iLexusSC400 Posted January 15, 2008 Posted January 15, 2008 Im reading different things about the '92's non-vvti 4.0L V8 engine as to rather or not it is interference or non-interferences. I've read on here that as long as its not the vvti (96 and up) that its non-interference but went to my local lexus dealer and they said that it is for sure interference but the people on here sound more sure about it than he did, its just the fact that he said for sure that just keep me uneased about the right answer maybe someone else can tell me the truth about as i really need to know!
Air Force Rascal Posted January 15, 2008 Posted January 15, 2008 it is non as it has no vvt I ditto SK's answer..it is NOT a interference model..I think ONLY the 95-97 models were if my memory serves me right...good luck
Lextreme Posted January 16, 2008 Posted January 16, 2008 it is non as it has no vvt I ditto SK's answer..it is NOT a interference model..I think ONLY the 95-97 models were if my memory serves me right...good luck LS400 = 95 and up SC400 = 96 and up VVTi available from 1998 and on in both models.
iLexusSC400 Posted January 16, 2008 Author Posted January 16, 2008 Thanx y'all the guy at the dealership was just "o yea all of them are for sure."
JIBBBY Posted January 16, 2008 Posted January 16, 2008 92-94 SC400's and LS400's motors are the stoutest Lexus/Toyota motors made to date...In other words they are built stronger then all the newer V8 Lexus and Toyota motors which means they also may last the longest...... Hey, Dave (lextreme) what's up?...Didn't know you posted on this forum... I check in every now and then....
iLexusSC400 Posted January 16, 2008 Author Posted January 16, 2008 92-94 SC400's and LS400's motors are the stoutest Lexus/Toyota motors made to date...In other words they are built stronger then all the newer V8 Lexus and Toyota motors which means they also may last the longest...... Hey, Dave (lextreme) what's up?...Didn't know you posted on this forum...I check in every now and then.... So you argee that its non-interfering???
JIBBBY Posted January 16, 2008 Posted January 16, 2008 I really don't know the difference between a interferring motor and non...If it's when the VVti kicks in then it is 98.... What is interferring with the motor? Is it compression, or the VVti that makes a motor interferring as apposed to non... I am lost on that term and should know it...
iLexusSC400 Posted January 16, 2008 Author Posted January 16, 2008 interference means that if the timing belt snaps while you are driving it will ruin your valves and youll need an engine rebuild (long explination short) while non-interference means that when the timing belt snaps it just shuts the car off and once you get the timing belt fixed, everything is fine, nothing ruinned and no rebuild needed.
JIBBBY Posted January 18, 2008 Posted January 18, 2008 Well with that being said we sure don't want those timing belts to snap then on these earlier year Lexus/Toyota motors of ours....
iLexusSC400 Posted January 18, 2008 Author Posted January 18, 2008 Well with that being said we sure don't want those timing belts to snap then on these earlier year Lexus/Toyota motors of ours.... What do you mean? Do you know the answer? Everyone on here says the earlier v8's without VVT-i are non-interference (meaning that the car just shuts down and nothing internally messes up) but it the later model v8's with VVT-i that are interference (meaning if it snaps your screwed). Its the mechanic at the Lexus dealership that worried me as he said they defenitly are interference but he also really didnt give it any thought kind of like i could of asked about any toyota and he would of said the same for all of them. Please answer what you think or what you know!
JIBBBY Posted January 18, 2008 Posted January 18, 2008 I do not know the answer... I do know if my 92 SC4 timing belt snaps there will be damage...That is all I know.... I would like to know more about this...Like I said this is the one topic I cannot speak intellegently about...
schott1984 Posted January 19, 2008 Posted January 19, 2008 I do not know the answer... I do know if my 92 SC4 timing belt snaps there will be damage...That is all I know.... I would like to know more about this...Like I said this is the one topic I cannot speak intellegently about... I actually think you are wrong Jibby. Only because I asked the same question awhile back and more than one person said it was non-interference. It just means that there's enough clearance that the piston won't hit a valve in any scenario, given a normal valvetrain setup. This however, is based on other forum viewer's replies to me when I asked the same question, so they could be wrong too. Damage from the timing belt flying around loose after it breaks could happen in any case I do believe though.
schott1984 Posted January 19, 2008 Posted January 19, 2008 http://clublexus.com/forums/showthread.php...ht=interference http://clublexus.com/forums/showthread.php...ht=interference There ya go. Again, who knows, they could be wrong. And jibby, much respect, not trying to be a jerk.
JIBBBY Posted January 19, 2008 Posted January 19, 2008 Scott - thanks for the links...I am not all knowing by any means and am always willing to learn about something new... Those links tell the story...
schott1984 Posted January 19, 2008 Posted January 19, 2008 Lol, everyone on here calls me Scott! It's scHott! haha. As in "shot". It's my last name hehe. So yeah, my car is totally being neglected because I got a job downtown and never drive it anymore. It hates me, I just know it.
JIBBBY Posted January 19, 2008 Posted January 19, 2008 That's funny everyone calls me Jibbby and my name is John... I just don't understand it... :chairshot:
eds92sc Posted January 21, 2008 Posted January 21, 2008 My 92 SC400 timing belt just snapped on me while I was cruising at 70mph. No damage to the engine whatsoever. I did need a new idler pulley and tensioner though. Eng runs just like before the timing belt broke.
Toyofreak Posted January 21, 2008 Posted January 21, 2008 Does the 96 have a non-interferance engine also???
JIBBBY Posted January 23, 2008 Posted January 23, 2008 I ate alot of Broccoli, beans and garlic last night and there is definetely some interference going on in the air.... :cries: Thought I would share that with you folk..... So sorry.......
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