trphillips

Timing belt broke on my 93 Civic DX with a D15B7 engine. I have a spare complete D15B8 engine. Can these be swapped and if so what would be involved?

24TEN

iTrader: (2)

One for one swap, use the correct ECU, that should be about it. Before you go through with it, why not verify you have to at all? A buddy of mine had his belt break on his car and was lucky enough to not have bent any valves.

trphillips

Thanks for the info. Will check the head for bent valves but it some pretty bad noises when it happened. I don't have the ECU for the D15B8 just complete engine and trans. So it will not run with original ECU?

Former User

Resetting the mechanical timing and doing a cylinder compression test should provide the answer without tearing the engine down.

The engines require different ECUs and possibly different engine wire harnesses or wire modifications.

24TEN

iTrader: (2)

It'll run but the fuel maps are different (different injectors, B8 use 195cc vs all else 235cc). In addition the ignition timing is also different. I can't say it'll run the same/better/worse because I've never tried it so hopefully someone that has tried it will verify if it's safe to use your original ECU.

mrspeedy69

My belt broke on my b7 and it was just fine. You may be ok just check it out.