do you need a head gasket??
#1
SLOW LEARNER
Thread Starter
iTrader: (1)
Join Date: May 2006
Posts: 1,668
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
if you were to build the ultimate engine based for instance on a YB, with the advances in CNC machines etc, is there any reason why a engine cannot be built with the 'block' and 'head' all made out of a single piece of metal, this would then get rid of the head gasket completely?? there is probably a very simple answer that im missing something but just thought id throw it out there
#4
![Default](https://passionford.com/forum/images/icons/icon1.gif)
i see ya point fella as it would all be made out of the same metal with regards to heat expension etc but i feel it would be not possiable due to the different tempertures in different areas you simple need give somewhere to allow heat expension,retraction that place is the headgasket or it would crack somewhere!at least this is how i understand it?
#7
Advanced PassionFord User
iTrader: (6)
Join Date: Dec 2006
Location: glasgow
Posts: 1,755
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
probably could be done
but as with everything thats mass produced
its built to a budget and wouldn't be cost effective
makes more sense to have a head gasket so the engine can be opened up
but as with everything thats mass produced
its built to a budget and wouldn't be cost effective
makes more sense to have a head gasket so the engine can be opened up
Trending Topics
#9
BANNED
BANNED
Join Date: Aug 2004
Location: The beach
Posts: 5,249
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Slighty off topic (ish), but I was at pod a few weeks back and there was a couple of retired tool makers with a home made compund turbocharged bike that had no headgasket or valve seats, had a very interesting conversation with him about how he did it, what materials etc.
Didnt realise such a thing as the monoblock existed
Didnt realise such a thing as the monoblock existed
![](https://passionford.com/forum/images/smilies/shocked.gif)
#10
PassionFord Post Whore!!
#11
PassionFord Post Whore!!
![](https://passionford.com/forum/images/pf_gold_member.png)
Join Date: Apr 2004
Location: Warsaw, Poland
Posts: 5,343
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
There are quite many monoblocks out there, not on road car of course, but I suppose some road going bikes may have them. You can run normal engine without headgasket too.
#12
SLOW LEARNER
Thread Starter
iTrader: (1)
Join Date: May 2006
Posts: 1,668
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
well there you go, im not as stupid as i thought, i thought it would be bloody expensive and a 'cock to work on' but i suppose if its and f1 engine then reliable power is all they are really after??
#13
PassionFord Post Whore!!
![Default](https://passionford.com/forum/images/icons/icon1.gif)
i used to have a few photo's of it but cant find them![Wall](https://passionford.com/forum/images/smilies/wall.gif)
But thinking about it, in reality if the engine is going to be re-built after every outing ie f1 and the like. Then surely it would be a lot stronger?
And possibly be used more to be abused as you are taking a weak spot in the engine like the head gasket and removing the weakness?
Not sure though, food for thought.
![Wall](https://passionford.com/forum/images/smilies/wall.gif)
But thinking about it, in reality if the engine is going to be re-built after every outing ie f1 and the like. Then surely it would be a lot stronger?
And possibly be used more to be abused as you are taking a weak spot in the engine like the head gasket and removing the weakness?
Not sure though, food for thought.
#15
*** Sierra RS Custard ***
iTrader: (3)
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Early porche 911 turbos run no head gasket.
Monoblock's were popular in F1 for a while, you have to assemble them from underneath, valves in first then follow them up with the pistons.
Your concept of "based on a YB" isnt a good one though, in what way would it be based on a YB? Do you mean you would copy the antique and crude 16v cylinder head? If so, bad idea IMHO
Monoblock's were popular in F1 for a while, you have to assemble them from underneath, valves in first then follow them up with the pistons.
Your concept of "based on a YB" isnt a good one though, in what way would it be based on a YB? Do you mean you would copy the antique and crude 16v cylinder head? If so, bad idea IMHO
#16
SLOW LEARNER
Thread Starter
iTrader: (1)
Join Date: May 2006
Posts: 1,668
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
i wasnt gonna build one (havent got the time at the minute) i was just using it as an example as this is(was) a ford based website, could you make an engine that would be identical to the YB (or any other engine you choose) but of a single block and therefore getting rid of any head gasket issues, (as YB's are notorious for head gasket problems lol)
#17
*** Sierra RS Custard ***
iTrader: (3)
![Default](https://passionford.com/forum/images/icons/icon1.gif)
No, you couldnt, the design of the block would need to be significantly different at the bottom to allow the pistons to be fed up, and also a direct copy in aluminium would be too weak.
