I Need honda help.

[herculesinwyoming]

My sons girlfriend  has a 1987 accord. the other day her timing bet broke while going 65. Is this engine gong to be ok, or do we have a bunch of bent valves? 

 

i looked online and some say its interference engine and others say it isn't. 

[flatcat19]

You are probably going to be ok. 

 

Do you have an air compressor and a compression tester?

 

Timing cover will need to come off to replace belt. Get to that point. 

Take the hose that fits your motor and remove the schraeder valve from it. 

 

Each cylinder will need to be on TDC. Inject air to hear if it leaks. 

If no abnormal conditions-carry on with replacing the timing belt. 

 

I have seen many Hondas break timing belts, and heard of many more.

I have not seen a single one that has needed a new head. 

Not saying it doesn't happen-just that I have not heard of one needing it. 

 

GL!

[herculesinwyoming]

thanks, i have all the tools you named. 

poor girl is  pretty upset. but she got the car for free. 

[flatcat19]

Like I said, I'm sure you'll be fine. 

Update when you know. 

 

Have your air compressor turned down when doing this. 

[67_1600]

I believe that is an interference motor, meaning there is a good chance there will be some bent valves. Hopefully I'm wrong.

[flatcat19]

Even being IR means little. 

Most of the ones I have seen were IR. 

 

Free car-no loss. Just an hour to determine condition. 

[herculesinwyoming]

I have to work tomorrow, so a few days I will have a better idea if it will live.

Railroad work means at least two days away from home.

[HRH]

I had a buddy who walked a belt three times in his Honda and it was interference too.  They seem to close up the valves pretty quickly when they break, because he never had to do any head work on his either.  Nissans on the other hand, yeah, they'll hit.  And it will be bad.

[flatcat19]

I had a buddy who walked a belt three times in his Honda and it was interference too.  They seem to close up the valves pretty quickly when they break, because he never had to do any head work on his either.  Nissans on the other hand, yeah, they'll hit.  And it will be bad.

 

So true. 

 

I have seen so many VQ35DEs eat valves. 

[scooter stuff]

My wifes 85 CRX bent the valves when her timing belt snapped.

[HRH]

Yeah, it can definitely happen, but for some reason the Hondas seem to get away with it more even when they're not supposed to.

[DRIVEN]

My experience has been about 50/50.

[Longtooth]

We would tell the customer there is that chance. Put the belt on and it runs everyone wins. If it runs poorly need to remove the head and check for bent valves and the pistons for holes.

[dr.feltersnatch]

My experience has been about 50/50.

same here. i have done probably 10 honda timing belts and some have hit and grenaded, some have been perfectly fine and one you could see the marks on the pistons from valves hitiing but not bad enough to break anything. but it was a honda so zero fucks given just drive the fuckin thing. i had an 86 civic and the fucking camshaft broke in half on the freeway. i literally had to pay someone to take that pos away.

[thisismatt]

So true. 

 

I have seen so many VQ35DEs eat valves. 

 

Front broken timing belt?  Chain...?

[flatcat19]

Front broken timing belt?  Chain...?

 

Chain driven motor. 3 chains.

1 for each head then one big one to spin the whole thing. 

 

Believe it or not-dowel pins falling out of the cams that clock the timing gears. 

They do have/had bad chain tensioners and guides-but I have not seen that be the cause of failure. 

 

Frontier, Xterra, Pathfinders VQ40DE are prone to everything I posted as well. 

[thisismatt]

Yeah, I knew they were chains so I was wondering what you meant :)

[flatcat19]

Yeah, I knew they were chains so I was wondering what you meant :)

 

When the Nissan's let go-it's fast. 

 

Seen it happen 3 times in front of me. 

Running, running, running, tink-halt. 

[oldschool90]

Similar situation with my Eclipse. Timing belt slipped getting on the freeway, car takes half a shit, barely running. Pull over, takes the rest of the shit and wont start back up. Took it to my mechanic and he said he couldn't turn the crank without hitting something. He's gonna put the new belt on Monday, praying for a miracle, but if not, I'm screwed.

[flatcat19]

Similar situation with my Eclipse. Timing belt slipped getting on the freeway, car takes half a shit, barely running. Pull over, takes the rest of the shit and wont start back up. Took it to my mechanic and he said he couldn't turn the crank without hitting something. He's gonna put the new belt on Monday, praying for a miracle, but if not, I'm screwed.

 

It's possible that the timing components are just jammed up in there making it hard to turn over. 

A cylinder leakage test prior to just slapping a belt on is quicker and will be cheaper. 

No need to do work if you know it will do nothing to benefit your cause. 

[captaingamez]

Its 50/50 with Hondas, sometimes they do, sometimes they dont. A lot of times they do. D engine is your best bet on not having an issue.

 

B engines you will likely break shit.

 

C 50/50

 

NSX C, dead beyond a shadow of doubt.

 

F 50/50

 

S2000 F, Dead beyond a shadow of doubt (if snapped chain, or non-pressured tensioner)

 

H, 80/20 Dead.

 

D, meh, maybe

 

K, Dead beyond shadow of doubt, ( if the oil pressure fed chain tensioner does not tension, or chain snap)

 

R- No fookin idea.

[Fat510]

The D series can take some damage man

[captaingamez]

Hell yeah, they are like the 3TC of Hondas engines, lol.

 

K are truly indestructible fuckers though.

[flatcat19]

*they're 

 

Where did you get those figures from?

[captaingamez]

Corrected.

 

Not really figures, just my/ other peoples experience with them

 

I hang out with a lot of people that work at Hasport and have some experiences with the crazier motors. I have never touched an NSX C, or an S2000 F engine myself.  I know my K series though.