain Guides & Potential Problems

Im writing this little post on some of this issues i have encountered when building my Opel Manta CIH engine due to the differences between the Original GM/OPEL timing...

Finishing the Exhaust

I have finally got back round to doing some more work on the car!! The summer has been a bit busy with work so not much time has been...