andybuff
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| posted on 5/3/02 at 08:35 AM |
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d.o.h.c. engines
does anybody think that the dohc engine is a good option as its more modern than the pinto and has anybody fitted this lump?
will it fit under the bonnet line with the injection? i have driven the sierra with it and it seems quite sweet.
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Dunc
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| posted on 5/3/02 at 10:16 AM |
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Andy,
I've using a 2.0 DOHC for my car, I'll be stripping it at the weekend and building it into my chassis. I measured it up to see how well it would fit
but the inlet manifold sticks up quite a bit at the rear. I took some rough measurements at the weekend for height, width etc it situ but it was quite
awkward. I'm going to fully measure it at the weekend once it's out of the car and do a proper drawing of it, sump, block head etc for more
accuracy, I email it to you once I've finished it.
Dunc.
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James
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| posted on 5/3/02 at 10:35 AM |
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What actually is the DOHC like? I'd heard some rude comments about it so I'd decided to go with a Pinto.
Thing is, I'll probably be getting a DOHC car anyway just for the diff and discs etc. and was thinking I'd need a second donor to get the Pinto. If
the DOHC is any good it'd save me getting a second donor!
James
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Dunc
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| posted on 5/3/02 at 10:45 AM |
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The DOHC is quite neat looking, I'll take some photos of mine as soon as I figure out how to post pics on here. It's still only a 8v engine though.
Mine didn't come with rear discs though or alloys, thought it would've, you live and learn.
Dunc.
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technics
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| posted on 18/5/09 at 05:37 PM |
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d.o.h.c
the dohc engine is alot of weight for its power output, i have worked on a 6 of these engines most requiring head gasket due to failure. The engine
has very large valves, porting of head can be taken quite far , they are not easy to work on for novice mechanics the chain tensioner often needs
replacing which can be a bastard at times. these engines are good for torque but not the best for quick response hope this helps a little....steve
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Vindi_andy
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| posted on 19/5/09 at 08:50 AM |
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I have a Ford DOHC also known as a Twinky.
Not done anything to it just plonked it straight in. yes it is quite tall at the back and only just fits under my MK4 vindicator bonnet.
Head gaskets are a known issue but usually fail due to overheating. One recommendation coming from Ford sierra owners forum is to replace the Twink
fan switch with a Mondeo turbo diesel fan switch as this has the same connection but comes on at a lower temp.
I am running mine with a coolman rad and mondeo fanswitch and had no problems even in rush hour traffic.
If i decide to keep this engine( see my engine transplant thread) the sump will need shortening and i think the head gasket will need doing as it
appears to be leaking oil from there. Whilst Ive got the head off there are several things that can be done to increase the output ( I have a DOHC
tuning guide done by a guy from FSOC forum who has also built a 2.3 l Twink u2u me your email addy if you want me to send it or search on google for
"crustworld"
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cd.thomson
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| posted on 19/5/09 at 10:04 AM |
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OT: but Dunc - you just wasted literally minutes of my life watching a star wars gif.. 
Craig
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britishtrident
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| posted on 19/5/09 at 10:19 AM |
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The timing chain issues appears to occur at around he 80,000 mile mark.
Gudgeon pin failure is a known issue --- time spent at high rpm related.
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Vindi_andy
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| posted on 19/5/09 at 11:40 AM |
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guess id better think about doing my timing chain as my engie is over the 100,000
According to the Guys on FSOC its not actually the chains that fail its the crappy chain guides that disintegrate then jam the chains causing their
failure
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PaulBuz
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| posted on 19/5/09 at 08:09 PM |
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They are good engine if they are looked after.If not you will have problems.
I've said this so many times it hurts, but here goes:
The DOHC engine with the mt75 g/box is LIGHTER than a pinto with a type 9.
With torque that a pinto can only dream of!!!
ATB
Paul
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James
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| posted on 19/5/09 at 08:54 PM |
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Way to bring a 2002 post back from the dead!!! 
------------------------------------------------------------------------------------------------------------
"The fight is won or lost far away from witnesses, behind the lines, in the gym and out there on the road, long before I dance under those lights."
- Muhammad Ali
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jpindy3
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| posted on 19/5/09 at 09:09 PM |
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the only thing that would bother me is the waght,and the fact you got to get two cams if you want to tune it,with im sure you will,there isnt a grate
diffrace in power a bit more out of the dohc 
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PaulBuz
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| posted on 20/5/09 at 01:53 PM |
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quote:
Originally posted by James
Way to bring a 2002 post back from the dead!!!
Only just noticed that!
ATB
Paul
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cd.thomson
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| posted on 20/5/09 at 01:57 PM |
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quote:
Originally posted by James
Way to bring a 2002 post back from the dead!!!
Craig
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