seans saff

I brought my rs turbo yestetday ran fine took it out today after 2 mile at sitting at 60 mph car started spluttering, I thourt it may have blown a plug as its been sitting a while its just had new plugs new dissy and rotor arm, tried start it and it turned over for a good while then back fired, tried again and it ran but was still running rough, left it a bit went start it agin and wouldnt start and backfired again, so iv left it now but any one got any ideas?

BigChuck

how longs it been sitting, and is the fuel fresh

weegaz22

when you say new dizzy, do you mean the cap or the whole distrubutor? timing ok? dizzy bolted up tight to head? etc

seans saff

Sitting 5 year fresh fuel, and just a new cap not full dissy, although timing is adjusted as standard marks dont line up in dissy, but like I say ran fine yesterday iv checked all the fuses,

Graceland

Metering head will probably be stuck - See if you can move the plate up and down inside it.

seans saff

Also when I start the car it turns over realky slow and sometime stops turning, but then sometimes it starts ok, battery is new, but starter looks really old could the starter be seizing?

seans saff

Thats under the air filter?

Paul_RS

iTrader: (4)

Yup its under the filter.

seans saff

Will check that tomorrow, what if its stuck?

Adam.

If its been sat up 5 years get it to a tuner mate, will do it the world of good.

xr4x4rs

iTrader: (5)

crack the fuel pipes off on the metering unit and turn ignition on, if you have no fuel come out then you need to replace this

its common on these to fail, so personally id look into efi management for reliabilty

seans saff

Will give it a go tomorrow, hope its something simple, car ran fine for 50 mile, I will be geting it set up before I use it but ideally want it running like it was yesterday so I can get it to a tuner

1.9 xr2 on 40's

disconnect the cold start (injector goes into the plenum from the underside will prob be blue plug)
if that doesnt help hold down the meterhead flap a bit to see if it starts

if theres fuel when you crack off the 11mm banjos on the meterhead you know fuel pump and reg is fine so you can crack off the injectors next

fuel gets to the meterhead but not always the rest of the way due to the flap and mech being gay

seans saff

Thanks, ill give these ideas a go tomorrow

vroooom ptssssh

Could have had condensation in the metering unit and caused a bit of rust, they don't like water!

seans saff

Thanks for all the help I will see what I can do tomorrow

seans saff

Right iv took some advice cleaned metering unit, and checked dissy timing car now starts first turn of the key, but is not fireing on no 1, iv got a new plug in and there is a spark at no 1, what should I check next?

1.9 xr2 on 40's

the leads would be my next bet

vroooom ptssssh

is no1 plug wet with fuel? if not, likely injector blocked or something along those lines

weegaz22

crack off the banjo for cyl 1 on the metering head, see if there's fuel coming out?
then see if the spark plug is getting wet, if it is then next step to me would be compression test, you have spark and fuel, so compression next,rings/valves/gasket testing if it ain't the injector blocked

seans saff

Ok ill check the fuek pipe, hope it is just fuel only dun 50 mile in the car and that was at 60 mph and zero boost as its desperate for a set up

seans saff

Right iv got fuel and spark at the plug, so goin av wait for my mate di a compression test tomorrow, just what I need, more expense when iv only had it 2 days

weegaz22

chances are if its been sat for 5 years the fuel will have turned to varnish in the lines, you then put in new fuel and started driving it, all the varnish starts to breaks up and clogs metering head and injectors, 1 cyl only gets half the fuel so runs lean and hot and cooks the gasket

the driving it 60 miles might have done more harm than good with it sitting so long

comp/leakdown test will tell

in all fairness I've had an RST with the metering head and it was a pain in the tits, like the guys on here said better swapping it to efi if its a project, it can rule out a lot of annoying faults

seans saff

right just done a compression test and iv only got a bit over 70 psi on piston 1 compared to over 140 on the other 3, aparently next i need do another test to see if its valves or rings? if this sounds right? all new to me

vroooom ptssssh

Leakage test will assertain where the leakage is, inlet, exhaust valve, breathers (bores)

weegaz22

well if you put a few squirts of some engine oil down the plug hole then redo compression test, if it goes up on first few cranks then its the rings, as the oil helps provide a temporary seal on the rings against the bore's walls....if it don't go up then its probably a head off job to look at the valves/check gasket to figure out whats up...unless you know someone with a leakdown tester....but chances are the heads still gonna need to come of either way imo.

seans saff

leak test done, its piston or rings, best read through recipts or ring last owner see what pistons where used

v man

if your looking at a rebuild i have a fez turbo bottom end sitting in the garage so perfect for goimg efi

100 quid for it but it will need a freshen up

seans saff

is it a 1.6 still? as mine is a 2.1 zvh so was hopeing to just get new rings or what ever is damaged

cheers

v man

oh yeh sorry

standard 1.6 mate

saying that if your is a zvh maybe a standard bottom end you have and its shit the bed