Some of the machining would be impossible too to replicate the water ways and oilways etc in a monoblock, it would have to be a new design.
Some of the machining would be impossible too to replicate the water ways and oilways etc in a monoblock, it would have to be a new design.
#18
Football Cwazy
Join Date: Oct 2004
Location: Redditch, Worcestershire
Posts: 9,553
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
I've seen touring car engines ( YB ) that run no head gasket, not sure how this set up would last long term at high power...but it lasted a full race at 500bhp no problem
![Big Grin](https://passionford.com/forum/images/smilies/icon_mrgreen.gif)
#20
SLOW LEARNER
Thread Starter
iTrader: (1)
Join Date: May 2006
Posts: 1,668
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
but is that a head still a head and block design?? surely with a mono block you can lose the weakness in the block made by the the need for head bolts etc as no drilling of the block will be needed, dont get me wrong im not gonna build one (havent got the time at the minute) but was just interested if there was a significant advantage you could gain from making it a single piece
#21
PassionFord Post Whore!!
![](https://passionford.com/forum/images/pf_gold_member.png)
Join Date: Apr 2004
Location: Warsaw, Poland
Posts: 5,343
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
Probably there is, but it is complicated as hell, and it's not like headgasket is THE PROBLEM in other engines then YB
In fact I have never seen headgasket failure in 2.0 litre Subaru (be it big power or not) that wasn't overheated due to cooling falure. It probably happens but it's not THE weakness. Same about big powered Mitsubishies. With ARP's the headgaskets hold and hold.... Purpose designed race engines may be other story but then hit's not my worry luckily
![Wink](https://passionford.com/forum/images/smilies/icon_wink.gif)
![Wink](https://passionford.com/forum/images/smilies/icon_wink.gif)
#22
*** Sierra RS Custard ***
iTrader: (3)
![Default](https://passionford.com/forum/images/icons/icon1.gif)
There are advantages if you are going REALLY crazy with tuning on super hot fuels, not on normal fuels though where a headgasket arrangement is fine typically if well implemented.
On normal fuel, you just dont get the cylinder pressures to need to run no head gasket in the first place.
On normal fuel, you just dont get the cylinder pressures to need to run no head gasket in the first place.
#27
PassionFord Post Whore!!
![](https://passionford.com/forum/images/pf_gold_member.png)
Join Date: Apr 2004
Location: Warsaw, Poland
Posts: 5,343
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
I was more thinking about the stuff rallycross boys sometimes use, I think it's 110 or 112, it's used by drag-racers often too. I think they may have stopped using it 1-2 years ago because it was leaded fuel i think..
#28
I've found that life I needed.. It's HERE!!
Join Date: Nov 2006
Location: Rotherham
Posts: 1,398
Likes: 0
Received 0 Likes
on
0 Posts
#30
SLOW LEARNER
Thread Starter
iTrader: (1)
Join Date: May 2006
Posts: 1,668
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://passionford.com/forum/images/icons/icon1.gif)
if i had the time i wouldnt let the lack of money knowledge equipment and design abilities to hold me back from having a go lol, just thought of it the other day and wondered if it had been done and was it worth it?? if you keep the coventional design of a head and block then lose the head gasket do you just machine the faces flat or are there other things involved??
#31
*** Sierra RS Custard ***
iTrader: (3)
![Default](https://passionford.com/forum/images/icons/icon1.gif)
if i had the time i wouldnt let the lack of money knowledge equipment and design abilities to hold me back from having a go lol, just thought of it the other day and wondered if it had been done and was it worth it?? if you keep the coventional design of a head and block then lose the head gasket do you just machine the faces flat or are there other things involved??
If its for road use, you cant have water in the mating face between the head and block if you go this way really, would be majorly asking for trouble.
Its also a bad idea on different metals like a YB iron block and ally head.
Thread
Thread Starter
Forum
Replies
Last Post
nicodinho
Ford Non RS / XR / ST parts for sale.
6
07-10-2015 12:56 PM
Mc5506
Ford Escort RS Turbo
6
05-10-2015 09:57 PM