bang bang splutter

[MrGreen]

Greetings all.

This is my first post on the forum. After a visit to santa pod this weekend for the big bang NOT in my type 25 but in a berlingo ( not cool). I have to to ask for help. Thanks to all who browse these messages of woe ! i have fixed many problems from my visits here but his one is beating me. some facts about my problem.

Model: Transporter panel van
Year: 1986
Fuel: Petrol
Engine: 1.9 Dg
Carb : perburg 2e


Changed coolant ( correct antifreeze amounts and bleeding successful)
Changed the plugs
Changed the HT leads ( put back in correct order )
Changed Dizzy cap ( Put back in to line up with cyl1)
Changed rotor arm
New air filter

I have put everything back together but i am having problems with the carb i think.
facts about the setup.

1. I have a digital Tach connected to the coil this is telling me that its idling a bit fast at around 1000rpm .

2. I have aligned the crank wheel to to get the tdc setup on center of the block. then checked the timing with little moving of the dizzy this is ok. ( checked with the vac tube removed and the engine warmed)

This is were the problems begin.

The van starts fine and seems to idle ok but if i put my foot down i get loud bangs from the air in on the carb and it sounds like its firing wrong.

When i try and get the idle down to 950 it stalls but does seem to pick up if i plug the vac back into the dizzy .

I have checked the fuel filter on the line, and the filter inside the fuel in nozzle on the carb, both of these are clean.

The vac tubes and elbows seem to be in a reasonable condition

Turning the idle screw doesnt seem to be making any differance. Not what i would expect, the engine sound should change alot with a half turn you would think !

I have not changed the mixture screw yet (old plugs had heavy carbon deposits)

Does anyone know what the timing advance angle is ? i think it should be between 16 and 20 degrees but not sure.

thank you for reading

Many thanks

Mr Green

[albertramsbottom]

Welcome to the forum

I no expert thats for sure and certainly not with your engine, but when you say that you have lined the dizzy cap with cylinder no 1 do you mean that you have made sure that you are at TDC and then made sure that your rotor arm is ponting to the mark on its body which is TDC and no 1 ht lead,

And when you mention that you have found TDC on the crankcase, are you sure that is tDC. I would have thought that TDC would be marked on your pully. Its not allways easy to see

Albert

[MrGreen]

Sorry for my hic up. The rotor is lined up with cyl1 and the tdc is on the pulley and lined up with the center of the crank case on the split !

thanks Mrgreen

[albertramsbottom]

Sorry for my hic up. The rotor is lined up with cyl1 and the tdc is on the pulley and lined up with the center of the crank case on the split !

thanks Mrgreen

Right well somone else will have to comment on this as on my CU engine TDC is not at the centre of the crankcase. Its more like 20Degs before as I have a timinf scale fitted around the pully.

Im sure you have done your research though and have it set up right. Although it doesnt sound it

[Hacksawbob]

it will point at that position rotor crank on number 1 and pulley wheel mark twice per engine revolution. to be absolutly sure you need to pop the valve cover off and rotate the engine til both valves on number one cylinder (right front) has both valves closed with the pulley mark at the top. OF course this is just your starting point.
check the idle stabiliser plugs are joined together
suck on vac advance and check there is movement on the plate with the rotor arm removed, it doesn't proove conclusivley that its ok but will eliminate worn advance unit

check the wiki
https://club8090.co.uk/wiki/Pe ... 1.9_Timing

[Ian Hulley]

From memory the timing on a DG should be ~5 degrees BTDC. If you do as Bob say's with both valves closed on pot 1 (put the cover back on) and turn the dizzy so as the rotor arm points at the line in the dizzy then that's AT TDC. it should start and run (perhaps slightly roughly) and then you can turn the dizzy untill it's running smoothly.

I'd advise buying a Haynes for all those little settings

Ian

[MrGreen]

Thanks to all for replying i think that i will take of the rocker to be sure of vlve postion. I am fairly sure i have followed all the other instructions !! post bak in an hour or two thanks again

Mr Green

[MrGreen]

My carb has not got the digijet does this change anything !

[Ian Hulley]

DG is the engine type not an abreviation for Digijet injection

[MrGreen]

thanks