Common Problems with a 92 302?
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Elder User
Joined: Aug 2004
Posts: 646
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From: Derbyshire, UK.
Common Problems with a 92 302?
Hi,
I'm from a Rover V8 background and don't know the American V8s as well (yes I know the Rover was a Buick, bust aside from that).
With the Rover V8s they had a few areas that wore before others and I'd like to compare that with a Ford 302. For example the Cam & Lifters wore before the bore and bearings.
I have a 92 Bronco FS imported from CA with about 148k miles on it. What wears out first on these motors assuming that have had an average lifestyle?
I know this is a bit of an open ended question but i'd like to hear what the engine builders out there have to say on the matter.
Thanks
Simon
I'm from a Rover V8 background and don't know the American V8s as well (yes I know the Rover was a Buick, bust aside from that).
With the Rover V8s they had a few areas that wore before others and I'd like to compare that with a Ford 302. For example the Cam & Lifters wore before the bore and bearings.
I have a 92 Bronco FS imported from CA with about 148k miles on it. What wears out first on these motors assuming that have had an average lifestyle?
I know this is a bit of an open ended question but i'd like to hear what the engine builders out there have to say on the matter.
Thanks
Simon
Post Fiend
Joined: Nov 2001
Posts: 14,947
Likes: 6
From: Topsfield, MA
If the engine is properly maintained/operated...you'll see loss of compression and loss of oil pressure while idling as sure signs of an old/worn engine. The rings loose their seal to the cylinder walls, and your burn oil too. The bearings in the engine wear out, and cause you to loose oil pressure at certain times...that's when you know it's time for a rebuild.
The 302 is a well designed internal combustion engine...you just end up wearing it out...it's easy to see coming which gives you enough time to get ready for it.
The smart ones will rebuild it before anything serious is damaged. If a person has intentions of rebuilding vs replacing, it should be rebuilt before it's on it's last leg. If no cylinder damage is done, you can just hone the cylinder vs bore it, and put new rings in to restore compression. Replace all the bearings and have the crank re-done, replace the timing chain and oil pump etc, should be good to go after that type of build.
The 302 is a well designed internal combustion engine...you just end up wearing it out...it's easy to see coming which gives you enough time to get ready for it.
The smart ones will rebuild it before anything serious is damaged. If a person has intentions of rebuilding vs replacing, it should be rebuilt before it's on it's last leg. If no cylinder damage is done, you can just hone the cylinder vs bore it, and put new rings in to restore compression. Replace all the bearings and have the crank re-done, replace the timing chain and oil pump etc, should be good to go after that type of build.
Senior User
Joined: Apr 2005
Posts: 392
Likes: 0
From: NC
I have an 85 bronco 302EFI with 450,000 miles hasent been rebuilt yet, day is comming soon, all ive done so far is change the oil every 1500 miles. it suffering from low oil pressure less then 10 ildeing and about 20 at highway speed, loud rod nock when its hot leaks oil like a sive(case a month) other than changing the timeing chain 3 times the engine has never been torn open. i beat the crap out of it and it has not let me down yet
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