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Old 3rd April 2011, 20:10   #106
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Default Re: Governors - Part3

[quote=Sutripta;2301468]
Quote:
I was talking of non ECU engines.
Ok.

Quote:
The governor is selfcontained, and draws its power (and monitored speed) from some rotating shaft.
Usually from the main shaft or an attached one via a associated and calibrated reduction worm!


Quote:
The electronic one needs external electrical power.
Yes usually a solenoid that activates a mechanical stopper of sorts.



Quote:
Having a non- self contained governor is an invitation to disaster, or a maintenance (and downtime) nightmare.
+1

Quote:
Not as simple as that! Though discussing that here would be way off topic.
BTW, why is on the road performance of HPS better than EPS?!

HPS is a pure hydro-mechanical device unlike an EPS which reads off a pre-loaded log table

Infact EPS can better HPS in response times. The unfortunate thing is "we" using a cheaper solution always. This leads to the belief that EPS sucks.

The load and the response to load is an engineered factor that many dont seem to understand leading to EPS failures.

They cost much much less than HPS though!!

infact a step ahead in thinking, a leading indian auto manufacturer actually displayed their best seller with a steering using servo motors and encoders in a premium exhibition? The vehicle had no steering column, steering box R&P etc etc..

Sorry for going OT: could not resist sharing ideas!

Last edited by headers : 3rd April 2011 at 20:14.
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Old 3rd April 2011, 22:13   #107
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Default Re: Governors - Part3

Quote:
Originally Posted by headers View Post
HPS is a pure hydro-mechanical device unlike an EPS which reads off a pre-loaded log table

Infact EPS can better HPS in response times. The unfortunate thing is "we" using a cheaper solution always. This leads to the belief that EPS sucks.

The load and the response to load is an engineered factor that many dont seem to understand leading to EPS failures.

They cost much much less than HPS though!!

infact a step ahead in thinking, a leading indian auto manufacturer actually displayed their best seller with a steering using servo motors and encoders in a premium exhibition? The vehicle had no steering column, steering box R&P etc etc..

Sorry for going OT: could not resist sharing ideas!
Hi,
Not any closer to my original question!

Should discuss steering in another thread. However, let me add that the problem with EPS is not response time but (the highly subjective) feel.

Regards
Sutripta
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Old 16th April 2011, 10:56   #108
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Default Re: FIP Flop

Hi Sutripta,

Happy Birthday.

Regards,

Arka

PS - VKD--04200 complete.
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Old 16th April 2011, 20:46   #109
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Default Re: FIP Flop

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Originally Posted by ex670c View Post
Hi Sutripta,

Happy Birthday.

Regards,

Arka
Hi,
Thanks for the thought. But it isn't my birthday! Where did that come from?

And a slightly belated Subho Nobo Barsha.

Regards
Sutripta
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Old 23rd April 2011, 20:47   #110
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Default Re: Governors - Part3

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Originally Posted by ex670c View Post
Hi Sutripta,

Please do tell us your interpretations or understanding of this Technical Bulletin so far.

Regards,

Arka
One thing which I found interesting (because I had never thought of it) was the relationship between governors and reverse running of the engine.

Regards
Sutripta
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Old 6th August 2015, 13:40   #111
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Default mm540 DP - Difference between a Bosch and a Lucas TVS diesel pump?

Hey Guys,
I am in for an engine change for my 540. ALthough this engine was recently built and has hardly run 4k kilometers. During a recent off roading last week the water seeped into the engine via the air filter box. (No snorkel installed - Regretting this).
Although it runs ok after that, It emits a lot of white smoke and has lost its UMPH!! I am guessing an expense somewhere around 12k of parts replacement including labor to get engine running up and smoothly again.

But my thoughts were - is re-hauling this engine worth it? I could go in for a used DI or an MDI. But I need to stretch my budget by not a bit but a lot.

And while thinking about all these things, I got a call from my mechanic saying that a DP engine is up for sale as the owner is getting an MDI on his jeep. And he suggested I check the engine out before I decide on anything else.
So, today morning I went and had a look at the donor jeep's engine and I see a Lucas TVS diesel Pump. I have driven a Dp engine with this same pump before and it was ultra smooth didn't rattle a lot and did good speedo readings for a DP.

So, I started this jeep and i had the same experience as I had before driving a jeep with the Lucas TVS diesel pump. Ultra smooth and a good pick up and response.

The reason for this post is - I tried to find out more about this pump (Lucas TVS), And I haven't been able to find out anything about it, there is no info anywhere. Can someone please shed light on this?

when was this manufactured?

whats the difference between a Bosch and a Lucas TVS diesel pump?

Thanks in advance.

Last edited by yamaniac : 6th August 2015 at 13:42. Reason: Needed to change the title.
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Old 7th August 2015, 21:49   #112
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Default Re: mm540 DP - Difference between a Bosch and a Lucas TVS diesel pump?

Quote:
Originally Posted by yamaniac View Post
whats the difference between a Bosch and a Lucas TVS diesel pump?
I take it you mean end user experiences rather than inner workings.
My personal observation: When the pumps are working fine, no difference. If you have to service these, major difference. In my neck of the woods, a CAV could not be serviced properly. Lucas themselves normally make matters worse (and insist on changing the distributor plate at huge cost everytime).
All the CAVs I've had had governor problems sooner or later.
The VE can be competently serviced by any authorised dealer.
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Old 7th August 2015, 23:57   #113
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Default Re: mm540 DP - Difference between a Bosch and a Lucas TVS diesel pump?

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Originally Posted by yamaniac View Post
it was ultra smooth didn't rattle a lot and did good speedo readings for a DP.

when was this manufactured?

whats the difference between a Bosch and a Lucas TVS diesel pump?

*I saw the Lucas IP on a 2000-model Armada 4x4; with Armadas being considered top-of-the-line in those days, not surprising if a quieter/smoother pump (have heard this claim earlier, too) might have been used on them. (Interestingly enough in light of your story, the car was missing and smoking white, which apart from engine internals, is a very typical symptom of air getting into the injection pump/lines somehow. If it's steam (vs. smoke) it could be a head gasket, too (I know this was not your question, though).

*One difference, according to our local pump technicians here in H.P. (and reflecting Sutripta's comments below), is that the Lucas/TVS is not (or is no longer?) rebuildable, while the Bosch currently is.

-Eric

Last edited by ringoism : 8th August 2015 at 00:03.
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Old 6th July 2017, 20:11   #114
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Default Re: FIP Flop

Hi Guys

Does anyone have idea about the cost of Bosch CP4 HPFP for jetta?

mine is broken at the piston head. :(
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