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Granada MK II - 4.1litre 24v BOB

Started by Tobbelainnen, July 04, 2007, 22:56:27

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Pin_cushion

Hmmm...

It's got a towbar...  

What you planning on towing...?
The world when it stops...?  

Pin_cushion...

Kezza

Nice  
And you kept the 2l badges

Count

what did you do about the big end bearings mate?
I take it you used SB rods as well..

Tobbelainnen

I used modifed SB rods with stock ford v6 shells. The big end of the sb rod is a bit wider and also the diameter is a bit smaller than fords, so it is easy to modify them for using ford shells... New locking groves for the shells are also needed.. And you might want to advice the guy that is doing the machining for you that the centerline on the sb rod is different from the ford one, just so he won't mess them up.....

//Tobbe
Quality Specialist - Technical Analysis and Product Improvements

Count

I'm doing the mod myself actually..
Is the centerline different..?!  
By how much?
I've come to the conclution that they are roughly 2mm wider. That's right isn't it?

I see that you also have 6000 rods. How high is the comp. distance on your pistons and what CR do you get then?
The ones I have ordered are 1.225

Going for a 4.040 overbore by the way..  Here goes...

I'm trying a different way of sealing the holes I the valley between the banks by the way.
A high temp aluminium/epoxy putty, http://www.alvinproducts.com/Products/Products.asp?ID=2]http://www.alvinproducts.com/Products/Products.asp?ID=2

I think this will really do the trick!

Tobbelainnen

Count, I don't remember all the dimensions, but if you look at both sides of the sb rods big end and you will notice that the sides aren't the same due to 2 rods are sharing the same crankpin. No problem to machine it correctly, if you just are aware of it.

I think the pistons I used had a 28cc bowl, the compheight was 225-6x25.4-84/2 [mm]. The cr was about 10:1 wtih the headgaskets that were used, compression test showed 14bars at stock timing.



Have also done it differently on another block to seal off the holse in the valley.....

Windscreen sealant, armed with steel rods. Then alu pluggs for the lifterholes, then topped it all with epoxy and some steel rods for arment, but better to use glassfibre, the epoxy tended to crack on a few places... But I guess it will do.... And on the last picture, there is a rhs gasket on the lhs side, thats why the top waterways doesn't add up.... That BOB gasket have been modifed for a loose fire ring with outer dimension of 106mm, it was just done as a test to see if the tool for making gaskets out of alu sheet also would work on a stock gasket  

[attachment=2747:2.JPG] [attachment=2748:3.JPG] [attachment=2746:1.JPG]
Quality Specialist - Technical Analysis and Product Improvements

Count

Hehe... Nice touch with the epoxy decals there..

Was going to machine the whole face flat personally..

Here in norway we have something called "St€™€Ã,¥l plast", it is something similar to the Alvin product, but sold in MUCH smaller quantities. And it's 2-komponent. Do you have that in sweden as well?

I'm going for high compression on mine, so probably going to keep the flattops, and machine valvepockets in stead.
A quick calc. concludes that you have a comp.distance of 1.20"...?
Hmm.. and you didn't get higher comp than that..?

Dave

Nice  

So is this the new engine I am collecting bits for then?

You getting a production line going or something  
Dave

Matt

#98
nice 4.1 cosworth lettering on the top there Tobbe, that done in fiber glass?

for my engine i might give this stuff a try, http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=0174640#header]http://uk.rs-online.com/web/search/searchB...=0174640#header

used it at work for various jobs, sets underwater, can be drilled and tapped. good stuff, should be just the job  

btw dropped that sump off at Daves the other day, so thats another bit  
24v Manual Scorpio **FDS2000 Scans - Birmingham**

Tobbelainnen

Matt, thanks mate. The letter stuff is actually an aluminum plate, milled in a lathe  

Dave, there is no production line, just some experimental stuff, again, I think it will work better this time  

Count, I've double checked the CR, and I get it to 10.127:1....



Quality Specialist - Technical Analysis and Product Improvements

Count

Quote from: TobbelainnenMatt, thanks mate. The letter stuff is actually an aluminum plate, milled in a lathe  

Dave, there is no production line, just some experimental stuff, again, I think it will work better this time  

Count, I've double checked the CR, and I get it to 10.127:1....

Ok, thanks Tobbe. And that was with a 1.5mm headgasket?

