1.5 tsi, any progress?

[Mr Pig]

What about using the money to recon you engine and bearings etc… I only say because I had to fit a replacement lower engine from an Audio last year it’s like new car.. my car is on 125000 on the clock but I’m keeping as long as possible as I agree with all your comments. Whats out there to replace with

I'm looking at the Audi TT. Pick would be the 2L 230 but finding the ideal car seems tricky. Audi were very stingy with the standard kit, you'd be amazed by how many of these cars do not have cruise control!

I don't see the point in sinking money into my Leon. Cars get to a point where they start costing you money and it doesn't balance out. Any money you put into an older car is gone, you don't get it back. No one is paying more for a car with a replacement engine or new clutch. The trick is to get rid of cars before they get to that point.

 

[RUM4MO]

Some of these modern VW Group engines, it seems, can't be rebuilt, checking through the parts cat for your engine will confirm if it can be rebuilt.

 

[SuperV8]

@SuperV8

So did a 71 mile round trip of mostly motorway on this sunny Saturday.
Managed to squeeze just over 40mpg - Cant say im impressed considering the type of journey...

Start of trip:

Coolant temp	Oil Temp	Actual Coolant temp at radiator	Specified Coolant Temp at radiator
13c	13.5c	13.8c`	105c

End of trip:

Coolant temp	Oil Temp	Actual Coolant temp at radiator	Specified Coolant Temp at radiator
101c	96.5c	41.7c	102.7c

Logs from this journey:

Log #934498

log.tunezilla.com

Radiator temp peaked at 51c
View attachment 47772


Fan operation vs coolant temp

I found it strange that your coolant temp keeps dropping down below 90 - maybe down to 86-87.

But then checking SSP555 about the 1.5evo and using google translate; it says this:

One moment, please...

"Phase 04 Coolant temperature regulation to 85–105 °C
After the engine has warmed up, the coolant temperature regulation begins, depending on the operating mode.
This regulation is carried out exclusively via rotary flap 1. Rotary flap 2 is fully open and remains in this position. The coolant temperature is maintained at 105 °C at low load and speed, and is reduced to 85 °C at high load and speed.
Regulation is carried out steplessly according to programmed parameters"

So this is probably working as designed - though we don't know what they class as 'high speed'? - would have been interesting to add your speed/load on to this graph - to see if these coolant temp dips correlate to your increased speed/load?


Your coolant gets upto temp in around 6 minutes and oil in about 17 minutes - seems 'reasonable' to me but be nice if someone else with a 1.5 could comment if this seems reasonable?

I don't understand why your actual and specified temp at radiator are so different?

The fan can also come on with AC demand - so not sure this is anything to be concerned about - unless it was coming on at 70mph?

 

[SuperV8]

Some of these modern VW Group engines, it seems, can't be rebuilt, checking through the parts cat for your engine will confirm if it can be rebuilt.

By rebuilt - do you mean cylinder over boreing? If yes that has been the case for many manufactures for years using spray on cylinder wall coatings.

I'm sure you can buy the required engine parts block/crank/pistons/head etc- but whether it makes financial sense is another mater.
Cam's for my TDI for example are available - but ONLY as a complete cam module - which includes all cams in a housing and would be very expansive.

 

[RUM4MO]

I was referring to the bottom end, assembled initially while the block is braced in a jig, loosen off bearing caps at your peril.

 

[SuperV8]

I was referring to the bottom end, assembled initially while the block is braced in a jig, loosen off bearing caps at your peril.

Just checked and I need to revise my comments - you can't buy crank or block for the petrol engines! Only pistons and rods.
You can't buy the TDI blocks either - but you can buy the TDI cranks and bearings!