Start but no idle

[WESTYJACK]

Last weekend I drop one head to replace broken exhaust stud and to resolve my problem of exhaust leak and backfire
at the same time I install new plug ,cap,rotor,contact braker,wires
change the brake check valve (very old)

when everything was reinstall I start the engine start ok but i have to keep the trottle because engine die
and i heard some little backfire comming from tthe air cleaner
no good throttle at all
when i push the throttle start low for 1-2 sec then start to go hi

shit before the job everything was running great
idle was steddy at 850

no i check wires 1-4-3-2 was ok
look for vacuum leak see nothing
where i'm suppose to begin my recherche
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VW bus type 2 1978 transplant engine 1975 1800cc fuel injection

[SGKent]

check the dwell and timing again.

also check each wire again to be sure two aren't swapped.
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“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin

[Wildthings]

Look for vacuum hoses left off. Is the plug connected to the AFM?

[WESTYJACK]

ok have to check
afm plug
wire again
vacuum hose left off
but for dwell and timing i cant my engine die at idle if I let the throttle and I have to play continuously with the throttle to keep it alive
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VW bus type 2 1978 transplant engine 1975 1800cc fuel injection

[SGKent]

afm plug off will definitely cause issues
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“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin

[WESTYJACK]

afm plug is there
recheck fire order at cap 1-4-3-2 rotor pointing 1 at TDC

3 vacuum leak possibility
hose brake work on it
intake manifold at injector 3-4 unbolt for head work
intake manifold boot 3-4 undo to work on head

what do you think
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VW bus type 2 1978 transplant engine 1975 1800cc fuel injection

[WESTYJACK]

afm pluged
firing order 1-4-3-2- recheck rotor pointing 1 at tdc

vacuum leak 3 possibility
brake hose work for change check valve
manifold intake at injector unbolt to work on head
manifold boot undo to work on head

what do you think
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VW bus type 2 1978 transplant engine 1975 1800cc fuel injection

[busdaddy]

Was the distributor moved during the repair?
Is the TS2 secure and plugged in?

Any black smoke when it's running?
_________________
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Слава Україні!

[WESTYJACK]

ts2 was reinstall on the head after work and i check for omhs
the distributor was remove to remove the tin and i forget to mark it but for installation i put the engine at tdc 0 on scale open the valve cover and check 2 valve on 1 cyl loose
put the distributor in with rotor pointing no 1

i think i move the engine with no distributor in when i do the job is it important?
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VW bus type 2 1978 transplant engine 1975 1800cc fuel injection

[busdaddy]

Well it runs so you must have gotten it back in OK, but if the timing is retarded too much it may not idle.
_________________
Rust NEVER sleeps and stock never goes out of style.

Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!

Слава Україні!

[WESTYJACK]

the engine run like it's completely out of timing

no idle no power little backfire in intake
if timing is retarded how can i replace it with and engine that run like that
cant work with my timing light with the engine running like that

how about a major vacuum leak does the engine was running like that
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VW bus type 2 1978 transplant engine 1975 1800cc fuel injection

[busdaddy]

A vacuum leak exhibits very similar symptoms: https://www.thesamba.com/vw/forum/viewtopic.php?t=620083&highlight=smoke+tester
_________________
Rust NEVER sleeps and stock never goes out of style.

Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!

Слава Україні!

[WESTYJACK]

Thank you Busdaddy
tomorrow i'll check for vacuum leak all around
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VW bus type 2 1978 transplant engine 1975 1800cc fuel injection

[WESTYJACK]

is it possible that the timing is off enough to not be able to idle just because a change the breaker point
and how can i check the timing with no idle
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VW bus type 2 1978 transplant engine 1975 1800cc fuel injection

[SGKent]

yes - put the timing light on it and have someone crank it over for you. See where the light is when it flashes. Set it to around 5 to 8 BTDC +/- to start and adjust it once it starts. Check the dwell angle before you do because if you adjust the points afterwards it will change the timing.
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“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin

[mikedjames]

[WESTYJACK]

Thanks guys
iI have a remote starter install permanently in engine bay
so gonna try this an report
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VW bus type 2 1978 transplant engine 1975 1800cc fuel injection

[WESTYJACK]

thanks guys
remote starter install in engine bay
let me try this an report back
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VW bus type 2 1978 transplant engine 1975 1800cc fuel injection

[WESTYJACK]

update
ok found a vacuum leak a the t fitting where the brake hose connect
t was cracked
now the engine run much better then yesterday but no idle at all
I dont have to play with the throttle to keep it alive and i can stay my foot on the pedal and keep it at 950 rpm steady

now i have to check the timing

check with the timing light with the starter no engine
i have no idle
is it right

my dwell is 60 suppose to be new 44-50
to open ? set with filler gauge at 016
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VW bus type 2 1978 transplant engine 1975 1800cc fuel injection

[SGKent]

use Google translate. When you do put the French in and let it translate to English. Then put the English back in and let it translate to French. Do this until you are sure you are saying what you want to.

utiliser Google Translate. Lorsque vous mettez le français et laissez-le traduire en anglais. Ensuite, remettez l'anglais et laissez-le traduire en français. Faites-le jusqu'à ce que vous soyez sûr de dire ce que vous voulez.
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“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin