The 15B-FT is larger and more powerful than a 3B.
The 15B-FT is mounted up with 3B motor mounts.
No risk here ...
The motor mounts failed and I didn't notice. Or at least I didn't notice a failure event. I did notice cuts in the edges of the fan blades from contact with the fan shroud and they were getting deeper.
I went to order replacement 3B mounts (12361-58060) and they were not available. Pivoted to 13B mounts (12361-58061) and they were not available either. So I started with an ebay search and immediately got hits for aftermarket mounts from a German manufacturer (Motorlagerung vorne) and the listings were in German (with no translation option in ebay). From the pictures, it was clear that the aftermarket mounts differed from Toyota configuration. Specifically, the isolator was not bonded to the upper steel cover. The upper mounting stud and locator pin extended through the loose upper steel cover. I was concerned with these unknowns.
I contacted Ralf (@Felde ) for help and insight. He demonstrated the best of this Cruiser community. This was a cold contact requested his help. He immediately reviewed the ad and confirmed that the product/manufacturer/ebay lister were legit. He suggested I contact the company directly so I could ask questions / inquire about pricing and shipping directly from them. Ralf thank you very much for your help.
When I searched for the Motorlagerung, City Racer showed because they listed these motor mounts as stocked and available. This made the choice easy so I placed the order and had the motor mounts in 3 days. However, the mounts that I received were manufactured by Nakamoto (P/N same as 13B mounts, 12361-58061) and appeared to be the same as the Motorlagerung mounts. Time to install them. View attachment 4111594
The larger size of the 15B-FT over the 3B quickly became a consideration. I could not jack the engine high enough to disengage the mounts from engine bracket or the frame bracket. The 15B-FT was snug against the firewall. The frame brackets are welded to the frame, so I had to remove the engine brackets. Clearance to the right side bracket was sufficient that removal/replacement was not too challenging. Clearance to the left side was tight. The injection pump and return fuel line were just inches away with the steering shaft reducing access space too. This resulted in a much more challenging removal/reinstallation task. As a result, the left side required several additional hours to complete compared to the right side. View attachment 4111595 View attachment 4111596
Got it done and working great again. Once I got the new mounts in / everything buttoned back up and running, I realized that the 15B-FT makes the entire Cruiser vibrate at idle. I recall this being the case last year when I first completed the 15B-FT install, and it is back due to the new motor mounts. So in the future; I will know that if the Cruiser is not noticeably shaking at idle, then I need to be looking at replacing the motor mounts again. Now to see how well these aftermarket mounts last ...
I am curious to see the longevity of those mounts for you as I bought the same brand transmission mount for my BJ74 as the OEM, including the 62 series, appears to be NLA. I've not replaced mine as it is sitting in the shop to replace along with the OEM engine mounts. Great write up by the way!
