Project Deathtrap: Jack's 1.2 Corsa - Page 7

Gaz86 · 19-05-2008, 14:42

ROTFPMSL @ vauxhall prices, hope you laughed when they quoted that, i know i laughed when they quoted £21 for a downpipe sealing ring, which is £2 in the factors.

www.autovaux.com gets my vote, they are usually genuine and under half dealer price.

**CraigGreen** · 19-05-2008, 14:48

Great mincing Jake!

I'd imagine all that coking is normal on these engines as they are plagued with crappy valve guide issues & EGR blocking problems from new. Junk the std ECU & fit some budget Megasquirt with either bike TB's or a Mantzel inlet IMO.

Jack · 19-05-2008, 15:12

Does anyone know definitively if the guides are replaceable?

Fow16v · 19-05-2008, 19:08

the guides are replaceable yea but i found it hard to get hold of them when i needed some, could only find brass ones, in the end i took it to an engine builders as they need to be heated up and pressed out

Jack · 20-05-2008, 20:48

I'll let the photos speak for themselves.

Caps are numbered! Ultimate sex!

As bent as Stu_CDX.

The test to see if valves are bent. Roll them down the side of a bench!

Clever dad!

While we were mincing about, we had a visit from Uncle Andy, who told us his lad has finished making his 4x4, apparently called "Mitsimog". I've just Googled for it and it's bloody everywhere!

http://www.pirate4x4.com/forum/showthread.php?t=661186

Some photos of it!

**Lugy** · 20-05-2008, 20:59

Thats some serious axle articulation

**RobJenko** · 20-05-2008, 21:12

Quote:

Originally Posted by Jack

I'll let the photos speak for themselves.

did you really need to roll them to see if they were bent?

Jack · 20-05-2008, 21:12

No, but we did the straighter ones just out of curiosity.

**RobJenko** · 20-05-2008, 21:14

so were any straight or did ben bend them all?

Jack · 20-05-2008, 21:16

Nah, they're all ****ed.

We were going to have the exhaust valves out too but we ran out of daylight. I need a proper spring compressor anyway, ours wasn't long enough. Had to improvise with a socket and a magnetised screwdriver to fish the collets out with.

Gaz86 · 20-05-2008, 21:16

looks like you may have gotten away with the guides by the looks of it, get the magnifying goggles out!

**Benn** · 20-05-2008, 21:27

That jeep things abit hardcore!

What the funk did ben do to that?!

chrisscirocco · 20-05-2008, 21:45

I saw the belt damage but didnt realise it had fasiled!
Is it a good idea to use some grinding compound on the new valves and spin them in the guides, to help seat them better in the holes/guides,
ive seen this done on a little 2 stroke engine, not sure if its a good idea though

Jack · 20-05-2008, 21:47

Quote:

Originally Posted by chrisscirocco

I saw the belt damage but didnt realise it had fasiled!

It's just slipped a few teeth I think.

Rubix_Cube · 20-05-2008, 21:53

Quote:

bent as STU_CDX

Are you not better off just going for a complete low mileage head to save you from buying new Guides / Valves & keeping the cost down ??

Jack · 20-05-2008, 21:55

Yeah, but then there's the feeling that a second hand head is an unknown, whereas a head we've built up, I'll know it's good.

I was tempted with another head, but now we've started taking this one apart, I am really enjoying it and looking forward to getting it all back together. Guides look alright!

Rubix_Cube · 20-05-2008, 22:02

Fair enough mate

However those valves have take a bit of a hit so I would really think about changing the guides just to be on the safe side - then you know it'll be 100% ok

wascool2 · 20-05-2008, 22:29

Quote:

Originally Posted by chrisscirocco

I saw the belt damage but didnt realise it had fasiled!
Is it a good idea to use some grinding compound on the new valves and spin them in the guides, to help seat them better in the holes/guides,
ive seen this done on a little 2 stroke engine, not sure if its a good idea though

yeh its good to grind the valves on any 4-stroke engine rebuild, course 1st then work your way down to fine, are you sure it was a 2-stroke u seen some1 grinding the valves on, sorry to seem a bit off but as far as i know 2-stokes dont have valves.

btw jack nice project, when are you going to check the exhaust valves?, is there any visable damage to them while in the head?

chrisscirocco · 20-05-2008, 22:40

Quote:

Originally Posted by wascool2

are you sure it was a 2-stroke u seen some1 grinding the valves on, sorry to seem a bit off but as far as i know 2-stokes dont have valves.

Yeah your right
It was a lawnmower so i just assumed,, must`ve been a 4 stroke, i shouldve concentrated more when the chap was teaching me lol,,
ive never pulled apart a 2 stroke actually

(hmm maybe an old bike project

Jack · 21-05-2008, 07:50

Quote:

Originally Posted by wascool2

btw jack nice project, when are you going to check the exhaust valves?, is there any visable damage to them while in the head?

We ran out of daylight last night, it'll probably be the weekend now.

**CraigGreen** · 22-05-2008, 09:38

Atleast its hands on stuff anyway. Makes a good read.

chris_16v · 22-05-2008, 09:53

done a good job on the valves lol

Jack · 22-05-2008, 10:26

Quote:

Originally Posted by CraigGreen

Atleast its hands on stuff anyway. Makes a good read.

Valves and a complete top-end gasket set on the way!

Jack · 22-05-2008, 16:37

Anyone ever been stupid/brave enough to use pattern valves?

Jack is.

LongLiveTheNova · 22-05-2008, 16:47

"Just slipped a few teeth"

Thats a fooking understatement and a half, every valves f**ked?

Edit-All that damage from a cam sensor bolt falling into the belt

"Runs out to check tightness of the ones on mine"