This is an excellent opportunity for anti-SVO critics to rail against veg. oil conversions. But I firmly believe the conversion is at fault, which once again amounts to operator error. Greasecar kits do not have a temperature gauge, which makes it impossible to maintain optimum fuel temps. What most people don't understand (and I'm not sure how you would know this without using a system with a temp gauge) is that SVO temp fluctuates wildly during normal operating conditions.
For example, draft a semi and your SVO temp will increase 20 degrees F. Pass that same semi and you'll see the temperature gauge plummet. It all has to do with the amount of air flowing across the engine and SVO lines. Temps can also change dramatically at the bottom of hills (inversions), and obviously fluctuate based on cruising speed.
So how the hell do you know if your Greasecar kit is up to temp?
You don't.
I'd planned on testing the system by installing a digital temperature gauge right before the injection pump, and I may still do that. But I'm not sure I want to put it through any unneeded stress after the $500-$800 rebuild.
In any case, here are some forum topics about Toyota 2LT injection pumps:
1985-1987 Toyota diesel Trucks - Injection Pump Forum Topics:
Nissan diesel forum: Nissan SD22 or Toyota 2L?
1987 Toyota TurboDiesel 2LT Injection Pump Failure
Toyota Diesel Forums - needing a new lift pump
Specifications: the pump is a rotary, Denso model 096000-3210.
Friday, November 16, 2007
Toyota Diesel Injection Pump Failure
Subscribe to:
Post Comments (Atom)
3 comments:
At least it's a Bosch-VE-style AXIAL PISTON pump. They're not as bomb-proof as the inline ones, but are much better for vegoil than the Lucas/CAV (and Bosch VP44) radial-piston pumps.
VWs up to 2003 all run a VE pump, and are popular and fairly robust for vegoil conversions. I had 3 VE pumps fail when the new ULSD was introduced this past year. My VW truck (with a VE pump) ran biodiesel (unwashed in the early days) and vegoil (poorly heated in the early days) for 5 years, after one month on ULSD and the seals blew.
Bosch has updated their technical literature, so they don't offer the VE pump handbook anymore (ISBN 3-934584-38-1), but they still offer a ton of info. The "Bosch Handbook for Diesel-Engine Management" includes most of the diesel tech booklets in one.
Damn, that's helpful information!
Thanks for the comment!
Hi,
i m looking for some information about functionality and maintenance of piston pumps which provide better services, please also provide me some information regarding stainless steel triplex.
Regards
kelvin.
Post a Comment