Timing does drift on older cars. Im an ex Saab Master Tech, and i used to see timing drift 1 to 2 degrees per year on old 900 and 9000 models. This was due to the timing chain wear which then puts the distributor out. So i used to quickly reset them at every full service. Even now i will occasionally get an old 900 brought to me and the timing will be a good 8 to 10 degrees out.

@SeasideGarage

3 ай бұрын

makes sense with chains! but more then I was expecting!

One of the best engines ever made!

Lovely old bus. As a child I spent a lot of time in my Mum's 1983 240DL. It was a powder blue colour, perhaps the same as this car but I don't think I could tell on film. I loved that car, with the overdrive gearbox and massive red clicky lights to tell you to put your seatbelt on. Perhaps one day I think of a reason or find an opportunity for a Volvo too...

I like you are using a 1980s Sun Diagnostic analyser on a late 70s car

What a combo! Volvo 244 and the Sun machine! Thanks for showing the test procedures! Yes, the only downside of those engines is they like gas a lot😅

It will take a little time to settle. It will have been fouling the cylinders with wacky timing. Though at -20 btdc, it was basically tuned for top speed.

I heard you make comment about points gap. One think we used to have on the VW’s I worked on is distributor bushings would wear which would cause dwell issues. I’m sure your Sun machine shows ignition spark burn times, KV voltage and a raster screen showing all 4 cylinders. With that screen you can see dwell variations between cylinders which would mean the distributor needs overhauled.

@SeasideGarage

3 ай бұрын

Yea... It can do that to! I am still learing to use it all :)

Don't forget that the data plate on the car was for use when new and doesn't allow for the use of unleaded petrol which will require the engine to be adjusted to compensate,also if the gas analysis is anywhere near correct then I would reconsider the adjustment as it's running lean I'd like to see it at 3% on hot idle and you Need to check that it leans off when it's under load,as the carb is notorious for wearing its needles and jets,it's worth considering the state of the rubber diaphragm also. Good luck with it ,you will have it running sweetly I'm certain.

@SeasideGarage

3 ай бұрын

Yea the analyzer can not (yet) be trusted. :)

@dj_paultuk7052

3 ай бұрын

Yes thats right, SU and Zenith type carbs would wear the needle on one side. Meaning more fuel going in. Getting rebuild kits could be tricky now though.

great video- thank you

lovely old car.

Love these video and you choice of cars.i love these to

I don't know if this engine has a visco coupling for the fan but on other redblock Volvo's (360/240/740/940) they sometimes fail and then the fan is driven 100% all of the time and that takes power so that would raise fuel consumption. Nice 244!

Fun with the Sun. Cool.

very good video! you got a very cool machine that can check all kind of things on an old car =)

10 degrees BTDC havent heard that language in a long time. fluctuations may be centrifugal vacuum advance weights and springs, or flux capacitor

Id love to have a grille and headlight setup like that if you find one available!

@Mad_Skill_Garage

3 ай бұрын

I’m the owner of this magnificent car, and yes it’s a cool combo of lights and grill. I purchased the car at the verge of the crusher. It had had a front end collision, so I had to find the lights and grill, which wasn’t that easy. As far as I know, it’s at 2 year only production run from 1979 to 1980. 😊 I was lucky and found brand new old stock lights at a parts breaker in the other end of the country… luckily Denmark is a small country. Great videos you make on your exceptional Volvo finds! I would like to swap my car for your, 242 turbo!😃

@DeanofMachines

3 ай бұрын

@@Mad_Skill_Garage Hey that's not a bad trade in my opinion! Thanks for the love! Cheers!

@Mad_Skill_Garage

3 ай бұрын

@@DeanofMachines if only America was a little easier to drive to, it would be an awesome roadtrip and an awesome trade! 😃

@TLLAUTOPARTS

3 ай бұрын

Funny seeing you here! What a diagnostic machine aye?

Godt gået!!