Tobbelainnen

The engine came loose last night....... Feck, a brand new engine mount failed, that rubber thingy didn't last more then 60km, bad luck it is, but worse is that my new exhaust started to leak due to it, and that really upsets me since I've put lots of time and money into building it.. No more cheap engine mounts of ebay for me....
Quality Specialist - Technical Analysis and Product Improvements

Jean-Francois

Hi Tobbe,

Can't sleep so spent my evening reading this topic again. Too bad you had so much troubles with yours.
I am now closer to the assembly of my engine, so it is good to read this so as to know what can become bad.

Your last post on this topic was 6 months ago, did you have some more experience in the meantime?

Thanks,
Jean-Francois
---------------
Oldsmobile Toronado 1969 455 (LPG - MS2extra)
Ford Capri S 1977 2.3 (carb)
Chevrolet Caprice station Wagon 1986 454 (MS2extra)
Subaru Forester 2.0 S Turbo 1999
Subaru Legacy GT-B 2.0 (Jap specs) 1999
Dodge Daytona Turbo 1992 2.5 16V hybrid (MS2extra)

mk2 cossie

read through this post the other night too, cant believe i missed it  

some good work there, and in a mk2 granny aswell, love it  

not had good experince with ebay engine mounts either im afraid, although i think land rover ones are the same shape but harder if thats any help

Tobbelainnen

#104
Not much have been happening here... The 4.0 engine still runs, havn't done any to it, still the high end power is missing.. I had to get it out of the car last weekend due to the car failed the MOT.... They said that the car should only have 77kw and that engine had at least the double...

Anyhow, the 4.0 was just an emergency built due to the 4.1 breaking down. The broken pin, damaged piston and the damaged bush have ben fixed, so pretty soon the engine is ready for being assembled.... But there have been a few updates done to it...

New piston pins
New sump
New slide TB inlet
New inlet camshafts
Girdle

[attachment=1]  [attachment=2] [attachment=3]
Quality Specialist - Technical Analysis and Product Improvements

Matt

Quote from: TobbelainnenNot much have been happening here... The 4.0 engine still runs, havn't done any to it, still the high end power is missing.. I had to get it out of the car last weekend due to the car failed the MOT.... They said that the car should only have 77kw and that engine had at least the double...

Anyhow, the 4.0 was just an emergency built due to the 4.1 breaking down. The broken pin, damaged piston and the damaged bush have ben fixed, so pretty soon the engine is ready for being assembled.... But there have been a few updates done to it...

New piston pins
New sump
New slide TB inlet
New inlet camshafts
Girdle

[attachment=3061:camshaft.jpg]  [attachment=3062:girdle.JPG]


heya Tobbe

has your brother machined the inlet cams? glad to hear the 4.1 is on the mend, i like your girdle, looks a nice simple design, may have to copy that
24v Manual Scorpio **FDS2000 Scans - Birmingham**

Uncle Henry

Hi Tobbe,
First of all let me say that I am glad that someone has already done what I am still dreaming of - the 4.0l conversion with 24V heads. When I read this
Quote from: TobbelainnenNot much have been happening here... The 4.0 engine still runs, havn't done any to it, still the high end power is missing..
and saw that you are running the stock plenum assembly I wonder whether you have noticed the additional flaps/throttles that are switched to open position originally by the stock ECU (or was it the EDIS module?  ) exactly around the 4000/min range you mentioned. This is done in order to get variable intake ways for low RPM torque and high end power. Keeping in mind that you are additonally running an MS ECU I asked myself if this is also switching these flaps at the same RPM. Possibly your lack of high end power is a result of these flaps kept closed.

Having already thought about a similar conversion on my 24V Scorpio I would simply disassemble these flaps in the hope that a displacement of 4.0l pumps out enough low RPM torque.

Please keep this project alive!

Dave

#107
Great stuff Tobbe  

I am very interested in seeing how them new cams work out.


Matt that girdle would actually cost a bit to copy.

Dave

M-man

The camshafts will work just fine...    Mabe we will se a set of billets for the exthaus later on.  

There s o lot of weird stuff going into that engine...

Jean-Francois

Happy to hear that your are still working on that engine  
Jean-Francois
---------------
Oldsmobile Toronado 1969 455 (LPG - MS2extra)
Ford Capri S 1977 2.3 (carb)
Chevrolet Caprice station Wagon 1986 454 (MS2extra)
Subaru Forester 2.0 S Turbo 1999
Subaru Legacy GT-B 2.0 (Jap specs) 1999
Dodge Daytona Turbo 1992 2.5 16V hybrid (MS2extra)

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