Papez

6U0698019 is for ABS, 23,71mm. 6U0611019 is non-ABS, 22,2mm.

@RicardoM Exactly. And Felicia has enough torque to generate most power between 5000-6000RPM, so for both maximum speed and acceleration, it needs to be kept there.

You need power both to accelerate and overcome drag. Engine torque alone is meaningless to describe vehicle's dynamics - Felicia 1.3 has torque peak at 2600RPM, but power peak at 5000RPM - best acceleration is achieved at power peak, because torque is multiplied by gearbox. 1.3MPI gearbox is actually quite good for performance - top speed is achieved around peak power at 5th gear (~170km/h @ 5000RPM). Torque drop around 5500RPM is just enough to keep power constant when switching from 4th to 5th. If you switched earlier, you'd have more torque, but that'd be lost in the gearbox.

Probably clogged vent tube. It's next to release arm.

Yep, that's right. Gearboxes are nearly identical, there are just some reinforcements around differential on the 1.6 and 1.9 casings. Oh, one thing, 40kW gearboxes are longer than 50kW - 1.3MPi 40kW has same ratios as 1.6, while post-facelift 1.3MPi 50kW is the shortest available. BTW, why do you need crankshaft position sensor? 1.6 camshaft sensor wouldn't work?

No, in 1.3, engine's flywheel serves as a triggerwheel.

Yes, but it won't work, because 1.6 flywheel doesn't have cutouts that serve for position detection. And 1.3 flywheel won't fit. I think I've seen kit for 1.6, which used modified crankshaft pulley and sensor mounted next to it. gearbox is not based on Favorit (which never had 4 speed gearbox), it's Trabant's design, it's just coincidence (probably due to centrally planned economies reusing same designs/licenses)

Yes, there are just some tweaks in maps for improved starts etc., otherwise, they are identical.

Yes, it is possible to mount the flywheel wrong way. Cutout with extra teeth should be on the bottom with 1st cylinder at TDC. The system fires two plugs at the same time, one in compression, other in exhaust phase. I'm not sure how it acts when it's in different phases, where electrical properties are different. You wrote earlier that you can hear solenoids in injectors being activated, that means that you should get some signals. Maybe your method of measuring is inadequate for such short signals?

Is it mounted correctly to the engine? Its orientation is critical for proper firing order.

It is 0.20mm for steel pushrods, 0.25mm for aluminium. Old Skoda engines had steel pushrods all around, so it was 0.20 all around. 135-6 engines have aluminium pushrods on intake valves and steel on exhaust, so it's 0.25 intake, 0.20 exhaust. Although, there is some info, that steel pushrods can be set to 0.25 at temperatures beyond 32°C to compensate for different thermal expansion.

What brand was the timing chain? Some aftermarket chains become noisy in short time.

Right pressure is 3bar relative to the intake air pressure. Disconnecting vacuum tube or measuring with engine off simulates intake air pressure being same as atmospheric pressure, which is why fuel pressure rises to 3bar.

Multi-electrode plugs are prescribed by Skoda...

Workshop manuals says around 2.5 bar. More important is, whether presure rises to around 3bar, when vacuum tube to the regulator is disconnected?

That's because most people don't even know it wasn't installed in the factory - they were usually installed at dealership/importer, before they got to the customer.

There are (atleast) three types of AC actually. One is original, documented in ETKA and workshop documentation, I posted picture earlier. They were introduced in 1997 or 1998. Other two were retrofit kits: One made by Diavia, looks almost like original heater unit for Favorit with some extra room for evaporator, which is placed right next to heater core. You can see it on this page. Notice repositioned PS oil reservoir (this instalation has PS pump placed above alternator) https://skoda-virt.cz/cz/auta/favorit-a-felicie/12063-colorline/ Second one was made by Alex (or atleast several topics mention it as Alex unit, but it might be just distributor in Czechia) and that's one which is present on pictures above. It replaces original fan housing piece of heater unit, which is why filter meant for heating won't fit. From what I've found, installations of these units had several variants, using different compressors, radiator fans, heater panels... Unfortunately, I couldn't find any more info or documentation about Diavia and Alex units. Edit: Found this page: https://www.alex-original.com/SKODA-Front-AC-units It doesn't list Felicia anymore, but I found PNs on another page: SKO 11135 - 1.3BMM SKO 11137 - 1.3MPI with PS SKO 11138 - 1.3MPI wothout PS SKO 11165 - 1.6 with PS SKO 11166 - 1.6 without PS SKO 11191 - 1.9D

It depends, if your valves actually need some adjustment at 15000km intervals. Skoda service plan shows that valve clearance was checked at annual checks and every 30000km.

I meant in first post.

One I posted has slot for filter behind evaporator, but this one is so crammed, that I'm not sure if there's any space for filter at all... One you have posted is variant for heating without AC, which is entirely different..

You don't need keys to test lighter and interior light (the one on ceiling near center mirror) - those work with ignition off. There's not much fancy to say about Felicia It is really simple car by todays standard. You have Felicia 1.3 MPI 50kW hatchback, pre-facelift model. Judging by analog clock, it is base trim, with no optional equipment (except for headlamp washers and 4-spoke steering wheel I can see on pictures) The engine is evolution of Favorit 136 engine, with multipoint indirect injection (each cylinder has its own injector, but it's in intake, outside of combustion chamber). It is Euro 2 emission standard. It needs gasoline with atleast 95 octane rating (which is standard nowadays). In my opinion, it is the best engine you can have in Felicia, since it's reliable, fuel efficient (you can easily get below 6l/100 on average), and it's not much weaker than 1.6. Only downside is, that it can get quite noisy in higher RPM.

Car in picture you posted doesn't have front foglights, so it doesn't have relay Second relay is for rear Intermittent wiper, which is optional equipment. Clock (atleast digital, I'm not 100% sure about mechanical) is powered from the same fuse (15) as interior light and lighter socket - do those work?

then 1997 manual will do for you. Facelift is variant from January 1998, with Octavia-styled front end, painted bumpers and lighter interior. However, changes are mostly cosmetic compared to 1997, so even manual for newer model would work for you. Anyway, what issue do you have with your car?

Model year is a different thing from actual year of manufacture. Model year 1998 started in summer 1997. I guess you have pre-facelift model, right?

Well, it didn't sound like genuine question. Anyway, I did mine roughly every year. But I did about 30000km by that time.