OOPS

Gecko

Gecko

Well-known member
The 206 had a 4 cylinder Deutz, the 212 had a 5 cylinder. Night and day regarding smoothness.
Inline 4's and 6's balance perfectly on the primary balance, but 5's are naturally unbalanced on both the primary and secondary giving them an inherent rocking couple that is normally solved with counter-rotating balance shaft/s. Once you add balance shafts, you can fix a lot of problems.
One significant advantage of "greater than 4" cylinders it the overlap of the power stroke giving a smoother power delivery.

 
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Lancs Lad

Lancs Lad

Well-known member
So last Friday place next door to us shut shop due to powercut and sent lads home early..
Monday morning there's a 500KVA Genny hooked up...they make plastic conservatory stuff.
Turns out their supply cable is buggered but...someone built a coldstore on top of it...😭
So had contractor and ENWL in today can we block your driveway? why...we've got to run a complete new feed from different substation...when you starting ? This afternoon... 20k and counting 🤑😳
 
Bri963

Bri963

Well-known member
Inline 4's and 6's balance perfectly on the primary balance, but 5's are naturally unbalanced on both the primary and secondary giving them an inherent rocking couple that is normally solved with counter-rotating balance shaft/s. Once you add balance shafts, you can fix a lot of problems.
One significant advantage of "greater than 4" cylinders it the overlap of the power stroke giving a smoother power delivery.
Not quite right, Gecko. 4’s are unbalanced in the reciprocating plane, and the normal way of countering is with balance mass forged into the crankshaft, a heavy flywheel, a balance shaft (some of the older Cat 4’s), or in Perkins 1000 & Darwin’s, a combined oil pump and twin balance weights. In the reciprocating plane 5’s have perfect balance and rotational imbalance in the rotational plane is taken out by the overlap in the power stroke.
 
Bri963

Bri963

Well-known member
C2B07782-064C-410B-B557-677C541667FB.jpeg
Not staged or set up, someone at work genuinely thought this was fitted correctly. I fear for the future.
 
Left hooker

Left hooker

Well-known member
Inline 4's and 6's balance perfectly on the primary balance, but 5's are naturally unbalanced on both the primary and secondary giving them an inherent rocking couple that is normally solved with counter-rotating balance shaft/s. Once you add balance shafts, you can fix a lot of problems.
One significant advantage of "greater than 4" cylinders it the overlap of the power stroke giving a smoother power delivery.

Wasn't that Volvo's sales pitch with a 50p on edge on the top of the engine showing how quiet and balanced the 5 pot was 🤔
 
Gecko

Gecko

Well-known member
Not quite right, Gecko. 4’s are unbalanced in the reciprocating plane, and the normal way of countering is with balance mass forged into the crankshaft, a heavy flywheel, a balance shaft (some of the older Cat 4’s), or in Perkins 1000 & Darwin’s, a combined oil pump and twin balance weights. In the reciprocating plane 5’s have perfect balance and rotational imbalance in the rotational plane is taken out by the overlap in the power stroke.
I'll get back to on that - I'll need to dig out a text book
 
V8Druid

V8Druid

do it as well as you can,but learn to do it better
Audi's 5 pot petrol was turbine smooth .. a lovely engine to drive and go :)
 
S

Smiffy

Well-known member
so they've not done their abrasive wheels course then Bri ??:unsure: if they have, WTF are they doing with a grinder in their hand ? :oops::oops:

Could be that they have done abrasive wheels and been told sticker out. Like it is with cutting disks. And blindly followed the rules without thinking
 
V8Druid

V8Druid

do it as well as you can,but learn to do it better
Could be that they have done abrasive wheels and been told sticker out. Like it is with cutting disks. And blindly followed the rules without thinking
so the course didn't have much effect then ... DPCs are that shape for a reason :rolleyes:
 
Bri963

Bri963

Well-known member
so they've not done their abrasive wheels course then Bri ??:unsure: if they have, WTF are they doing with a grinder in their hand ? :oops::oops:
I think I mentioned one genius we employed that passed his forklift course at 12 and at 1 the same day parked a forklift across a walkway with the forks a foot in the air. Some people just will not engage with what they’re told.
 
S

Smiffy

Well-known member
I think I mentioned one genius we employed that passed his forklift course at 12 and at 1 the same day parked a forklift across a walkway with the forks a foot in the air. Some people just will not engage with what they’re told.

I worked with a bloke that would park the telehadler or tractor loader with the forks or bale spikes at head height outside the workshop pedestrian door every day. He was impossible to deal with
 
V8Druid

V8Druid

do it as well as you can,but learn to do it better
I worked with a bloke that would park the telehadler or tractor loader with the forks or bale spikes at head height outside the workshop pedestrian door every day. He was impossible to deal with
had an engine hanging off a sling on a fork once, steaming it off ... said to the mate with me "FFS watch that fork tip" ... had barely said it to him, before i could chuck a rag over it and he walked into it .. damned near scalped himself ... sharp fork tips for splitting packs of sheets/plates:oops:
 
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