Building a hot vintage engine with Jonny69

Give the rusty new head a little skim to wap the compression ratio up another bit, im running 9.75:1 on optimax fine in my triumph modified engine.

Why hs2 su's? surely for the extra performance at least fit 1.5" hs4's?

just my views.

Also that head is just asking for a bit of DIY porting, or at least a damn good clean up and a new set of valve guides please tell me your gonna get the guides replaced whilst at the machine shop, they are dirt cheap and could save you a lot of problems in the long run.

Very very nice manifolds though, very tasty...
 
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Mattius said:
Give the rusty new head a little skim to wap the compression ratio up another bit, im running 9.75:1 on optimax fine in my triumph modified engine.

Why hs2 su's? surely for the extra performance at least fit 1.5" hs4's?
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Twin 1 1/2" SU's would be serious overkill for a 1172cc sidevalve engine. Twin 1 1/4" SUs are good for around 80bhp or so.

I think he should put individual throttle bodies and a megasquirt setup on it :D

just my views.

Also that head is just asking for a bit of DIY porting, or at least a damn good clean up and a new set of valve guides
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The ports and valve guides aren't in the head...
 
Dogbreath said:
Twin 1 1/2" SU's would be serious overkill for a 1172cc sidevalve engine. Twin 1 1/4" SUs are good for around 80bhp or so.

I think he should put individual throttle bodies and a megasquirt setup on it :D



The ports and valve guides aren't in the head...
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good point i should look at photos.

you can never have overkill for an old engine, wap it to the max.

megasquirt is good but you need to sort the rest of the engine first to get the most out of it.
 
Jonny69 said:
That's half a shopping trolley it's sat in, they make great engine trolleys. Please note: Sainsburys charge £1 for their trolleys but they are free at Waitrose. I stole mine from Sainsburys because I feel by not charging me Waitrose has trusted me not to steal their trolleys. I will honour that trust. Sainsburys on the other hand has made me feel like a petty theif so I honoured that too and nicked their trolley. And very nice it is too.
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Geat thread and i love the logic behind this particular part! :D .
 
Jonny69 said:
That's half a shopping trolley it's sat in, they make great engine trolleys. Please note: Sainsburys charge £1 for their trolleys but they are free at Waitrose. I stole mine from Sainsburys because I feel by not charging me Waitrose has trusted me not to steal their trolleys. I will honour that trust. Sainsburys on the other hand has made me feel like a petty theif so I honoured that too and nicked their trolley. And very nice it is too.
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LOL :D
 
Superb thread, makes a big change to be reading about an engine and car older than me!!! :cool:

Dogbreath said:
I can remember porting an old side valve Briggs and Stratton in my youth...fun days. You can actualy get tuning parts for them now. ISTR ditching the headgasket entirely and lapping the head to the block with valve grinding paste. Might be a bit trickier with the pop engine ;)

Interesting that inlet and exhaust valves are the same size on the Ford, wonder if that was purely to make the valves cheaper to produce?
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Ahhh memories of youthful shenanigans with a garage full of various B&S lawnmower engines, trying various bits together to see what would happen.
Had one sit on mower that ended up doing over 30mph, (my mates scooter would be left behind), was absolutely awesome, and kind of scary at the same time.

Makes me feel all young and lively again, :D , great work Jonny69, keep it up.
 
Looking good there Jonny. So this is what you been busy with lately. :D

Fun project for you, certainly will make the Pop easier to drive round but could be a bit lively in the wet!
 
Nice post. She'll be a right beast when you have finished! :D

Are you (or have you already and I've missed the post?) changing the brakes? I seem to remember an opening thread discussing how they were... barely adequate?
 
Gaijin said:
I admire your courage old bean, must be a nightmare to work on, good job it doesn't have all the technical mumbo jumbo of today!
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Actually it's not too bad to work on because there isn't much to it. The main problem is rusted head studs because I've had to beat the living daylights out of it to get the head off :D

Mattius said:
Also that head is just asking for a bit of DIY porting, or at least a damn good clean up and a new set of valve guides please tell me your gonna get the guides replaced whilst at the machine shop, they are dirt cheap and could save you a lot of problems in the long run.

Very very nice manifolds though, very tasty...
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The guides are fine as it goes. Because the valves are in the block the guides are very long and not prone to wear. The springs are a bit knackered though, I'll have to replace them with some good uprated jobbies to cope with the added combustion pressure ;)

As for the port porting I'm in two minds. The biggest valves I can get are only 1mm larger on the inlets so that's not worth it for the bother and expense IMO, so the bigger ports won't make much difference. The more important work is inside the chamber so the bore can suck in a better charge.
 
volospian said:
Are you (or have you already and I've missed the post?) changing the brakes? I seem to remember an opening thread discussing how they were... barely adequate?
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Not changing the brakes :p

Sounds like madness but we're not talking huge horsepower here. It'll be lively and need to be driven with a bit more respect from now on, but since all my braking system is new and I did the kingpins the brakes work a treat :)
 
Jonny69 said:
A trolley full of junk parts, check:

trolley.jpg
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Needs de-tangoing tbh.
 
The Giant Atomic Lizard bows in deepest respect to the looney known as Jonny69 :cool:

The future is in safe hands with people like this about :D
 
Dogbreath said:
I like to think of it more as an ironic modification than blasphemy :D And I've never seen a fuel injected sidevalve engine done. Probably for good reason...
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Because no-one would spend anymore than he has to on a sidevalve engine.....why not fit a zetec :D
 
[huzeeee] said:
Because no-one would spend anymore than he has to on a sidevalve engine.....why not fit a zetec :D
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Cause a zetec would be useless in one, doesn't keep the original cars character.
 
First mechanical disaster :(

I was trying to get the distributor out but it was stuck fast. The securing screw was a slotted screw and it was rusted in so because it's now a spare head I drilled the top off the screw. Still couldn't get the dizzy to move so did the routine of dousing it in WD40, wriggled it, nothing, more WD, tappity tap tap with a clubhammer, bit more tapping and it appeared to come free but was a bit wobbly and I still couldn't pull it out the head.

Last night I resorted to a hydraulic press. Juts as well I did because it was pump pump pump, any minute now, pump pump pump, oh come on pleeeeaaaase... pump pum*BANG!* and it shifted about 3mm. Then pump pump pump *BANG*, pump pump pump *BANG* and it finally dropped out.

As I suspected I broke the casing from tapping it a bit too keenly:

10-07-07_2009.jpg


So I won't bugger about with the other one, I'll just put it straight on the press :D

Shame because this is a good dizzy and the other one will need the guts transferring from this one.
 
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