Search found 29 matches
- Fri Jan 13, 2023 9:14 pm
- Forum: Four stroke
- Topic: Square 4 rods
- Replies: 5
- Views: 382
Re: Square 4 rods
Thanks everyone, I have now located a new set of rods which are on the way
- Sat Dec 24, 2022 9:26 pm
- Forum: Four stroke
- Topic: Square 4 rods
- Replies: 5
- Views: 382
Square 4 rods
Hello, I am about to start rebuilding my 57 S4, been delayed for over a year due to work but finally getting started. Does anyone have any information on the replacement con rods that were to be manufactured? I was put on a waiting list some time ago but no response so far. I want to build the bike ...
- Thu Jan 07, 2021 2:54 am
- Forum: Four stroke
- Topic: Head gasket
- Replies: 0
- Views: 967
Head gasket
Hello all, I am about to start assembling my ‘57 S4 engine, planning ahead and reading up as much as I can. I have the Otto head gaskets, reading the assembly instructions I find the instructions a little ambiguous regarding the initial installation. The instructions are clear for the re-tightening ...
- Thu Jan 07, 2021 2:44 am
- Forum: Four stroke
- Topic: Rod bolts
- Replies: 3
- Views: 1145
Re: Rod bolts
Thanks, I had already crack checked ( i own a commercial machine shop so no problem to magnaflux the rods and bolts) however there is a variation of up to 0.010” in the lengths of the 8 bolts, the longest being the 2 new bolts, so nothing to use as a comparison. I am at the point where it all looks ...
- Fri Jan 01, 2021 1:14 am
- Forum: Four stroke
- Topic: Rod bolts
- Replies: 3
- Views: 1145
Rod bolts
Greetings and Happy new year from Manitoba in winter. I am about to assemble my Mk2 Square 4 engine. I have reconditioned the original rods but was unable to find a full set of new bolts. Does anyone have the exact length of the original bolts? I want to measure and check the originals have not stre...
- Tue Sep 08, 2020 7:31 pm
- Forum: Four stroke
- Topic: Con Rod bolts
- Replies: 3
- Views: 1019
Re: Con Rod bolts
Perhaps I did not explain very well in the first post. I have separated the caps from the rods, what I am stuck on is removing the bolts from just the caps. These appear to be very tight, I have tried the usual gentle persuasion, heated the caps to expand the alloy around the bolts, made a basic too...
- Tue Sep 08, 2020 1:54 am
- Forum: Four stroke
- Topic: Con Rod bolts
- Replies: 3
- Views: 1019
Con Rod bolts
Hello all, is there any magical, easy way to remove the rod bolts out of the bearing caps on a 57 S4. I plan to re-size the L/E bearings but the bolts appear to be exceptionally tight, tried the usual mild blows with a plastic hammer, heating the cap, etc, but they all remain firmly in place. The sh...
- Mon Aug 31, 2020 5:03 pm
- Forum: Suppliers
- Topic: Square 4 camshaft
- Replies: 1
- Views: 1816
Square 4 camshaft
Not sure if this would be helpful to many of you, but I thought I would mention it. I am rebuilding a "57 S4, the camshaft was not worn, but it was pitted and unusable. I am based in Manitoba, Canada so some research led me to Shadbolt Cams, in Vancouver, BC <shadboltcams.com> They specialize i...
- Thu Jun 11, 2020 12:39 am
- Forum: Four stroke
- Topic: Front mudguard
- Replies: 4
- Views: 1640
Re: Front mudguard
Absolutely perfect Mick, exactly what I needed to know. Thank you. Mine is 2" short, obviously would have made it go much faster in the day. Now I can get the English wheel out and roll a section.
- Mon Jun 08, 2020 7:11 pm
- Forum: Four stroke
- Topic: Front mudguard
- Replies: 4
- Views: 1640
Front mudguard
Hello all, I am in the process of rebuilding and assembling my '56 Square 4, the PO had cut down the mudguards presumably as a "go faster" measure and in the name of 70's fashion which is the last time the bike was used. What remains is in good condition so I intend to rebuild it. As it ha...