Smallfry
HE's Spartacus.
- Messages
- 2,308
- Location
- Kent UK
One of the engine mounts (there are four) has collapsed on my little Yanmar digger. I thought the rubber has degraded, but it looks like it has just become debonded due to rust getting into the metal parts.
A new one is just over £200
and several weeks lead time. Annoyingly, there is a part number embossed in it, but the only supplier I can find, is in Japan @ £20 
BUT, they will not ship overseas.
I bought four of the one on the right some time ago on eBay. They are for a Kubota though. They looked similar in the photos, but the seller never responded to my requests for dimensions, but I bought them anyway. They are too tall by 20mm, and larger all round, so will not fit without a lot of modification to the chunky mounting brackets. This is doable, given time, but what sticks in my mind is an experience with an Opel Manta years ago. The mounts on that were a similar type, and were very expensive for me at the time, so I thought I would use the round puck type ones from a Cortina/Capri Pinto engine instead. Both iron OHC 2.0 litre engines of a similar weight. What could possibly go wrong ? After fitting them the vibration was terrible. Really bad. So I ended up getting the correct one from a breakers, and normalness was restored, and lesson learned.
I don't want to spend a load of time modifying the brackets, only to have this happen again !
So I am going to try to stick them together somehow, but with what ? I have had the parts in citric acid overnight, so the parts are now rust free, so CT1 type stuff, superglue, or try heating the steel parts to try and melt them together ? I want to use stuff I already have really, just in case it doesn't work. Superglue seems the obvious choice, but I do not seem to have much long term luck with it.
If that becomes a fail, I thought of buying polyurethane casting rubber, I guess it will bond OK, but the problem with that is the Shore hardness. There are lots of different grades available.
A new one is just over £200
and several weeks lead time. Annoyingly, there is a part number embossed in it, but the only supplier I can find, is in Japan @ £20 BUT, they will not ship overseas.I bought four of the one on the right some time ago on eBay. They are for a Kubota though. They looked similar in the photos, but the seller never responded to my requests for dimensions, but I bought them anyway. They are too tall by 20mm, and larger all round, so will not fit without a lot of modification to the chunky mounting brackets. This is doable, given time, but what sticks in my mind is an experience with an Opel Manta years ago. The mounts on that were a similar type, and were very expensive for me at the time, so I thought I would use the round puck type ones from a Cortina/Capri Pinto engine instead. Both iron OHC 2.0 litre engines of a similar weight. What could possibly go wrong ? After fitting them the vibration was terrible. Really bad. So I ended up getting the correct one from a breakers, and normalness was restored, and lesson learned.
I don't want to spend a load of time modifying the brackets, only to have this happen again !
So I am going to try to stick them together somehow, but with what ? I have had the parts in citric acid overnight, so the parts are now rust free, so CT1 type stuff, superglue, or try heating the steel parts to try and melt them together ? I want to use stuff I already have really, just in case it doesn't work. Superglue seems the obvious choice, but I do not seem to have much long term luck with it.
If that becomes a fail, I thought of buying polyurethane casting rubber, I guess it will bond OK, but the problem with that is the Shore hardness. There are lots of different grades available.
love it, proper bodging & top marks earned.
