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 Any Tips on Buying a Diagnostic Tach for 22RE?
#796180
03/12/07 12:18 AM
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Joined: Jan 2002
Posts: 1,617
OP
Body Damage is Cool
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I need to buy a tachometer for working on the 22RE. Anything special to look out for? Do the old kind that came with a dwell meter tend to work with the 22RE? -- Matt
'89 4runner SR5, 3.0, auto (fun)
'93 xtra cab, dlx,3.0, 5spd (work truck)
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Re: Any Tips on Buying a Diagnostic Tach for 22RE?
[Re: matts]
#796181
03/12/07 02:05 AM
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Joined: Oct 2000
Posts: 669
Rock Warrior
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There isn't any way you can set the dwell with a 22RE. It doesn't have points.
For a tach, I'd assume you could go old school on it - any diagnostic tach that senses voltage upon grounding the coil will work.
22REturbo.net 1988 4Runner 22RTE core, turbocharged, megasquirted...
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Re: Any Tips on Buying a Diagnostic Tach for 22RE?
[Re: dcg9381]
#796182
03/12/07 02:19 AM
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Joined: Jan 2002
Posts: 1,617
OP
Body Damage is Cool
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Thanks. I knew that about the dwell and no points in the 22RE. <img src="/forums/images/graemlins/drunk.gif" alt="" /> Most of the used tachometers I see for sale have a dwell meter and tach combined. I just need the tach function and I don't want to buy a Snapon/Bluepoint meter for $250. If an old school tach will do the job I may get what I need for much less (like $10) <img src="/forums/images/graemlins/lol.gif" alt="" /> . -- Matt
'89 4runner SR5, 3.0, auto (fun)
'93 xtra cab, dlx,3.0, 5spd (work truck)
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Re: Any Tips on Buying a Diagnostic Tach for 22RE?
[Re: matts]
#796183
03/16/07 09:31 AM
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Joined: Jul 2006
Posts: 139
Wheeler
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Yeah, I actually just use my DVOM. Works great!
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Re: Any Tips on Buying a Diagnostic Tach for 22RE?
[Re: VanillaTHUNDA]
#796184
03/16/07 04:40 PM
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Joined: Jan 2002
Posts: 1,617
OP
Body Damage is Cool
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Yeah, I actually just use my DVOM. Works great! You'll need to expand on that a little. I'm going to guess that 'DVOM" means digital volt ohm meter. Is that right and how does it work? -- Matt
'89 4runner SR5, 3.0, auto (fun)
'93 xtra cab, dlx,3.0, 5spd (work truck)
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Re: Any Tips on Buying a Diagnostic Tach for 22RE?
[Re: matts]
#796185
03/16/07 04:47 PM
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Joined: Jan 2000
Posts: 12,153
Web Wheeler
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I have an old dwell/tech/ohm meter from Sears that still works fine. Has a big dial and a 0-1000 low RPM range and a 0-10000 high RPM range. Or now I recently replaced my old timing light with a new one w/ intergrated digital tach and timing advance display.
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Re: Any Tips on Buying a Diagnostic Tach for 22RE?
[Re: 4Crawler]
#796186
03/16/07 06:00 PM
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Joined: Jan 2002
Posts: 1,617
OP
Body Damage is Cool
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Exactly! I see tach/dwell combo's going for pennies on eBay. I'm waiting for an industrial quality unit at a bargain price. Something with a large meter and switches for 4/6/8 cylinders and high and low range rpm.
I've seen new tachs that have an inductive pickup. That should work with any engine that has sparkplug wires. The idea of a timing light with inductive pickup and a built-in tach makes good sense. -- Matt
'89 4runner SR5, 3.0, auto (fun)
'93 xtra cab, dlx,3.0, 5spd (work truck)
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Re: Any Tips on Buying a Diagnostic Tach for 22RE?
[Re: matts]
#796187
03/16/07 07:37 PM
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Joined: Jul 2006
Posts: 139
Wheeler
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You'll need to expand on that a little. I'm going to guess that 'DVOM" means digital volt ohm meter. Is that right and how does it work? -- Matt Yeah, that's what it stands for. Turn the dial on the DVOM to "4cyl" and attach the positive lead to the coil negative post, then ground the DVOM negative lead to a decent ground and BAM! You've got RPM. Works great for me.
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Re: Any Tips on Buying a Diagnostic Tach for 22RE?
[Re: VanillaTHUNDA]
#796188
03/17/07 12:04 AM
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Joined: Nov 2002
Posts: 152
Wheeler
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Yeah, that's what it stands for. Turn the dial on the DVOM to "4cyl" and attach the positive lead to the coil negative post, then ground the DVOM negative lead to a decent ground and BAM! You've got RPM. Works great for me. So I guess that implies that you need an automotive specific DVOM, like the Actron CP7677... I think Matt was asking (and I was wondering) if there was any way to use a generic DVOM as a tach....
1988 4Runner 22R-E W56
1989 4Runner 22R-E A340
1995.5 Rodeo 3.2L 5spd
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Re: Any Tips on Buying a Diagnostic Tach for 22RE?
[Re: toowacky]
#796189
03/17/07 04:26 AM
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Joined: Jan 2002
Posts: 1,617
OP
Body Damage is Cool
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So I guess that implies that you need an automotive specific DVOM, like the Actron CP7677... I think Matt was asking (and I was wondering) if there was any way to use a generic DVOM as a tach....
Exactly! -- Matt
'89 4runner SR5, 3.0, auto (fun)
'93 xtra cab, dlx,3.0, 5spd (work truck)
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