"SPIDER" said:
What i was after from Alto was ... Water Pump seals
Hi Dave. These seals seem to be nothing special. Here are a couple of back postings off the Yahoo list that may help:
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"Proceed as follows:
1. Drain coolant and dispose of it (do not reuse).
2. Remove impeller housing by first withdrawing the PK rotor to gain access to the fourth retaining screw.
3. The exposed impeller has A LEFT HAND THREAD and can be unscrewed (clockwise) from its shaft by first engaging bottom gear with an assistant applying the rear brake. I used a small three-pronged device between the fins, but an adjustable rubber-strapped bottle/jar opener should suffice.
4. Once the impeller is removed, the old seal can be withdrawn using a hooked pick (taking care not to damage the housing).
5. Clean the shaft and the housing, then lubricate both with inert rubber grease. Next slide over the shaft a new 12x19x5 oil seal and carefully press it home square into the housing.
The oil seal should be available from your local bearing stockist or, in the UK, from Kent Bearings (Tel. 01233 500005).
6. Reassemble by tightening the impeller (anti-clockwise) firmly by hand only and the PK rotor nut by no more than 18 lb/ft. Do not use locking fluid on either.
7. Refill system, preferably with non-silicone, non-abrasive Honda coolant (as first recommended by Tim Annett). This is readily available in the USA but, in the UK, is the subject of special order.
David Lloyd"
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"I?ve just rebuilt my Formula and I put new bearings and seals in the water pump, a new seal on the gearshaft and a new seal on the end of the crank. All fitted into the clutch cover. I got all the bearings and seals from Brammer Bearings in Scunthorpe, no problem. They amounted to ?29.08 in total.
One word of warning: I don?t now if anyone else on the list can confirm this, but the seal on the end of the crank is listed as a 15x28x7 (that?s 15 ID, 28 OD, 7 thick). But the hole in the casing is only 25 dia. So I had to go back and get a 15x25x7. I?ve looked through the other parts lists for all the 750 models and there all listed as 28 dia., but I think this is a mistake. It?s certainly wrong on my ?98 Formula.
Anyhow back to the plot. From the impellor in, you have:
? a 19x12x5 seal;
? a 19x10x5 bearing (SKF 61800-2RS1+7. The 2RS is twin rubber seals in the bearing as it?s on the water side);
? a 10x16x4 seal;
? a 22x10x6 bearing (SKF 61900/C3. This bearing has no seals as it's getting oil from the engine splashed on it. The C3 is a bearing clearance number for high speed, but I couldn?t find it in my bearing book and when I talked to the bearing shop they said the same. But, as the outer bearing isn?t listed as a C3 and it's on the same impellor shaft, I couldn?t see a problem. And it?s running fine.
? and finally, a 12x16x3 gearshaft seal.
Any bearing shop should be able to supply if you just tell them the above sizes.
Carl"
. When they decided to stop racing Laverdas in September 2009, Aaron announced that they'd be getting rid of their remaining stock ...
