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 Post subject: My engine dilemma
PostPosted: Thu Dec 27, 2012 7:38 pm 
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Joined: Wed Dec 05, 2012 7:14 pm
Posts: 18
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Location: Växjö, Sweden
Hello everybody,
First I hope every one of you had a very good Christmas with a lot of presents, good food and drinks :)
Sorry, this post is a bit long, but please, stay with me till the end, I just need to be very specific about my problem.
I haven't been active for a while, because I put my build on hold for the winter, as I did last year, temperatures in the workshop being now just inhuman up here. However, I will soon make my first engine fitting trials in the chassis, but I have different options when it comes to the engine/gearbox set-up:

- I have a 2,0i DOHC + MT75 from my donor. I can't fit a MT75 gearbox in my chassis, so I can not use this engine with its gearbox. I'm not particularly excited in using this big and heavy engine in the Roadster... but: this engine looks in a much better shape than the SOHC I've got on the side (see below). It will be “plug and play” if I use it in the Roadster, as I removed the electric loom, ECU and ancillaries from the donor that I plan to reuse, and to me it looks like much less trouble to make it work in the roadster than the other engine I have.
- I have a 2,0i SOHC (Pinto EFI) + Type 9 gearbox. If I use this engine, I will need to buy or make an engine loom and buy ECU, as well as some ancillaries. This engine has been bought for a very cheap price, and has been sleeping outside on a pallet covered by a plywood board for the last 2 years. I don't know how much work it will need before I can make it run. I don't have any invoice/sales certificate for it, and SFRO (Swedish IVA) will ask for one as it is not the engine from the donor, and it will not be easy to get in touch with the guy who sold it to me... but: this will fit straightly in my chassis which has been built for Pinto + Type 9 gear box.

So my two options are:
- Getting all the needed papers for the SOHC, make it work, get the correct engine loom, ECU, ancillaries.
- As I can not use the MT75 in my chassis, I could use the DOHC with the Type 9 Gear box from the SOHC. But I know they don't match together: I've read that the DOHC flywheel is too thick (8-10mm) to fit directly on the type 9, and needs to be machined, ans spigot ring needs to be changed. As I don't mind scarifying the SOHC, do you think I can simply remove the flywheel, spigot ring, starter motor, etc. from the SOHC and fit them on the DOHC? Will they fit ? Then I will not need to machine the flywheel of the DOHC, and would be able to fit my Type 9 on it, as I've read the bolt patterns of the back flange are the same on both blocks.
What do you guys think is my best option, considering my priorities:
1 - as less work as possible
2 - as cheap as possible
3 - Roadster performances (weight, hp,...)

Thank you in advance for all your answers and comments.

_________________
Sylvain
Brake and fuel lines : https://sites.google.com/site/hydraulicforkitcars/
Build blog : http://vouchtroadster.blogspot.se/


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 Post subject:
PostPosted: Fri Dec 28, 2012 9:52 am 
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Joined: Mon Dec 03, 2012 6:19 pm
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Chew a bit off the flywheel and go with the dohc. The other thing I read was that 1.8 diesel sierra bellhousing is about 20mm longer than the petrol normal version so if one of those is available go with that, save on the machining of the flywheel .You might have to do a little research on clutch arms/thrustbearings/starters but its worth it. Nothing wrong with a type 9 IMHO.

Bob


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 Post subject:
PostPosted: Fri Dec 28, 2012 6:27 pm 
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Joined: Wed Dec 05, 2012 7:14 pm
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Location: Växjö, Sweden
Thank you for the answer Bob, very helpful.
Today I wanted to check if I can fit the flywheel of the SOHC on the DOHC. I removed the gearboxes and clutches from both engines. But when I looked at the flywheels, it appears that the 6 bolt PDC is not the same on the SOHC (about 65mm) and the DOHC (about 70mm). Not only that removing the flywheels look to be a big pain because of the tightening torque of these 6 bolts, but obviously, I will not be able to fit the flywheel of the SOHC on the DOHC.
The good news is that both clutches are the same, and as I bought a brand new one for the SOHC+type9, I know it will fit the DOHC's flywheel too.
My options now are as Bob said:
- having the DOHC's flywheel machined and balance by a local machine shop,
- use a longer clutch bell housing (from 1,8D which (I've read that too Bob) can fit the thick flywheel of the DOHC).
I'll have a look for this longer bell housing, and if I can get one for a good price, I'll go on this route, as this way, I will not need to remove the flywheel from the DOHC.
Keep you posted.
Thanks again for the help.

_________________
Sylvain
Brake and fuel lines : https://sites.google.com/site/hydraulicforkitcars/
Build blog : http://vouchtroadster.blogspot.se/


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