'95 Chevy K2500 Basic Mods?
Hello ,
having only driven jap pickups and landrovers i was pleasantly surprised to discover the power available in this old chevy.......
a recent purchase of a '95 chevy k2500 6.5td/auto trans, 134,000 mls prompted me to search out the experts and from what ive read so far you're well versed on this motor.....ive got a 4 book set of manuals on the way from the U.S.A to blighty, to help me out as well,cant wait.
have been thumbing through a Chilton manual to read up on some basics ..i'm expecting to be parting with some cash to get this thing to a good useable standard to pull my trailer..so here goes ..
blowby ......its got some...
injectors ..apparently have never been changed...
k+n airfilter fitted...woo hoo
turbo kicks out black smoke on/off/on/off when accelerating.....read its vacuum controlled, not what i'm used to ...can it perform better without the smoke? is there a fault present i'm not yet aware of...i'm not looking for a hotrod or i'd have bought a petrol(gasoline) engined truck ,just want it to run clean and healthy..
looking to change injectors asap and remove the cat section of exhaust.
auto trans seems rough/clunky changing through to drive from park when cold, and the shift light goes out every other position moving from park position.
havent had a chance to get a good look at it yet and its parked up doing nothing.
would like to think its fixable (maybe 'cept the blowby) any comments on basic improvements to this engine would be helpful...i'll be reading through the forum as i get chance and may come across these answers anyway....
lastly ...think yourselves lucky .....we currently pay £1.07 per litre for diesel...x4.5..thats £4.81 a gallon (imp gallon) divide by 0.82 converts that to £/U.S gallon ,x 1.62 current exchange rate, = $6.39 a gallon...(my math correct?)..hows that for ya? its expected to rise in the new year after the V.A.T, (tax) re-instatement back to 17.5% from the current 15%....you dont have it so bad.....yet ....is it time i emigrated ? ;)
'95 chevy k2500 basic mods....reply.
Thanks for the quick replies, very much appreciated.
yes it is spitting out black intermittently under heavy throttle...it seems ok when accelerating gently,from what i can see looking out of the passenger side mirror but when you throttle hard it does it.....the Police dont take too kindly to black clouds and joe public has been made aware of the health risks , theres even a telephone number to ring to rat someone out...basically its a no no over here...seen the black stacks on youtube, just wasted fuel as far as i'm concerned im afraid... am i being too sensible?
I'll be looking at the air intake and vacuum system this weekend....first time ive come across a vac controlled turbo before, i thought the spring was missing when i first moved the actuator arm by hand.....
ive seen the turbo master kit available from Heath but wondered if an adapted actuator from a jap pickup would do the same job...i could cutout the back of the actator and fit an adjuster screw/plate on the base of the spring, and pipe to the inlet manifold. with a guage i could set it up to the 5-6psi Robyn recommends....that kit looks as though it relies on the pressure on the wastegate valve area itself to overcome the spring ??unless theyre not showing all the parts...... ive got a boost guage but would have to source a pyro from your side of the water cos ive never seen the like advertised in any of the usual places over here....if i can get the standard vac system to work well and run clean, i may just leave well alone...chasing power means lost mpg...i bought this truck mainly to pull a mini digger trailer at 3500kg, something the jap pickups just wont do legally here, they're only rated to pull a 2 tonne trailer and ive passed some heavy lookin loads going the other way, just plain dangerous.........i once came off the road in a modified range rover pickup with a trailer full of dolomite , approx 2 ton , and lived to regret it...needless to say 7 years later i'm back to towing trailers again but with a good heavy truck as a traction unit.... .i'll let you know how i get on with these checks..... thanks again to you all,
oh yeah.......it cost me £105 to fill the fuel tank for the first time...(approx. $170 ?).....i'm going to the bank to get a mortgage for the next tank full and see if i can spread the payments over 6 months or something ..........he he he :p
'95 chevy k2500 basic mods...reply
thanks again fellas,
ive just been in the members area and looked at some of Jim Bigleys write ups on turbos and wastegates and theres a great article im going to follow up about early wastegate mod to this truck using '92-'93 wastegate actuator, should be cheaper than the custom one from heath and do exactly the same thing......and should do away with the vac problem altogether and make it less prone to faults....
boost guage is sat here on my desk not yet fitted so those symptoms cant be proved until it is...going to get a pillar mounted guage pod and mount this along with a pyro ive seen in the same writeups...what a great source of info this is turning out to be.....:D thanks again for your input...