a couple questions for 88yj (pinging and lift) - JeepForum.com
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post #1 of 3 Old 07-23-2013, 04:14 PM Thread Starter
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1988 YJ Wrangler 
Join Date: Jul 2013
Location: kamloops
Posts: 4
Ok so as i have bought an 88 yj recently i have come across a couple issues the first being that, after 8mo of storage before i bought it, the rms (rear main seal) pooched on me and puked a bunch of oil all over the place... Fixed. No more oil leak other than the small valve cover leak that is getting fixed today.
Now onto my next question. I have some pinging under load after about 1/4 to 1/2 throttle continuing to full throttle and was just wondering what the most likely causes of this might be. I have gone through the timing range and at a setting of 0 deg i have an awefully crappy lack of power. But at about 5 or 6 deg of advance the power comes back. The pinging is a constant throughout the whole range. My thoughts are the timing chain has slipped a tooth, or it just has carbon buildup somethin fierce?? But i am open to other thoughts.
Now for another question. I am looking at putting a lift in my yj and most likely running 33" tires. So with this in mind what would the best setup be?? Right now suspension is stock with a 3" body lift :-( (i really dislike body lift) One other question is with 33" tires am i going to be losing a ton of power??

Last edited by dlebo; 07-24-2013 at 06:45 PM.
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post #2 of 3 Old 07-29-2013, 03:41 PM
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1990 YJ Wrangler 
Join Date: Nov 2009
Location: The southern armpit of California
Posts: 2,098
Maybe wrong heat range plugs, carbon buildup, bad distributor, worn timing chain, or faulty/misadjusted vacuum advance. Just what I can think of.
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post #3 of 3 Old 07-29-2013, 04:05 PM Thread Starter
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1988 YJ Wrangler 
Join Date: Jul 2013
Location: kamloops
Posts: 4
Yeah i think my vaccuum advance is pooched springs might be fried.
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