That sounds a lot better

@SeasideGarage

3 ай бұрын

It sure does! not perfect, but way calmer

Even without calibration the peak CO2 method can be used for adjustment. It does also look like the readings are accurate enough to use, better than not adjusting. In your first test there was excessive HC (unburnt fuel) which was fixed when you retested due to the timing.

@SeasideGarage

3 ай бұрын

I have been cleaning the machine, filter and so on.. and I have a feeling that its actually pretty close to being accurate... Seems like very valid numbers.. Will check it soon.. :)

I think you're the only person in the world who uses kilometres per litre. 😁 Would you consider l/100 km or even mpg? That Volvo is a thing of absolute beauty.

@SeasideGarage

3 ай бұрын

Haha its the only thing we use in DK... I have a hard time with the other ways.. :P

@jochenstacker7448

3 ай бұрын

@@SeasideGarage well, if I got used to mpg (and that there's *two* kinds of gallon), I'll get used to this. 😁🖖

They say timing is everything, whether in an engine or on stage, if it's off, you feel it... :P

If its on the Stromberg its worth checking the dashpot is correctly oiled, I heard some whiffling and hunting going on there which is either the vacuum system has a leak to atmosphere or the oil in the dashpot depleted or too thin an oil allowing the dashpot to hunt up and down from the drawpast of the intake. BTW where did you get that jumper from, I love the British military jumpers but never seen one with a high collar and sleeve pockets like that, just been searching the internet but no hits lol

@SeasideGarage

3 ай бұрын

Your right the daspot oil is to blame I believe. :) The jumper is danish military, I think its the marine defence or something..

What engine is under the hood? I have b200 with 175cdus stromberg/pierburg..I hear only fan,engine not so much

A good improvement for sure, sounds like there might be a weaker spark perhaps on one cylinder. Is the distributor cap etc ok?

@SeasideGarage

3 ай бұрын

hmm could be!

Can we name the diagnostic machine Mithras?

How is that MCS 2000 still actually running after all this time? We bought a new one at a garage I worked for in the 80's, it was an utter piece of shit from day one and after 2 years it was left abandoned due to being too annoying.

Impressive that it did not “ping” under load! Maybe the timing was adjusted to run on premium petrol only?

@SeasideGarage

3 ай бұрын

yea... Its a slow cruise... It might have done it at WOT ?

@MrToxicSkittle

3 ай бұрын

@@SeasideGarage maybe! I was taught by an old mechanic to adjust the ignition timing by driving up a steep hill at full throttle or pulling the handbrake while driving on a flat road and applying full throttle. Advance the timing until it starts pinging under full load, and then back it off a few degrees :)

@SeasideGarage

3 ай бұрын

@@MrToxicSkittle yes thats to cool way to do it... I dont dare to do that on cars that are not mine! :P

You may have mentioned this previously, but i assume you have an exhaust extraction system in your garage?

@SeasideGarage

3 ай бұрын

Pretty sure I would be gone if not... :P Yes... extractor with active suction and CO alarm.

After the timing was adjusted it looked like the sun machine said CO2 was at 14%!?! If so that would point to a very rich mixture setting on the carb and that would also contribute to poor fuel economy. In the UK a vehicle of this ages needs to be under 4.5% CO2 to pass its inspection

@SeasideGarage

3 ай бұрын

14 is fine... could you be referring to CO? a CO at 14% would be pretty rich....

Do you have a carbon monoxide meter/alarm in your garage? It's very important to have if you run combustion engines inside.

@SeasideGarage

3 ай бұрын

Of course... and active extraction on the exhaust..

@WCKD.

3 ай бұрын

@@SeasideGarage I just wanted to check. Yes, I know you have a exhaust gas extractor, but it may not work 100%. CO is a silent killer 😬 It's not a long ago when two women died here in Finland for CO poisoning inside their food trailer.

@SeasideGarage

3 ай бұрын

@@WCKD. Yea... I have alarm for that... It's scary stuff