Thunder Saloon 24V

Taps · August 26, 2008, 08:52:35

Quote from: sierra3dr
You might have to put me right here Rob. As we know that cats hinder performance,therefore it would be better to leave them off. Now,with the manufacturer date of the XR4i being 83 or 84,it would not need a cat test,as it will have 'PR' on the VIN plate for the MOT inspectorate. Whether the V5 will have changed details,it still wouldn't effect the eissions test. I'm none the wiser.

The cats have been taken out and the cans turned into silencers m8, as you can see theres only 1 original silencer in the system

Emissions arnt a problem on the 4i so makes no difference

sierra3dr · August 27, 2008, 05:56:31

Quote from: Taps
The cats have been taken out and the cans turned into silencers m8, as you can see theres only 1 original silencer in the system

Emissions arnt a problem on the 4i so makes no difference

aha yeh,it does help to read first,I only like pictures

TwinTurbo · August 27, 2008, 21:12:10

TT

shaun 42 · September 01, 2008, 23:07:32

great read m8 gonna look the dogs when all done ,,looks sweet now ,
also brill welding and metal fab, i did loads to my 1964 spitfire ,its nice to see some one elce do it ,keep up the good work m8

Taps · February 10, 2009, 21:47:54

Bit of an long over due update.

Friday I finished fitting the Scorpio fuel tank and made it my goal to get it up and running by Sunday, temp connected up the loom and them hit problems, I totally failed, come 10pm Sunday night I said feck it and went home had no fuel pump etc which I put down to the security module, well today after some re wiring of the loom to by-pass the module its now up and running

http://smg.photobucket.com/albums/0803/Taps56/Thunder2/?action=view&current=5478038c.pbr%20target=_blank

http://smg.photobucket.com/albums/0803/Taps56/Thunder2/?action=view&current=DSCF2006.flv%20target=_blank

Tony · February 10, 2009, 23:35:11

"With side exit exhaust who needs a radio "

kinel i cant even hear my tv! and thats just ya video

Taps · February 10, 2009, 23:53:20

Quote from: maddoldbugger"With side exit exhaust who needs a radio "

kinel i cant even hear my tv! and thats just ya video

Thats the Thunder part of the project

Leebay · February 11, 2009, 11:05:29

CHRIST! My the pictures near the PC nearly fell off the wall

Hope you`re not planning any track days with that Rob? You might have abit of trouble with the noise levels.

Good update tho..........now get it finished

mouldytbags · February 11, 2009, 16:22:24

ha ha sweet as mate . have you got them on both sides?

Taps · February 11, 2009, 16:48:57

Quote from: mouldytbagsha ha sweet as mate . have you got them on both sides?

Fuel pipes get in the way on the other side so its a no no

Simon 3 door · February 11, 2009, 22:54:22

Quote from: TapsBit of an long over due update.

Friday I finished fitting the Scorpio fuel tank and made it my goal to get it up and running by Sunday, temp connected up the loom and them hit problems, I totally failed, come 10pm Sunday night I said feck it and went home had no fuel pump etc which I put down to the security module, well today after some re wiring of the loom to by-pass the module its now up and running

http://smg.photobucket.com/albums/0803/Taps56/Thunder2/?action=view&current=5478038c.pbr%20target=_blank

http://smg.photobucket.com/albums/0803/Taps56/Thunder2/?action=view&current=DSCF2006.flv%20target=_blank

Won't be long now Rob. Once they run the rest is just detailing.

Taps · February 13, 2009, 17:38:18

Well the exhaust aint so loud now, I've managed to blow the engine up already

cossiemk2 · February 14, 2009, 00:13:31

Quote from: TapsWell the exhaust aint so loud now, I've managed to blow the engine up already

How did ya manage that then?

It took 12 psi of boost to fuck mine up..........

Taps · February 14, 2009, 08:04:51

Quote from: cossiemk2
Quote from: TapsWell the exhaust aint so loud now, I've managed to blow the engine up already

How did ya manage that then?

It took 12 psi of boost to fuck mine up..........

Was my own fault for not doing something I always do when building other peoples engines. So lets see who can guess what I cocked up

Symptom

Engine dropped a bank, engine only running on left hand bank, on removal of right hand bank Spark plugs all three were soaked with what I first thought was petrol but in fact turned out to be a mixture of oil and petrol, on removel of the plenum petrol poured out of it when tipped up, looking down the head inlets to the valves all three inlet tracks had approx 2inc's in depth of fuel in them.

