Timing belt

Hey everybody I am a new member . I have been looking at this page for many years.
I have a 2005 tundra with approximately 250,000 miles on it. I purchased this truck 2018 with 146,000 miles on it but I’m sure it has more.
My question is I am going to replace my timing belt and seals per my mechanic and I am wondering if this is a good time to also replace my oil pump and if anybody has any idea how much this is going to add to my quote for this to be done.
Play purchased an Asian timing belt kit is this a good choice and if it isn’t, please make recommendations.
I do understand that going to Toyota is always the better choice but everything through them is it gonna run me about $1200 just for parts this is not including the oil pump.
Thank you in advance

 

Big readme (general): https://www.tundras.com/threads/so-you-wanna-buy-just-bought-a-1st-gen-tundra-eh.115928/

Timing belt info: https://www.tundras.com/threads/timing-belt-master-thread-sticky.107240/

If you read the 1st link, you'll know Denso and Aisin are OEM. It's just important you don't order the parts from scAmazon or fleaBay. And if you order the Aisin timing belt kit, order the part number ending in '021' and not '001' so you get the full kit.

Belt is due every 9yrs or 90k miles per the manufacturer. I'd hope the belt has been replaced at least 3 times already. If not, I wouldn't be driving it to the shop, I'd be towing it to the shop

If the oil pump has never been replaced, I wouldn't fault you for proactively replacing. Likewise with the radiator! Order the correct Denso radiator, RockAuto will get it to you safely w/o damage, part number can be looked up at www.densoautoparts.com and be sure to get the correct model for your cab type! Double cab and access/regular cab are different!

Welcome to the forum!

 

Do you mean the water pump? That is usually part of the quote/scope of work when replacing the timing belt, not the oil pump.

I had a timing belt, water pump, and new radiator for $1200-$1300

 

Thanks for your reply.
I did get it off Amazon.
It is 021.
Would you suggest returning it and go thru who you suggested.
My mechanic suggested going with Toyota for warranty purposes.
I just can’t see paying the extra cash, as it is this is costly enough.

 

Yeah, I would return to Amazon. You can get the right Aisin kit from rockauto.com, I believe.

 

Aisin is Toyota's OEM supplier, same/same. Don't pay Toyota OEM prices when you can go straight to the source.

Whether you return it is up to you. We've had some members post questionable kits that lacked Aisin's typical markings in here, but came in very authentic-looking boxes. Counterfeit auto, small engine, and appliance parts are a known problem on scAmazon. If you believe the parts are authentic, or you get free returns and you don't need the parts for another few days, Summit Racing and RockAuto are typically the same price or cheaper than Amazon. Summit usually has free shipping on orders with quick turnaround, and RockAuto always has 5% off coupons you can grab at RetailMeNot.com and put in the "how'd you hear about us" box at checkout, which typically zeroes out shipping cost if they won't ship for free.

This is one of the most expensive things to get replaced on your truck, but it's also critical, because if you have the V8, and that belt snaps with any significant load/RPM applied, others have turned their engines into boat anchors.

 

I already have the 021 siding kit
I was just thinking to do oil pump also.
I’m not much at mechanic work when it comes to this, I am curious since doing the work this may be the time to do it.
I seem to also be leaking oil at my crankshaft seal, but it’s difficult to determine.
My mechanic says my whole engine needs to be resealed.
His estimate for cost of doing this job is about $3200

 

You have the '05.

Chances are if they haven't been replaced in 100k-150k or the last 10yrs, your cam seals are leaking (typical for VVTi engines in the '05-'06), and your valve covers are leaking. Not sure about crankshaft seal, is it possible you misinterpreted the mechanic? (camshaft/crankshaft are commonly interchanged incorrectly)

If the cam seals are leaking, you'll typically see that down the front of the block. If your valve covers are leaking, you'll typically find traces of oil and sludge on the metal flange at the base of the valve covers, AND often dripping down onto the steering rack, running down the oil dipstick tube, and sometimes coating the inside of the skid plate if you have one on your truck.

I can give you pictures of what cam seal leaks typically look like, both passenger and driver side I think, and also valve cover leaks and where you'll see oil, if that helps. Hell, my 06 has 75k miles and the valve covers were leaking like hell, and so were the cam seals. I was able to nip the cam seal leaks in the bud with some

$21 AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle

AT-205 additive which is not your typical 'fix in a bottle' stuff, it's not a stop-leak product, more of a seal refresher that's known to quell small leaks caused by aging gaskets (rear main seal, cam seals, etc.)

But again, if you're at almost 250k miles, you should be going onto your 3rd timing belt now, with Toyota's due date at 270k miles (3x90k)

 

Replaced my T-belt 10k ago. My mechanic wouldn’t do the job unless we did T belt and waterpump at the same time. Also change gaskets. Leave oil pump alone

 

Just to comment on AT 205 I first heard of it on a Scotty Kilmer YouTube video he has been using it for 30 yrs and it’s his first option when a customer comes to him with any leaks he swears by it and buys it by the case from Amazon. I have used it and you would be surprised how big of leaks it can fix

 

Obligatory "Scotty Kilmer is a shill", but I don't disagree with him on this one.

 

Ordered. Rear Main has had a seep for years. Valve covers seep. Now the Tube seal on #1 has a leak and it's enough that when I clean with brake clean, I can smell the oil on the exhaust again 2 days later.

 

Yeah, when my damn valve cover gaskets went, it happened in a matter of days. Not a little drip here, little drip there, overnight, burning oil after every drive, mainly the driver's side, closest to firewall, dripping right on the manifold. And it was a healthy amount coming out. Every other car I've owned, it was a faint whiff here or there, which slowly increased with time.