Re: 1984 S10, an ongoing evolution
TY0618, definitely let me know when/where. I would love to come out and meet some of you guys.
Progress has been more mental then physical on the new build. I've got some goals set for this summer, and spring is just around the corner so hopefully work will resume soon.
I got heavily sidetracked this winter and got the "I need a new daily" bug and sold my 2000 blazer and bought an '82 C20
Southern truck, dana 60, 14 bolt, detroit full case lockers, cummins 12 valve, and some other stuff
I got boned on the truck big time. The seller advertised it as a fresh rebuild, and I could see some work had been done but I came to quickly find out it was a lemon. The 12 valves was freshened up by a hack to say the least. By the time I got it home the motor needed a complete rebuild. Head gasket was blown, causing the rad to overpressure and empty itself in about 50 km's. Also the rings were fried from being severely overheated many times, it burned about 6 quarts of oil every 150 miles.
Some pics of the rebuild,
cut the block 12 thou
where the head-gasket blew,
some "fresh" bearings
head gasket was also blown between 4 of the 6 cylinders,
resurfaced exhaust manifold,
when we started rebuilding the head we quickly realized a new head was in order, it was cracked in 20+ places from being severely overheated
block was lined honed,
crank and cam polished, talk about some rotating inertia,
new bearings and head bolts,
new rings, pistons were cut 5" thou to achieve cummins piston protrusion spec, believe it was 35" thou,
shortblock together,
new head,
genuine cummins head, comes with the mill shavings and all....
disassembled and resurfaced,
after casting they usually machine it right away and as it ages they will sometimes potato chip a little bit. This one was only about 3-4 thou but the fellow helping me with the rebuild said it would only take about 15 mins to resurface and that we might as well,
he also reground the valve seats as he didn't think they were all that great from the factory,
back together and ready to drop in,
back in and running, sounded a hell of a lot better then,
After sorting out some other issues the truck had, I realized I just really didn't like it. After getting screwed over and spending a lot more money & time on it then I had ever planned I just had no desire to work on it or even drive it. So I put it up for sale.
Ended up trading it for an '04 Colorado Crew Z71 4WD. I couldn't be happier with the trade.
had to do a few small things, rear axle seals, alignment, replace a tire and a light bulb here and there but overall it's a real solid daily.
the previous owner had cut off the muffler and had a single resonator that dumped under the bed, way to much drone for a daily. Put on a walked quiet flow,
The BFG Mud terrains are incredible tires in the deep snow but they definitely have a bit more road noise then I liked. So the first thing I did was place an order with SecondSkin and started sound deadening the interior. 37 sq ft of damplifier pro and 100 sq ft of Luxury Liner pro,
stripped the interior,
got about 50%-75% coverage with the damplifier pro,
about 80% coverage on the doors with DP and nearly 100% with the LLP
100% on the roof,
100% on the floor and then a second layer of about 50% (had 2 sheets left-over)
back wall,
did almost all of the panels as well,
I took some dB readings before and after. When I replaced the muffler these were the readings,
Idle
85 db before
78 db after
50km/h
89 before
82 after
80 km/h
92 before
90 after
120 km/h
95 before
94 after
After replacing the muffler and doing the sound deadening I took before and afters as well.
Idle
78 db before
62 db after
50km/h
82 before
76 after
80 km/h
90 before
83 after
120 km/h
94 before
87 after
I was very pleased to get a 23 dB drop at idle by doing the muffler and deadening. It made a huge difference in ride quality. I've got a few things left to do that may drop a few more dB. If I ever get rid of the mud terrains in favour of something geared towards highway driving I can almost guarantee it would be in the mid 70 dBs at 120. Just ordered 4 Infinity kappa 6.5's and a Infinity four amp.
Anyway, that's what I've been up to. Looking forward to getting back to work on the '84 and hitting the track again this summer.