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Compression testers?????

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Old Sep 7, 2020 | 09:35 AM
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Default Compression testers?????

I'm guessing someone borrowed my tester I had for years and never returned it or it's lost somewhere.
Can you gents recommend a good tester (not Snap-on$) that you got recently. I was on Amazon and there must be 25 different ones! Sheesh, way too many choices.
Thanks ahead of time.
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Old Sep 7, 2020 | 11:14 AM
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Originally Posted by Kerrmudgeon
I'm guessing someone borrowed my tester I had for years and never returned it or it's lost somewhere.
Can you gents recommend a good tester (not Snap-on$) that you got recently. I was on Amazon and there must be 25 different ones! Sheesh, way too many choices.
Thanks ahead of time.


If there on Amazon, 24 of the choices will be made in China. Numerous things I almost bought on Amazon and changed my mind when the fine print said " made in China" had to dig deep to find " Made in the USA". Amazon sells a lot " made in China Junk"

Last edited by CorvetteMikeB; Sep 7, 2020 at 12:37 PM.
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Old Sep 7, 2020 | 12:12 PM
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Originally Posted by Kerrmudgeon
I'm guessing someone borrowed my tester I had for years and never returned it or it's lost somewhere.
Can you gents recommend a good tester (not Snap-on$) that you got recently. I was on Amazon and there must be 25 different ones! Sheesh, way too many choices.
Thanks ahead of time.
I have a Matco. I think it is equal to what snapon offers. MAC is also a good pick.
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Old Sep 7, 2020 | 08:31 PM
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Well i was going to say I'm happy with the Innova one I bought a couple months ago. Can't honestly remember whether I bought it from FLAPS or Amazon or where. But I just looked and it was made in Taiwan.
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Old Sep 7, 2020 | 09:13 PM
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Originally Posted by Railroadman
Well i was going to say I'm happy with the Innova one I bought a couple months ago. Can't honestly remember whether I bought it from FLAPS or Amazon or where. But I just looked and it was made in Taiwan.
Thanks, I'll check into that one. Tawain is better than mainland China.
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Old Sep 7, 2020 | 11:11 PM
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I would be more concerned how it would hold 100+# of compression
Your choice where it was made
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Old Sep 8, 2020 | 06:15 AM
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Search craigslist or facebook marketplace.
Here's an example in MI.
https://www.facebook.com/marketplace...58967721223429
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Old Sep 8, 2020 | 06:37 AM
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I wouldnt buy one without a calibration certificate. Results would alway be a question mark.
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Old Sep 8, 2020 | 06:56 AM
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Originally Posted by skids
Search craigslist or facebook marketplace.
Here's an example in MI.
https://www.facebook.com/marketplace...58967721223429
OP is looking for a compression tester. The FB Marketplace unit appears to be a vacuum/pressure guage.

Last edited by After38Years; Sep 8, 2020 at 06:57 AM.
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Old Sep 8, 2020 | 08:41 AM
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Maybe consider a leakdown tester? More expensive but will give you a lot more information.
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Old Sep 8, 2020 | 09:51 AM
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As a weekend warrior I try to balance cost versus quality on tools. I have a HF leak down tester which is fine for my very infrequent use. Last time I used it was on a small engine. If I was a pro I'd make different decisions.
I interact with professional dealer techs and you would be surprised that some do use the value brand stuff. One said it hurts a lot less to lose a Pittsburg socket than a $40 Snap On one.


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Old Sep 8, 2020 | 11:38 AM
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Originally Posted by Kerrmudgeon
Thanks, I'll check into that one. Tawain is better than mainland China.
That's true, Taiwan products are usually better than mainland China. I try to go with American made if at all possible but when their unavailable, Taiwan products are better made. Just from what I've seen.
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Old Sep 8, 2020 | 07:12 PM
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Originally Posted by After38Years
OP is looking for a compression tester. The FB Marketplace unit appears to be a vacuum/pressure guage.
Oh yeah. oops
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Old Sep 9, 2020 | 06:05 AM
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For short term use I would borrow one from an auto parts store. Most rental business will rent them out also.

I believe mine is an Actron (from Summit racing) but I'd have to go to the garage and look. I questioned it when I last used it and took it to work where I could verify it with calibrated test equipment and it was okay. I think the cost of having it certified at a calibration shop would be more than what Summit charges for a new gauge.

Never buy anything that needs accuracy from Harbor Freight - never. I've got burned by HF torque wrenches and fuel pressure gauges. I won't touch a HF tool that needs to be accurate.
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Old Sep 9, 2020 | 07:49 AM
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Originally Posted by cardo0
Never buy anything that needs accuracy from Harbor Freight - never. I've got burned by HF torque wrenches and fuel pressure gauges. I won't touch a HF tool that needs to be accurate.
Oh come on. Their prices are so low you can buy 3 for the price of one high-dollar gauge. At least ONE of those three will display the reading you seek!
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Old Sep 9, 2020 | 08:21 AM
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I've been using Bosch tools: compression tester and their leakdown tester.
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Old Nov 3, 2020 | 05:29 PM
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Default Compression Tester

I'm interested in one that I can use on the tight quarters of a SB Midyear engine ... especially by the battery box where I can barely get a plug in/out. I tried a Harbor Freight one and no way it will work with it's heavy tube with no flex to get between battery box and plug hole. John
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Old Nov 3, 2020 | 06:02 PM
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Originally Posted by JohnFromVentura
I'm interested in one that I can use on the tight quarters of a SB Midyear engine ... especially by the battery box where I can barely get a plug in/out. I tried a Harbor Freight one and no way it will work with it's heavy tube with no flex to get between battery box and plug hole. John
Engineering designs vehicles as if they will never need to be worked on. It's been going on for at last 55 years.
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Old Nov 3, 2020 | 08:07 PM
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How about tight header tubes, barely enough room to get a wrench on the plug
let alone a compression "hose" into the hole!
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Old Nov 3, 2020 | 09:24 PM
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This must be a common problem on Midyears! Hoping to find something about 4" long that screws into the plug hole and has some kind of disconnect or even 90*? John
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