![]() |
|
|
|
|
#1
|
|||
|
|||
Can someone teach me about oscilloscopes?
I see them advertized used for next to nothing and i Know that they can be used to diagnose ignition problems. Do these scopes need to be set up for automotive use or can any scope work?
How do you use them? With best regards
__________________
With best regards Al |
#2
|
||||
|
||||
Easy! You blow the resistor to ground and it quits working. Happens every time.
|
#3
|
||||
|
||||
If you want to look at the actual high voltage output I'd think you would need a special scope... or at least a special probe.
I've used mine when working on the car... very handy! ![]() -J
__________________
1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket ![]() Tesla Model 3. 205,000 miles. Been to 48 states! Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels. 2014 Cadillac ELR 2013 Fiat 500E. |
#4
|
|||
|
|||
Al.....
Today is 23-Apr-2012. If you visit a site called shopgoodwill.com - Welcome and search for Heath you will find that they are offering an old Heathkit ignition analyzer. This is a scope that is built for car ignitions and it will really tell you where your problems are. This is an auction site and you don't really know if the thing works, but you can sometimes pick up some really good stuff there cheap. Good Luck! |
#5
|
|||
|
|||
Quote:
__________________
Kitchen Cabinetry |
#6
|
||||
|
||||
Then replace the RC circuit to ground. If it's used, it's blown.
|
#7
|
||||
|
||||
How do they work on my diesels?
__________________
1982 300SD " Wotan" ..On the road as of Jan 8, 2007 with Historic Tags ![]() |
#8
|
||||
|
||||
Flawlessly. Even the broken ones.
|
#9
|
||||
|
||||
They would give about the same indications, wouldn't they.
__________________
1982 300SD " Wotan" ..On the road as of Jan 8, 2007 with Historic Tags ![]() |
#10
|
||||
|
||||
Uh-huh. Neat thing about a single-point. Everything gets the same answer. Not unlike political party fanatics.
|
#11
|
|||
|
|||
An oscilloscope with a high enough frequency might be able to track Gov. Romney's changes in position about political issues.
|
#12
|
|||
|
|||
Thanks I'll take a look! I don't think that they work on diesel as they are used to diagnose ignition problems. But that said, I could be completely wrong.
__________________
With best regards Al |
#13
|
|||
|
|||
Quote:
1. Check the injection timing signal on an OM603. This would probably take more work than it is worth, particularly to get the required TDC reference, but theoretically ... 2. Check voltage waveform to tell you if the rectifier bridge has one or more 'open' diodes, giving weak performance without shorting out the battery. 3. Using a long, slow trace, and with enough screen persistence, you could check the duty cycle of the heater's monovalve. I'm just sayin'. It can also make a cool workbench display ![]() |
#14
|
||||
|
||||
I've used them when doing fine grinding of inside diameters on jig grinders. It shows when the wheel is cutting or not.
I've never used one on a car...
__________________
![]() 85,000 miles Meet on the level, leave on the square. Great words to live by Were we directed from Washington when to sow and when to reap, we should soon want bread. - Thomas Jefferson: Autobiography, 1821.
|
#15
|
||||
|
||||
You can also use it to check ABS sensors. That's what I was doing in the picture I posted. Made an annoying job easy.
![]() vs. ![]()
__________________
1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket ![]() Tesla Model 3. 205,000 miles. Been to 48 states! Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels. 2014 Cadillac ELR 2013 Fiat 500E. |
![]() |
Bookmarks |
|
|