Tony · February 14, 2009, 16:33:00

quote"looking down the head inlets to the valves all three inlet tracks had approx 2inc's in depth of fuel in them""

exhaust valves cant be opening as the fuel is not passing through and building up or inlets not opening correctly!

with that amount of fuel in the cylinder would check the rods it might have hyro,d!

tony

Taps · February 14, 2009, 18:22:43

Quote from: maddoldbuggerquote"looking down the head inlets to the valves all three inlet tracks had approx 2inc's in depth of fuel in them""

exhaust valves cant be opening as the fuel is not passing through and building up or inlets not opening correctly!

with that amount of fuel in the cylinder would check the rods it might have hyro,d!

tony

No fuel in the cylinders just in the tracks and plenum, oil in the cylinders but not enough to hydraulic

jonathon · February 14, 2009, 20:20:34

I'm facinated!

Guess the inlet valves on that bank are not opening, so the vacum caused by the downward movement of the piston is pulling oil from the sump not the charge from the inlet. But why? I'm not familiar with these 24 valve engines, but if something had gone wrong with the cam timing wouldn't some valves be open others shut and some in between?

Is it a blocked oil feed to the hydralic followers? Still the valves would open enough for the bank to run, wouldn't it?

Please put me outa my misery, i can't spend the rest of my life checking my puter for your latest post!

Truly BADASS car by the way.......

Jon...

Taps · February 14, 2009, 21:14:32

Quote from: jonathonI'm facinated!

Guess the inlet valves on that bank are not opening, so the vacum caused by the downward movement of the piston is pulling oil from the sump not the charge from the inlet. But why? I'm not familiar with these 24 valve engines, but if something had gone wrong with the cam timing wouldn't some valves be open others shut and some in between?

Jon...

Your the closest so far m8

Above statement is spot on, all inlet valves are shut hence the fuel in the inlet tracks and what came out the plenum, the oil in the cylinders has been sucked up from the sump as all the inlets were shut and sealed.

So what happened then and what did I forget to do

Taps · February 14, 2009, 23:55:50

Someone else has worked it out over on the XROC bb, Rob[Super12V]

QuoteDidn't torque cam sprocket bolt? something happened with the washer?

What I didnt do with my engine that I do with other peoples is build it from start to finish in one go, done a bit now and again, and in doing so I missed final torqing the cams shaft sprocket bolts

No2 inlet cam bolt lossened enough for the peg on the washer to slip out of the sprocket, the cam stopped and the sprocket was running with out turning it, the cam stopped with all the valves in the shut position and the tracks filled up with fuel with enough to go into the plenum as well.

The oil in the cylinders was sucked up from the sump as that was the only place it could draw air into the cylinder.

The good news is I Cant find any damage at all

When I found what had happened I re timed the cam and then done the compression test

The compressions were down compared to the left hand bank but still not bad, as all the valves were shut and full of fuel it would have been reasonable to presume that all was OK with the valves and just refit the plenum etc and try it but I would never had been happy even if it was OK so I stripped the head off, no sign of contact on the pistons or the valves, took the inlet valves out and gave then a quick lap in to be absolutely sure and again all was fine.

So all being well will be back up and running tomorrow, sorted for the price of a head gasket and a bit of my time.

jonathon · February 15, 2009, 00:13:40

Destractions can nearly always be held accountable!!

Pin_cushion · February 15, 2009, 00:19:00

Is one valve new... :-S
Very shiny in comparison...?

Pin_cushion...

Taps · February 15, 2009, 00:43:28

Quote from: Pin_cushionIs one valve new... :-S
Very shiny in comparison...?

Pin_cushion...

No just cleaner then the rest

Taps · February 16, 2009, 00:08:19

Well she is back running as she should be

[url]http://smg.photobucket.com/albums/0803/Taps56/Thunder2/?action=view&current=f11d37c0.pbr]

Along with a change of rad as the one I had on there leaked under a pressure test, big thanks to Mads for bringing it down from Stixy's for me, a change of heater pipe which was a sod tucked down behind the engine. No damage found and only part needed was a head gasket.

Dave · February 16, 2009, 00:16:25

Thank God for that

Gonna be a real beast

Kezza · February 16, 2009, 01:06:47

Still sounds great

Marc · March 07, 2009, 22:07:58

Didn't you need new head bolts, as they are the stretch type?

Taps · March 08, 2009, 07:17:01

Quote from: MarcDidn't you need new head bolts, as they are the stretch type?

No m8, they where new bolts and there be fine

Dave · March 08, 2009, 10:41:47

Yeah you can re-use the bolts once.

Keep ploding on Taps.

Marc · March 08, 2009, 11:04:54

Nice to know! Is the torque setting the same then? On mine I did 50 Nm + 90° + 90°, as that was what is said on the head gasket set.

BTW, the car looks great mate!

Taps · March 08, 2009, 12:26:25

Yeah torque done the same

Other ones where I've used new bolts I've checked them against the old ones and theres been no difference in length at all

Some manufacturers give you a max length stretch bolts can be before needing new bolts instead of the blanket use new bolts from others

Thunder Saloon 24V

shaun 42

Simon 3 door

Pin_cushion

Kezza