delidubz69bay
Well-known member
Hi all ,I was totally gutted recently after a planned trip to a local show was ruined when my bus conked out on the motorway.
I currently have a 1776 in my 69 t2 early bay
It is based on a new universal case built by a well known engine company.
It has less than 6 thousand miles on it.
It was built about 8 years ago and came with a 009 dizzy fitted with paint dot(guarantee void)on timing clamp to ensure no one had messed with it.
All other parts where new and it had recon twin 40 dellorto's. From a. Reputable firm.
I have never really been able to get it to run as good as I'd liked in the 12 months of ownership.
It splutters and Coffs until warm.
When warm it often splutters through the carbs.
I heard that the dellortos can do this.
I fear it was never set up correctly by the previous owner. Or any garage he may of took it to.
I took the carbs apart to find that the pump jets had been( persuaded to operate)
This became apparent by the tiny holes on two jets being opened up,on the left hand side carb
No idea who had done this as it was before my ownership.
I rebuilt the carbs in any case with four new pump jets etc.
I ran it local and thought it was ok....better
There are loads of speed bumps where I live and it's difficult to go anywhere without stopping and starting.
It has now developed a major running fault on a steady run
I have checked for ignition and possibly any fuelling issues ,but I can't fathom it out.
This year in preparation for attending some shows etc,I fitted new r9 fuel lines including a new tank outlet.
The original tank filter was spotless and was re used.
I have a further filter close to the tank.
It seems to almost run perfectly on tick over until I go for a steady drive.
It will run out of steam and misfire.
After a while it gave a Big Bang through the exhaust and seems to clear.
I got it home and investigated a few things.
Carbs have since been thoroughly cleaned again and rebuilt recently with new needle valves and pumps jet diaphrams,pump jets.
And more recently it has a new ethanol resistant fuel pump.
All carbs have just been balanced.
Tappets set and rechecked ,compression tested,ignition set.Dwell etc
Still no great results in running
I have an oil pressure light/gauge and also an oil temp switch(mounted in the t3 blanking off plate)
Plus VDO gauges to match.
It has never got hot whilst this problem has arisen
It also has a maxiflo 3 full flow oil pump on it which run to an external oil hp1 filter and oil cooler.
Background work
This year however I have hardly used it.
Before it conked out I serviced the engine.
I fitted a autocraft towbar.
I have also just fitted a brand new vintage speed exhaust.
Never went on a run until going to carry on dubbin and since then I've had nothing but grief.
I've swapped the dizzy for a very good original Bosch 009 ,changed points plugs condenser,cap,rotor,even changed the coil and leads.
Re-timed it.
I thought I'd cracked it as it seemed to rev and run better .
Sadly
To no avail
Was going to another show and the same thing happened.
Not sure if it's fuelling,the exhaust,burnt valve seats or what..?
I was going to put the empi/ mondo exhaust back on to see it it made it run any better.
This would mean removing the tow bar.
But I can not work out why it would conk out or run funny on a stretch of road.
It's seems to me that it may need a electric fuel pump and regulator or filter king or similar
When I feel it is bout to loose power it feels like it's going to blow the exhaust off and if you put your foot further down it will cause an explosion in the exhaust.
Is that ignition timing..?
I've took the carbs back off and it's sat there all feeling sorry for itself.
I have tried most things I can think of before I decide wether to pull the engine out and have a look inside the heads etc
Any further thoughts.
You time will be a welcome pleasure.
Thank you.
I currently have a 1776 in my 69 t2 early bay
It is based on a new universal case built by a well known engine company.
It has less than 6 thousand miles on it.
It was built about 8 years ago and came with a 009 dizzy fitted with paint dot(guarantee void)on timing clamp to ensure no one had messed with it.
All other parts where new and it had recon twin 40 dellorto's. From a. Reputable firm.
I have never really been able to get it to run as good as I'd liked in the 12 months of ownership.
It splutters and Coffs until warm.
When warm it often splutters through the carbs.
I heard that the dellortos can do this.
I fear it was never set up correctly by the previous owner. Or any garage he may of took it to.
I took the carbs apart to find that the pump jets had been( persuaded to operate)
This became apparent by the tiny holes on two jets being opened up,on the left hand side carb
No idea who had done this as it was before my ownership.
I rebuilt the carbs in any case with four new pump jets etc.
I ran it local and thought it was ok....better
There are loads of speed bumps where I live and it's difficult to go anywhere without stopping and starting.
It has now developed a major running fault on a steady run
I have checked for ignition and possibly any fuelling issues ,but I can't fathom it out.
This year in preparation for attending some shows etc,I fitted new r9 fuel lines including a new tank outlet.
The original tank filter was spotless and was re used.
I have a further filter close to the tank.
It seems to almost run perfectly on tick over until I go for a steady drive.
It will run out of steam and misfire.
After a while it gave a Big Bang through the exhaust and seems to clear.
I got it home and investigated a few things.
Carbs have since been thoroughly cleaned again and rebuilt recently with new needle valves and pumps jet diaphrams,pump jets.
And more recently it has a new ethanol resistant fuel pump.
All carbs have just been balanced.
Tappets set and rechecked ,compression tested,ignition set.Dwell etc
Still no great results in running
I have an oil pressure light/gauge and also an oil temp switch(mounted in the t3 blanking off plate)
Plus VDO gauges to match.
It has never got hot whilst this problem has arisen
It also has a maxiflo 3 full flow oil pump on it which run to an external oil hp1 filter and oil cooler.
Background work
This year however I have hardly used it.
Before it conked out I serviced the engine.
I fitted a autocraft towbar.
I have also just fitted a brand new vintage speed exhaust.
Never went on a run until going to carry on dubbin and since then I've had nothing but grief.
I've swapped the dizzy for a very good original Bosch 009 ,changed points plugs condenser,cap,rotor,even changed the coil and leads.
Re-timed it.
I thought I'd cracked it as it seemed to rev and run better .
Sadly
To no avail
Was going to another show and the same thing happened.
Not sure if it's fuelling,the exhaust,burnt valve seats or what..?
I was going to put the empi/ mondo exhaust back on to see it it made it run any better.
This would mean removing the tow bar.
But I can not work out why it would conk out or run funny on a stretch of road.
It's seems to me that it may need a electric fuel pump and regulator or filter king or similar
When I feel it is bout to loose power it feels like it's going to blow the exhaust off and if you put your foot further down it will cause an explosion in the exhaust.
Is that ignition timing..?
I've took the carbs back off and it's sat there all feeling sorry for itself.
I have tried most things I can think of before I decide wether to pull the engine out and have a look inside the heads etc
Any further thoughts.
You time will be a welcome pleasure.
Thank you.
