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Tundra Timing Belt Change

btfarm

America First!
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Location
Sandwich, Illinois
Changing my son's Tundra ('07 mid size V8) timing belt this coming weekend. Anybody done one? He says he has some info from a 'yota forum and they say the radiator has to come out. Not too thrilled about that.
 
Oh what a feeling! Having to change a timing belt on a V8... :eek:

Something to be said for the "outdated" pushrod design GM uses and that is keeping engineers from a high maintenance and fail prone timing belt design on an interference engine.

Seriously this is like Ford Escort technology on a V8! :shiiiiiite:
 
Never done a V8, don a V6 before and it wasn't that bad. The last timing belt I did in a TOYota wasn't fun at all, it was an 06 HIGHLANDER with a V6 and it was a TIGHT fit. You had to roll the timing belt in on it's side it was so tight to the frame.
 
Mike, this might be a good time to supervise, best way for your son to learn is by doing.;)
 
He'll be there with me in the shop but he's not a particularly good mechanic so I'll be doing more rather than less... He works his ass off helping us out whenever we need it and basically never asks for anything in return so I'm not complaining. Bet I'll be grumbling during the job though...;)
 
Here's the story. He went through a bad situation in Az and escaped with a divorce and a file for bankruptcy. Moved back to here and within 3 yrs had worked his way back to buying a house and had a business. Got to where he could sell his old truck and buy a new one. Went to buy a GMC ExCab 1500 and he was ready to sign the loan when he said: "hang on... let me measure my garage one more time." The Tundra turned out to be the ONLY one that fit with the door closed. He is a pro DJ and when he gets home at 2-3 AM he doesn't want to unload many thousands of $ worth of equipment until the next day. Gotta park inside. Stuck with the truck for now and it's seriously due for a timing belt so there we are. I'm taking Friday and Saturday to work on it with him then Sat night he popped for tickets to take his Mom and I to see Big Head Todd and the Monsters at House of Blues. I've probably worked on worse shit...:agreed:
 
I feel his pain.

Our place in N. Idaho had a 1950's-ish era built single car pole built style "garage". If I tore it down to build a new bigger garage I wouldn't have been allowed because of planning/zoning requirements. The original "garage" was built right on the property line. However, I could add to an existing building without needing permits. I took tons of measurements and even talked to an architect on how to build an add-on to make it more of a normal size 2 car garage. Space was at a premium and I just couldn't quite get it big enough to fit my beast inside. In the end I could at least get my patrol truck in one bay......barely. Literally had about 2 inches to spare front, back, and right side.
 
There are garage doors designed to work in low overhead situations to maximize opening height. Have you checked into anything like them?

Don
 
If it is a Toyota pickup, it shouldn't be that bad, as compared to a Toyota Highlander. Rear wheel drive versus front wheel drive. I did one on a 4 cyl Toyota a long time ago. Pretty easy and straightforward. For a decent mechanic, nothing but a piece of cake! As long as you have done your homework first, it should be easy.

Make sure everything is in alignment prior to taking odd the belt and putting the new one on. Then putting on the new one should go quicker. Also it is probably a double cam setup, so just a little extra work there for each bank, but still fairly simple for a decent mechanic. I would call you a good if not great mechanic Mike! ;)
 
Teardown and ready to start reassembly took 4 hours. Not all that bad but GEEZE...Bracketry much? :wtf: Got a couple of bleeders out of it but I'll live. Alot of hidden bolts but nothing too tough to get at. We'll probably have it together and fired off in 3 Hrs or so tomorrow.
 
Took way more than 3 hrs to reassemble. But it's done. Don't want to do that again. I'll take a pushrod, old school V8 any day over the crap this thing had all sandwiched together... Sheesh!
Here's a few pics when it was all torn down including the waterpump ready to replace (it was weeping some).
I was surprised at the cleanliness of everything with 116,000 on it.

Toyota1.jpg Toyota.jpg Toyota2.jpg

The Big Head Todd and the Monsters with guest Ronnie Baker Brooks was 3 hours of incredible! Best show I've seen live in 20 years since we saw Clapton.
 
Glad to see that you got it done Mike! What type of marks did it have on the cams for timing? Just curious.

I can see in pic 2 he didn't have the cam perfectly lined up with the mark. I know the GATES belts are marked with lines that you line up with the marks on the pulleys so you don't have to line up all the timing marks on the covers. And thats a pretty unusual VVT setup it looks like.
 
When you pull the belt at TDC (you can see pic #1 I had it at TDC) the valve spring pressure will rotate both cams off position. Both idlers are out in these shots as is the tensioner on the RH idler (hole right of the crank sprocket). Those had to come out for WP replacement. Re-installing the belt is: 1) Install the idlers but not the hydraulic tensioner. 2) Line up the LH cam (green mark) with the new belt mark. 3) line up the belt mark and crank sprocket mark (on the bottom and incoveniently out of sight). That will pull the LH cam to it's mark. 4) Use your 3rd hand to hold that side in position (I had Jeff to do that) :D 5) Turn the RH cam as needed to line up with thebelt mark as you work it onto the sprocket. 6) Once it's all on and in place you install the tensioner from the bottom and that force will rotate the RH cam to the mark. 7) Put the damper bolt in and rotae the engine 2 revs and confirm all the sprocket (pulley) marks line up where they should be (ignore the belt marks-they no longer matter.
Worst part of the job is all the brackets and crap to get to the actual work you want to do. Absolute worst of that is re-installing the AC compressor (sitting on the crossmember in the 2nd pic lower right). We killed an hour with that, another hour with getting the reassembly sequence wrong/cable re-routing.
 
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