2 thumbs up for Diesel performance injection in Toronto, ON

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Hey Folks,

just thought i'd share my Injection Pump (IP) rebuild experience (on our jdm land cruiser) from Giles Gallie at http://www.performancediesel.ca/about.htm. I know there are mostly gassers here but i do know there are some diesel owners around.

the 1991 HDJ81 has been due for an IP (rotary pump) rebuild for a while now. I can only assume that it hasn't been touched ever as I bought the 80 in 2006 with less than 50K kms on it (one owner in japan before the dealer brought it here) and i've put in about 120K kms since. I previously heard about Giles from other cruiser guys and he has since done some minor IP work on an older cruiser i had (bj 60 with inline pump) and the service was awesome. I've heard nothing but great things and there aren't too many IP specialists around so i went ahead and dropped the rig off at his Shop. he was worked on IP's for over 20 years and he is well known in the diesel tuning world (i.e. tdi jetta guys).

He hasn't done much work on toyotas so i was a little leary but he assured me that taking the IP out (and after he saw how simple the 1hdt motor looked/timing cover removal, etc) would be pretty straight forward. I was fine with him taking his time as his shop is quite busy with a regular stream of IP's waiting for a rebuild (mostly shipped in or dropped off).

by the end of the week, the IP was done and the rig was ready for pickup! Now, i know nothing about IP's except the fact that they are the heart of a diesel engine and there are a tonne of bits and crucial timing of moving parts that need to happen for the engine to run smoothly and efficiently. I can only comment on the experience after i checked the shop out and learned about the process. and at the end of the day, it boils down to how the truck feels performance wise and mileage.

the process is basically, remove the IP, take it appart, wash the pieces thoroughly, replace the seals, rebuild, bench test/calibrate(? this is where the magic happens) and reinstall.


here's a shot of the 3 stage cleaning process they have


(Not my pump, but a smiliar one to mine all apart/cleaned and ready for reassemble..)


the original seals, very brittle from age (23 yrs..), and the source of the leaks..


one main seal that was twisted (either it wasn't installed perfectly from the factory, or maybe the IP did get serviced in japan once..?)


and here's the IP test bench where all the fine tuning happens (looks very complicated!)

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and here's the finished product installed

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the injectors were inspected, cleaned, and ballanced but Giles told me that they will eventually need replacing. they're at about 75% efficiency but he suggested that we try it out first and see how the mileage is before jumping into a more expensive job of replacing all 6 (an easier job we can do down the road).

So, results?! well, the truck is definitely running smoother, starts even that much quicker, has much less smoke at start up (normal anyway with diesels)/very little to no smoke at acceleration, and she now pulls harder after 2000 rpm!! Giles said that he "tweaked" the IP for more umph. i thought this was perfect since i mostly drive the rig at under 2000rpm just putting around town ad cruise at about 2200 rpm. when it's time to pass, watch out!

I wanted to run a couple tanks to check for mileage. for city stop and go to and from daycare and the train station (and during this brutal cold weather we've had), she didn't do too well, as expected (the worst i'd get would be around 14 to 18L/100kms) but that's with warm up time being longer sometimes than the actual drive to the train station.

then i went for a camping trip and between a combo of highway and country road driving, the 80 did 11.6 L/100 kms. What's great is that that's what i was getting on average, in the summer, with NO roof top tent/thule box on top (which i've had now for over a year). and that's with injectors that weren't spraying at full efficiency and in the cold. so now i can't wait to compare apples to apples with summer highway driving with nothing on the roof. it can only be better than when i first had the truck in 2006!

Big thanks to Giles for the awesome, friendly, and thorough service and meticulous attention to detail! I can just imagine the kind of numbers he can put out with custom performance pumps which is what he's definitely known for.

So if anyone needs an IP rebuild, look no further, give him a shout and tell him Jerome with the right hand drive land cruiser sent ya.

cheers.

[delicioso!]

a couple vids..


cold start up, -20 with no block heater


after warm up, engine sound, no smoke