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Best injection upgrade


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On 10/24/2021 at 1:48 PM, Waldi said:

Hi Neil,

there is no need to convince me!
You did an excellent job on my PI equipment, is was one of the very few “fit and forget” items during my restoration.

Cheers,
Waldi

Forgive me for not knowing but can I buy refurbished injectors from outright, or is it an exchange service.

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8 hours ago, Mike C said:

Best thing I ever did to my TR was have the injectors & MU  professionally rebuilt by a Lucas  expert with a calibration bench. That transformed the car from a real dog to something that was a pleasure to drive.

Exactly!

the Lucas PI system is very reliable once it is set up properly

PI cars suffered from neglect over the years and thus gained the unreliability reputation

i’ve now had two PI setups refurbished by Neil Fergussen, and am in fact helping another member later today to install a set of Neil’s bargain of the century refurbished injectors. 

my current TR6 benefitted from a set of these injectors 8 years / 24k miles ago and still runs perfectly

I love the PI system, it’s such a part of the character of the car, so maintain it don’t replace it !

steve

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On 10/12/2021 at 7:24 AM, Scaf said:

Interesting - I will have to try various “starting” techniques including giving the pump time to build up pressure.

thanks

Yes! I leave mine (Lucas) for several minutes as it has to build up over 100psi... and fuel doesn't get to all the injectors instantly...as with each crank of the engine fuel is slowly making it's way up to each one...I've had mine for over 40 years...they ain't 'Turn Key' ! I live in Hemel BTM.

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  • 3 months later...

Well time ticking by and I need to make sure I get the car is good shape to ensure max use when the sun comes out.

Having established that 3 of the injectors empty themselves overnight, I think that has to be my starting point.

So I have acquired a full set of refurbished injectors from Prestige Injection that I intend to fit over the weekend.

 

 

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1 hour ago, Scaf said:

Well time ticking by and I need to make sure I get the car is good shape to ensure max use when the sun comes out.

Having established that 3 of the injectors empty themselves overnight, I think that has to be my starting point.

So I have acquired a full set of refurbished injectors from Prestige Injection that I intend to fit over the weekend.

 

 

Good luck!

i recommend filling each injector with fresh fuel before connecting it to the line and inserting in the manifolds, this greatly reduces cranking for the first start

steve

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1 hour ago, Scaf said:

 

I plan to remove the plugs to make cranking easier and to keep the injectors out until I can see them spraying.

priming them with fuel makes a lot of sense

That's what I do. I don't bother priming- you will be amazed at how fast a TR6 cranks over with the plugs removed.

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On 10/12/2021 at 7:01 PM, Macleesh said:

Mine needs quite a lot of cranking if left for a while (weeks) That's even after leaving the pump to run for a generous period. However use it daily an it's pretty much "on the button"

Mine is the same

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On 10/16/2021 at 2:46 PM, Rob Y said:

Hi Scaf,

You can buy them from all sorts of online stores that sell o rings - you don’t need to buy them from TR specialists at all.

I bought mine from a company called Polymax. You need 2 sizes and best to get them in Viton.

Sizes are 4.47mm ID x 1.78 CS for the small ones and 17.12mm ID x 2.62mm CS. These probably correspond to imperial sizes, but this is what it says on the packet. You’ll probably find there’s a minimum order charge, hence why you end up with so many!

Good luck when you do it. One good suggestion that was made to me it to remove the very small cut lip from the end of the injector in a plastic bag so that if it pings off you know where to find it!

Cheers, Rob.

Only buy ones that are made from Viton 'B' compound. Viton A is not very resistant to Ethanol petrol. The B compound is often green in colour!

Bruce

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What a difference !!

Swapped out the injectors and bled the system, car fired immediately and after a minute or two rad very smoothly.

The throttle response has been transformed, something I didn’t realise was a problem, as the car now revs more freely.

So pleased as all went to plan with no issues.

Am also doing a few little jobs like tidying up the front grille, replacing front badge that was damaged and smartening up the chin spoiler.

Then it will be tackling replacing the light stalk which looks like a pig of a job.

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