1Y cutting out when hot

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Grumpy Midget

1Y cutting out when hot

Post by Grumpy Midget »

I have a problem with my 1Y engine, my last post was that I could not get it to start, was informed to break into plastic immobiliser box, which i did do and it started, I may have done a foolish thing as to the 1Y pump was so reluctant to start due to no choke mechanism, I decided to change the pump to using a turbo pump from a SB 1.6 Passat turbo engine.
Took the 1Y out to-day for a test run and put fuel in it, on reaching engine temprature i noticed Temp' gauage was steady at just to the right of the water light, after leaving petrol station at junctions or when changing gear engine would just cut out, it did this 3-4 times on the 4th time when it cut out i got the buzzer of doom, got it home on looking in the engine bay there is no evidance of leaking water or any loss off iol and its not breathing heavy. Is engine overheating? I did notice that my expansion tank was 3/4 full and the topup bottle behind number plate still had the same ammount of water in is water meant to flow in and out from both tanks, anyone any ideas,
Thanks to any replys in advance

camper
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Post by camper »

I have a 1Y engine and have no trouble starting without the cold start.I no that a 1.6td pump with 1.9 valves works well.

Fritz
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Post by Fritz »

Y4UKMDACHFO...........For the uninitiated this means; Why, for you kick my dog and call him foo cough......

I am amazed at the lack of responce to this plea for help,,,,,,,,,more so from all those who have fitted the 1Y motor as it is or in the 'pick and mix' format.

Provided the cam/belt timing is right I would have to suggest a thermostat fault with this 1Y motor, if the system has been fine with the SB motor previously fitted.

Remove the stat......road test check temp before looking any further into this problem.

Regards

Fritz,,,,,,,,

PS, I'll pick you up @7pm Thursday evening....
One day you will find me,,
Driving in my Camper,
With a Surf and Paisley wrap on both sides....

camper
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Joined: 30 Oct 2005, 20:26
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Location: Bookham Surrey

Post by camper »

You said break into the plastic imobiliser part.Does this mean you fired it up and had problems on your first run with it.As it may be you have a engine with mechanical isues anyway.

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ringo
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Post by ringo »

Im sorry, but i havent got a clue about this one.

Fritz's idea about the thermostat makes sense (i think, in other cars i have had the temperature gauge will not register anything if the thermostat has not opened - is the temp sender on the engine block on the T25, i think it is).

Anyway, thats got to be a good idea to try that.

Is your passat pump a known good one?

Is the fuel switch off solenoid still switched on when it cuts out?

Good luck and let us know how you get on.

Ringo
Now driving a big bad VW LT Florida.

Fritz
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Location: Ormskirk, Lancashire

Post by Fritz »

Just an update,,,,,

After chatting with Mr Grumps while waiting for the tow truck the other night, he now tells me his earlier problems with the 1Y may have been self inflicted,,,,,,, he some how managed to get the injection pipes mixed up and so cocked up the firing order,,, :shock: How the thing was running at all was anyones guess....
Then after twiddling with the pump thinking it was a spill duration problem he basically ballzed the job up all together......

Anyway an injection bloke re-set the pump on a test rig, pipes were sorted and the thing burst into life like a new one,,, :D This was till it stopped on route to the Munkie Meet last Thursday, I diagnosed a suspected tensioner fault and he now tells me the tensioner was brand new and does look like it is damaged,,,,,, this went on to cause the belt to jump a few teeth on the cam wheel and now we have some damage to valve shims and valves.

This chap has the patients of a Saint, and is doing really well to stick with it....

Regards,

Fritz,,,,,,,,,,,,,,
One day you will find me,,
Driving in my Camper,
With a Surf and Paisley wrap on both sides....

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ringo
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Post by ringo »

I have no idea how you could get the injector pipes the wrong way round!

Thats bad news about the head - maybe the tensioner wasnt tight enough?

At least changing the head is a tad easier than changing the engine - should be able to pick one up fairly cheap too.

Still a costly process after gaskets and getting the head skimmed though.

Give him my regards and the best of luck

Ringo
Now driving a big bad VW LT Florida.

Grumpy Midget

Post by Grumpy Midget »

Thanks for the flowers Fritzz,
slightly overexagerated. The pipes were not the wrong way round or completely ballsed up, what I did i had them the correct way only I had No 1 injector pipe connected to No 4 on the pump, so it was running, it just took awhile for it to fire up and when was running it was erratic and a very rich unburnt diesel coming out of the exhaust, I gave the pump to a diesel specialist in Widnes to check it out an set it up to fire on No 1 I was informed it was an electronic fuel pump and he had indicated with a red cap which was No 1, on testing the pump with a computer + analizer No 2 on the pump was slightly down on injector so he has adjusted it to match the others.The semi automatic tensioner pully had failed due to a problem with the back plate cover, who ever had had the back plate off before me had not secured it correctly they ommitted to refit the bolts that hold the coverplate to the block/cylinderhead, hence the rear of the tensioner got wedged in the backplate, Head is removed and in the Diesel specialist workshop awaiting to be inspected and repaired, I asked Fritzz to take the head and strip it down and repai it for me, but he informed me he didn,t have the correct tooling for the job.I stripped the camshaft out myself to see what damage had been done, I could not find any Valve shims as Fritz had said I needed to buy a shim removing tool, to anyone who hasn,t stripped a 5 bearing camshaft you dont need a shim removal tool simply there isn,t any They are Haydraulic Tappets and self adjust, So decided it was beyond the means of Fritz and myself to repair it,
Sorry for the long winded report back, I am a Paiter by trade and worked in body shop motor repair shops and I admit I am not a Motor mechanic , but I am not to old to learn by my mistakes and others,
It has been a very exiting learning curve to convert an 1982 Aircooled to water and put in a Derve Donkey engine and done the correct way any motor enginere can inspect my friuts of labour,
It started as a Conversion it is now become a Project its finnished but a few costly niggling problems. I am now 63 yrs old and still look out of young eyes :shock: I know I can do this but takes a little longer when your long in the tooth. :wink:
:evil: I am now looking for a replacement head as what my brother tells me on first impressions from Diesel Craft in Widnes the head may be Foobarbed. Jeff.

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