Uprated Spring (oil pump)

[MaddMart]

Does any one know where to get an uprated oil pump spring from? I've tried Moss but they say they are discontinued (Moss part no. STR560). Also tried Fitchetts.

<p></p><i>Edited by: <A HREF=http://p206.ezboard.com/bthetriumphdolo ... omiteuk</A> at: 5/10/06 2:03 pm<br></i>

[davepoth]

tried S&S Preparations? They're mainly TR7, but I guess the part is the same.<br>
<br>
http://www.ss-preparations.co.uk

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[Carsreunited]

Hart Racing (Stags). I believe they use a stronger spring.<br>
<br>


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[MaddMart]

Thanks guys, I phoned S&S but they didn't have one so rang Tony Hart. I'm glad I did now, as he advised not to do it (well maybe on a worn engine). He says they only run their racing Stags up to around 50psi.

<p>Martin<br>
<br>
<!--EZCODE LINK START--><a href="http://www.dolomitesprint.com/" target="top">www.dolomitesprint.com</a><!--EZCODE LINK END--></p><i></i>

[Carsreunited]

That seems remarkeably low for an under load figure. Mines anywhere between 35 and 70.<br>
<br>


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[MaddMart]

I thought that was a bit low too, as I mentioned mine was 70 to 75 psi. Mine had recently dropped to around 60 though but still not bad.

<p>Martin<br>
<br>
<!--EZCODE LINK START--><a href="http://www.dolomitesprint.com/" target="top">www.dolomitesprint.com</a><!--EZCODE LINK END--></p><i></i>

[johnorr]

My 1850 never reads above 50 or below 35. Within tollerance?<br>
<br>
John, YDP300T (no mot!)

<p></p><i></i>

[MaddMart]

If my Sprint never read above 50 I would be thinking maybe big ends and/or mains or deffo something worn, maybe pump. I would assume similar for an 1850.

<p>Martin<br>
<br>
<!--EZCODE LINK START--><a href="http://www.dolomitesprint.com/" target="top">www.dolomitesprint.com</a><!--EZCODE LINK END--></p><i></i>

[2F45T4U]

the oil pressure stated in the haynes is 40-60psi at 2000 rpm for both 1850 and Sprint engines.

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[Jon Tilson]

John I've seen yours hitting the relief valve nice and early. That's all you want to see.<br>
<br>
You dont want it too high or it will blow the oil pump seals.<br>
<br>
60 is quite enough....<br>
I'd be happy with 50 on a stag V8 as its got more bearings to blow it out.<br>
<br>
My p6 V8 is 25 at cruise and no knocks...<br>
<br>
Jonners

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[2F45T4U]

Mine is 60 at idle <!--EZCODE EMOTICON START :eek --><img src=http://www.ezboard.com/images/emoticons/eek.gif ALT=":eek"><!--EZCODE EMOTICON END--> <br>
<br>
Well so says the gauge!

<p></p><i></i>

[MaddMart]

When it's cold, maybe!

<p>Martin<br>
<br>
<!--EZCODE LINK START--><a href="http://www.dolomitesprint.com/" target="top">www.dolomitesprint.com</a><!--EZCODE LINK END--></p><i></i>

[SprintV8]

<br>
On the Stag engine because of the single timing chain a uprated pump/spring will put extra strain on the tensonier and chain causing premature chain failure if not checked regularly.<br>
<br>
From the Stag man himself (Not me).

<p>1980 Dolomite SprintV8 (360bhp of TVR AJP V8 Pumping Alloy Coming soon !)<br>
2002 Citroen Xsara 2.0 HDi Estate.... Part's delivery Vehicle.<br>
They laugh at me because I am different. I laugh at them because they are all the same!)<br>
<br>
</p><i></i>

[Jon Tilson]

The timing chain tensioners dont have an oil feed nowadays....welll the last few I have done dont and with no ill effects. Even if they did i dont see how some oil squirting through a hole is going to force the tensioner out....it surely only ratchets out when the chain is slack.<br>
He's on drugs....<!--EZCODE EMOTICON START :hat --><img src=http://www.ezboard.com/images/emoticons/pimp.gif ALT=":hat"><!--EZCODE EMOTICON END--> <br>
Jonners

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[SprintV8]

<br>
That's because they all steered toward's timing belt's.<br>
<br>
Having served my apprenticeship with Mazda Car's I'm totally disagree with you.<br>
323 626 929 B/E 1800 2000<br>
All use a tensoiner with a click type adjuster that is pushed out by a small oil hole drilled into the block that feed's the tensioner.<br>
Sure the Stag use's the same set up.<br>
<br>
It just isn't going to adjust itself when the chain goe's slack.<br>
<br>
On Drug's I very much doubt it<br>


<p>1980 Dolomite SprintV8 (360bhp of TVR AJP V8 Pumping Alloy Coming soon !)<br>
2002 Citroen Xsara 2.0 HDi Estate.... Part's delivery Vehicle.<br>
They laugh at me because I am different. I laugh at them because they are all the same!)<br>
<br>
</p><i></i>