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List of Non-Interference cars and engines, gauges #2472974 12/26/11 08:19 AM
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45ACP Offline OP
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Just read about a Non-Interference engine, and how it can survive a timing belt snap vs an Interference engine, which most are, and cant.

Can anyone name all the Non-Interference cars/engines they can think of? I rather like that benefit.

Also, for a separate list, can anyone name all the cars and cars/trucks/engines that come with a factory Oil pressure gauge, instead of having to figure out weird ways to go add one and ask the shop what they want to do? Thanks!

Re: List of Non-Interference cars and engines, gauges [Re: 45ACP] #2472980 12/26/11 08:34 AM
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bullwinkle Offline
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Gates' website and catalog used to have a list, that's where I would look. Many, if not most, vehicles with an oil pressure gauge aren't very accurate anyway.


06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 18 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)
Re: List of Non-Interference cars and engines, gauges [Re: 45ACP] #2472986 12/26/11 08:44 AM
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Generally, any modern engine will be an interference engine. The interference is the result of higher compression, longer valve travel, and more valve overlap...all of which lead to better combustion, efficiency and MPG....


32 Packard 15W40
01 Volvo V70 T5 0W30 AMSOIL SS
02 Volvo V70 T5 0W30 Edge
02 Volvo V70 XC 0W40 Edge
05 MB S600 0W40 M1
16 Tundra 1794 5W30 Pennzoil Ultra
Re: List of Non-Interference cars and engines, gauges [Re: bullwinkle] #2472993 12/26/11 08:56 AM
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JTK Offline
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+1 on the Gates look-up chart. The last non-crasher belt drives I know of were Ford Ranger 2.2/2.5's. There's not many non-interference engines built in the last decade.

I couldn't tell you the last time I saw an oil pressure gauge stock in a car. Trucks/SUVs, yes.

Joel


2017 Ram 1500 4x4, 3.6L.
2016 Nissan Quest SV (Babe magnet IV)
2015 Nissan Versa 1.6 S
Re: List of Non-Interference cars and engines, gauges [Re: 45ACP] #2472995 12/26/11 08:57 AM
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I'll agree with factory OP gauges being pretty useless, other than to point out major issues. At hot idle, my actual pressure is in the low 20s, gauge reads 30. Revved up hot, or just off-idle on a cold start, it has about 60psi, but the gauge never goes over 45. I've seen other Jeeps with 4.0s where the gauges seem a bit more accurate (will move up to 55 - 60), but I've never checked one of those against a mech gauge.


1998 Jeep Grand Cherokee 5.9 Limited with lots of mods (225k miles, bought with 100k in 1/2010)
Rotella T6 @ 6k OCI
Re: List of Non-Interference cars and engines, gauges [Re: rslifkin] #2472999 12/26/11 09:01 AM
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CLeming Offline
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Here is the link to the Gates interference engine chart and recommended change interval in pdf format.

http://www.gates.com/common/downloads/files/Gates/TimingBeltReplacementGuide.pdf

Re: List of Non-Interference cars and engines, gauges [Re: 45ACP] #2473000 12/26/11 09:02 AM
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2016 Lexus NX200T 2017 Mustang Conv Eco Prem
Re: List of Non-Interference cars and engines, gauges [Re: rslifkin] #2473002 12/26/11 09:02 AM
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45ACP Offline OP
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Originally Posted By: rslifkin
I'll agree with factory OP gauges being pretty useless, other than to point out major issues. At hot idle, my actual pressure is in the low 20s, gauge reads 30. Revved up hot, or just off-idle on a cold start, it has about 60psi, but the gauge never goes over 45. I've seen other Jeeps with 4.0s where the gauges seem a bit more accurate (will move up to 55 - 60), but I've never checked one of those against a mech gauge.


Appreciated. But if you put in a thinner oil like a 5W-20 to see what it would do, would the gauge change?

Or would you never do that... kicking around ideas here.

Re: List of Non-Interference cars and engines, gauges [Re: 45ACP] #2473015 12/26/11 09:23 AM
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bullwinkle Offline
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The only factory OP gauge that I've seen make sense is the one in my '93 GMC, it actually registers the bypass pressure of 60-ish PSI with cold dino SAE 30, then will drop to 20-25 PSI at a hot idle. The others, especially all the Ford ones, just show some random meaningless level between L and H that never seems to change when the engine is running-might as well be an idiot light!


06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 18 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)
Re: List of Non-Interference cars and engines, gauges [Re: 45ACP] #2473027 12/26/11 09:40 AM
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Some vehicles, like my 2007 Frontier, have an oil pressure gauge in the dash but it is just another version of an idiot light. As long as the pressure is within some predetermined value range, the needle stays right in the middle of the gauge. Apparently, from what I have read, Nissan did this after getting complaints that the pressure was changing during engine warmup, etc. Just shows that many are not able to understand the simple dynamics of engine performance.


2019 VW Passat 2.0 liter gasoline DI engine, DI, 1,100 miles, Castrol Professional VW 508 0W-20
2017 VW Golf All Track 1.8 liter gas engine DI, 24,500 miles Castrol Professional VW 505 5W-40
Re: List of Non-Interference cars and engines, gauges [Re: 45ACP] #2473040 12/26/11 09:52 AM
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Im thinking of a 2002-2006 or possibly 2007 "Classic appearnce" GMC Yukon XL Denali with either the 6.0 or 6.2L engine, and im wondering how the pressure gauge is on that. Or, a 2007 6.2L New one.. and the OP gauge on it.

I have seen some people with 2002 Tahoes and their oil pressure gauge "Failed High." 120PSI!!

Re: List of Non-Interference cars and engines, gauges [Re: 45ACP] #2473054 12/26/11 10:04 AM
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Toyota 2JZGE is non interference if it doesn't have vvti
Toyota 1MZFE same. Those I know so sure.
45ACP, check Beast Camry thread, I answered you questions.

Re: List of Non-Interference cars and engines, gauges [Re: 45ACP] #2473077 12/26/11 10:39 AM
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My MBs all have factory gauges, they just peg out after they reach a certain pressure, but that's ok with me.

Re: List of Non-Interference cars and engines, gauges [Re: 45ACP] #2473169 12/26/11 12:49 PM
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Donald Offline
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I will go one step further for the timing belt. If it has a belt I will pass. I want a chain.

But seeing the engine listed as a non-interference engine should not change the maint. schedule for the timing belt.

I think dash oil pressure gauges are MUCH better than an idiot light, but not as good as a mechanical gauge. Just assume they are +/- 10 lbs. That should be accurate enough for most people. You have a street car, not a race car.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: List of Non-Interference cars and engines, gauges [Re: 45ACP] #2473177 12/26/11 12:55 PM
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My take is belt come first, then chain would be my second choice.

(*BTW: I get to inspect/service all seals, idler tensioner bearings, water pumps, etc. whenever I perform a belt change, not so much on the chain tensioner guide for chain type*)

Q.


"Internet discussion boards act as echo chambers for conspiracy dittoheads" A.Allen
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