Ariel 1949 rigid engine plates

[BarrieSteel]

Looking at my engine plates the the footrest tube pegs are missing or did they have any on earlier singles? Also it's missing the small L shape bracket for upper chaincas e location. Chaincase bolt passes through left-hand plate hole into right hand bracket looks like?,believed to be common for the bracket to be missing, can fabricate both easily if need be.Seems like extra engine hole in plates to?.

[Roger Gwynn]

You have a 1953 or later plate when for some unknown reason the peg was moved from the plate to the support. The peg should be positioned on a 19/32 rad from the footrest stud hole and 15/64 above the centre line of same in approx. 10 o'clock position viewed from the right side. The lower support is the early style, replaced by the other one but I don't know when this was, they are interchangeable so there was no change of part number.

[BarrieSteel]

Roger ,Thank's for the tips on the engine plates, will drill holes for pegs as original dimensions you gave me, although the peg holes look rather large on my later plates I have if it is thoses. That little L bracket missing, is that just to just bridge the to plates together only, what supports rear part of chaincase if any, Barrie

[paul.jameson]

The only thing supporting the back of the primary chaincases is a 5/16" cycle thread bolt which goes through the large hole in the cases below the clutch dome into the frame. It may or may not need a spacer between chaincases and frame, presumably depending on how straight your frame is. Use of this bolt is far from critical. Of the four bikes I have on the road, only two have the bolt fitted and having just checked this, one of the bolts fitted needs tightening up again !

[nevhunter]

Yeah use a correct thickness spacer and don't tighten much. When she's thumping, things move around Nev

[BarrieSteel]

Thanks again gents for your helpful information, because bike was in bits when I had it, bit of a jigsaw sometimes .

[nevhunter]

Seek and YE shall find. Surprising how much is around when you look hard. Inspect carefully the condition of these parts before you relax The 1/4 studs can crack the case if they go in too far. I loctite them in to prevent that happening. Nev