Difference between Mk1 and Mk2 PI wheel trims

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johnnydog
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Difference between Mk1 and Mk2 PI wheel trims

#1 Post by johnnydog » Sun Sep 25, 2016 10:23 pm

I have been going through a selection of new Triumph 'rostyle' wheel trims that I have.
Some are definitely Stag wheel trims as they have an oval valve hole due to the 14" rims; they also have a 5/8" deep retaining ring on the rear. PI trims had a round valve hole for the 13" rims.
However, I have a number of PI trims with varying depths of the retaining ring on the rear. Some are 1" in depth; some are 5/8". All have the central hole for the emblem, which rules out the Vitesse etc.
I am just wondering if there was difference in the Mk1 and Mk2 PI trims? I know that if you fit a Mk2 2000 trim to a Mk1 2000, the trim sits proud of the wheel rim possibly by at least 1/4" or so, which would suggest that the retaining ring on the Mk1 PI wasn't as deep.
Are there any Mk1 PI owners out there (M25 driver?) who could possibly check their original trims for me and measure the depth of the retaining ring on the rear?
TIA
John
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1967 Mk1 2000 in Gunmetal Grey
1969 Mk1 2000 in Royal Blue
1970 Mk2 2000 in Valencia Blue
1972 Mk2 2.5 PI in Triumph White
1973 Mk2 2.5 PI in Sienna Brown
1976 Mk2 2500S in Carmine Red

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englishbull
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Re: Difference between Mk1 and Mk2 PI wheel trims

#2 Post by englishbull » Mon Sep 26, 2016 11:39 am

Hi John
Yes you are correct
Mk1 PI wheel trims are different on fixing rings
     Lee Godfrey     Club Member 7075      

1960 948 Herald Coupe in Alpine Mauve
1962 1600 Vitesse Convertible in White
1961 Standard Vanguard estate

johnnydog
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Re: Difference between Mk1 and Mk2 PI wheel trims

#3 Post by johnnydog » Mon Sep 26, 2016 12:37 pm

Hi Lee, thanks for that - I thought they may be different. However, I could do with knowing the depth of the retaining ring on Mk1 trims - I have Mk2 PI trims on a car so measuring those isn't a problem.
Don't know whether you have any original Mk1 PI trims kicking about......? :wink:
Register Member no. 1596

1967 Mk1 2000 in Gunmetal Grey
1969 Mk1 2000 in Royal Blue
1970 Mk2 2000 in Valencia Blue
1972 Mk2 2.5 PI in Triumph White
1973 Mk2 2.5 PI in Sienna Brown
1976 Mk2 2500S in Carmine Red

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TedTaylor
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Re: Difference between Mk1 and Mk2 PI wheel trims

#4 Post by TedTaylor » Mon Sep 26, 2016 11:35 pm

Been through all this saga with my stock of trims which I was sorting for the Mk1 PI estate!

The narrower ring is to use on the Mk1 (2000 or PI) type wheel as it is 4 1/2inch rim as opposed to 5 inch on Mk2 which uses the wider ring. Rim size for both is 13 inch.

A useful check is to look at the trim from the side. The retaining ring is almost flush with the back of the trim on the Mk1 but stands proud by about 1/4 - 1/2 inch on the Mk2

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Re: Difference between Mk1 and Mk2 PI wheel trims

#5 Post by johnnydog » Tue Sep 27, 2016 6:13 am

That answers my query perfectly Ted! Thanks very much!
Register Member no. 1596

1967 Mk1 2000 in Gunmetal Grey
1969 Mk1 2000 in Royal Blue
1970 Mk2 2000 in Valencia Blue
1972 Mk2 2.5 PI in Triumph White
1973 Mk2 2.5 PI in Sienna Brown
1976 Mk2 2500S in Carmine Red

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englishbull
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Re: Difference between Mk1 and Mk2 PI wheel trims

#6 Post by englishbull » Tue Sep 27, 2016 7:07 am

Mk1 PI wheels are different to Mk1 2000 though
     Lee Godfrey     Club Member 7075      

1960 948 Herald Coupe in Alpine Mauve
1962 1600 Vitesse Convertible in White
1961 Standard Vanguard estate

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Re: Difference between Mk1 and Mk2 PI wheel trims

#7 Post by johnnydog » Tue Sep 27, 2016 11:12 pm

englishbull wrote:Mk1 PI wheels are different to Mk1 2000 though
I have to disagree about wheels there Lee (sorry!)
The Mk1 2000 originally was supplied as you know with white painted steel rims, which were then changed to silver painted steel rims in late 1968 coinciding with the release of the 2.5PI. This was at same time as the bodyshell on the 2000 was the same as the new PI, with the horizontal spare wheel well, and the rear exhaust hanger spot welded to the boot floor. The ident in the offside chassis rail also appeared. They were fitted with MC engines, and the air filter and rocker cover were painted silver instead of the previous black. They also lost the front rocker cover fastening bolt for a stud like the middle and rear. They were also fitted with Mk2 size discs and calipers. I think it may have also been the point when the larger servo (there had been two previous smaller sizes of servos) and clutch master cylinder with the remote reservoir (as in the Mk2) was used. Probably also when the 12v white fingered clock appeared instead of the red fingered battery powered clock.
I'll stand corrected on any of the above, but I believe these changes are correct.

But going back to the point in question, the Mk1 steel rims in silver were the same part number whether they were 2000 or PI - 305983.

I'm just waiting now for the bullets to fly....... :D
Register Member no. 1596

1967 Mk1 2000 in Gunmetal Grey
1969 Mk1 2000 in Royal Blue
1970 Mk2 2000 in Valencia Blue
1972 Mk2 2.5 PI in Triumph White
1973 Mk2 2.5 PI in Sienna Brown
1976 Mk2 2500S in Carmine Red

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englishbull
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Re: Difference between Mk1 and Mk2 PI wheel trims

#8 Post by englishbull » Wed Sep 28, 2016 5:36 am

I stand corrected then but I always thought and was told that the fixing lug holes where different
     Lee Godfrey     Club Member 7075      

1960 948 Herald Coupe in Alpine Mauve
1962 1600 Vitesse Convertible in White
1961 Standard Vanguard estate

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Re: Difference between Mk1 and Mk2 PI wheel trims

#9 Post by johnnydog » Fri Sep 30, 2016 2:45 pm

englishbull wrote:I stand corrected then but I always thought and was told that the fixing lug holes where different
I don't quite understand what you mean by the fixing lug holes, Lee.
(P.S. I always thought lug holes were ears..... :lol:)
Register Member no. 1596

1967 Mk1 2000 in Gunmetal Grey
1969 Mk1 2000 in Royal Blue
1970 Mk2 2000 in Valencia Blue
1972 Mk2 2.5 PI in Triumph White
1973 Mk2 2.5 PI in Sienna Brown
1976 Mk2 2500S in Carmine Red

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englishbull
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Re: Difference between Mk1 and Mk2 PI wheel trims

#10 Post by englishbull » Thu Oct 13, 2016 7:52 am

Explain when see you next John
     Lee Godfrey     Club Member 7075      

1960 948 Herald Coupe in Alpine Mauve
1962 1600 Vitesse Convertible in White
1961 Standard Vanguard estate

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