Oil type and timing chain rattle on start-up

[Jake Raby]

Oil does impact tensioner rattle.. This is in part to the way oils will retain pressure in their tensors, as well as how well the boundary layer protection is able to buffer the sound of the chains.

Oils high in Moly love tensioners. The best oil to quieten tensioners has always been redline. Our latest generation of DT40 is the best its ever been for this, as well.

[san rensho]

Originally Posted by Jake Raby

Oil does impact tensioner rattle.. This is in part to the way oils will retain pressure in their tensors, as well as how well the boundary layer protection is able to buffer the sound of the chains.

Oils high in Moly love tensioners. The best oil to quieten tensioners has always been redline. Our latest generation of DT40 is the best its ever been for this, as well.

I tried Redline and as the french say, no diffrance.

[Jake Raby]

Originally Posted by san rensho

I tried Redline and as the french say, no diffrance.

Then you have a tensioner issue, or chain issue, or both. The IMS tensioner is the worst for this, and as it rattles it hammers on the IMS bearing, and it's tensioner paddle and wear pad. I think this contributes at least some to IMSB failure.

Its not a normal occurrence; just because most do it, doesn't make it mechanically acceptable. The tensioners for 5 chain engines have been revised 7 times, 3 chain have been revised 3 times.

If its rattling at start up, things are wearing. Period.

A huge amount of preventative packages we are doing these days end up getting chains, as most are stretched and send the tensioners out of range.

[Flavor 987S]

Originally Posted by Jake Raby

Our latest generation of DT40 is the best its ever been for this, as well.

Thanks, Jake. I always knew this was coming, but never knew the exact timing. When I asked about this in December/January, last year, the timing was not known, and you had a good inventory of the first gen DT40. When did the update take place? Is there a way to know if the new formula is in the bottle by looking at a specific code or something? Thanks again.

[Jake Raby]

Originally Posted by Flavor 987S

Thanks, Jake. I always knew this was coming, but never knew the exact timing. When I asked about this in December/January, last year, the timing was not known, and you had a good inventory of the first gen DT40. When did the update take place? Is there a way to know if the new formula is in the bottle by looking at a specific code or something? Thanks again.

DT40 has been a continual development since it's conception as "JD Raby's Snake Oil".

The product changed last year, as you are referring to. The new batch is fully developed and is just awaiting blending, and bottling. This newer version improves MPG, helps with tensioner quietness and has proven to pick up a few more ponies in the top end.

[JFP in PA]

Originally Posted by Jake Raby

DT40 has been a continual development since it's conception as "JD Raby's Snake Oil".

The product changed last year, as you are referring to. The new batch is fully developed and is just awaiting blending, and bottling. This newer version improves MPG, helps with tensioner quietness and has proven to pick up a few more ponies in the top end.

Will it be marked in anyway so that the newer blend can be identified?

[Jake Raby]

Originally Posted by JFP in PA

Will it be marked in anyway so that the newer blend can be identified?

I have no idea.. All mine comes in 55 gallon yellow drums with my name on them. I don't care about marketing or sales, just making things work.

I am sure LN will get word from Lake when they get the new formula, others probably won't ever know that its changed...



And it'll probably change again next year, and the year after that, because I am never, ever satisfied, and neither is Lake. He sends me 5 gallon pails and says "try this, here's the blend #, use on all your drains and data. I'll send you a control next week". That one bucket might cost 1,000 bucks to have made up, and 1/2 the time it doesn't work.